Abstract

Provided is a polymerizable composition that is for a resin-impregnated superconducting coil and that has excellent impregnation ability and can be used for manufacturing a resin-impregnated superconducting coil having excellent durability in a high-dose environment (in a high-dose environment in which the radiation dose per 100,000 hours is at least 1 MGy). Provided is a polymerizable composition for a resin-impregnated superconducting coil used in a high-dose environment in which the radiation dose per 100,000 hours is at least 1 MGy, the polymerizable composition comprising a norbornene-based monomer, rare-earth element-containing particles, and a metathesis polymerization catalyst.

IPC Classes  ?

• H01F 6/06 - Coils, e.g. winding, insulating, terminating or casing arrangements therefor
• C08G 61/08 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms prepared by ring-opening of carbocyclic compounds of carbocyclic compounds containing one or more carbon-to-carbon double bonds in the ring
• C08L 65/00 - Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chainCompositions of derivatives of such polymers

Abstract

[Problem] To provide a unipolar induction acceleration induction acceleration cell in which a reset voltage of a magnetic body is not allowed to affect a charged particle beam, and to provide an acceleration device and an acceleration method for a charged particle beam that use the acceleration cell to perform induction-acceleration of a DC charged particle beam existing over one round of a ring of an accelerator. [Solution] The present invention provides a configuration of a unipolar induction acceleration cell which is an induction acceleration cell characterized by further comprising: a first diode group composed of a plurality of first diodes disposed to connect ends of a metallic beam pipe, which is divided by a first insulator provided in a band shape in the circumferential direction of the beam pipe, the plurality of first diodes being disposed in parallel and at equal intervals in the circumferential direction; and a second diode group composed of a plurality of second diodes disposed to connect ends of a metallic outer cylinder of the induction acceleration cell, the outer cylinder being divided by a second insulator disposed in a band shape around the beam pipe, the plurality of second diodes being disposed in parallel and at equal intervals.

IPC Classes  ?

• H05H 13/04 - Synchrotrons

Abstract

This photocathode comprises a substrate, a plurality of structures arranged so as to form a nano-order periodic array structure on the substrate, and a photoelectron emission part disposed on at least one of the plurality of structures, the photoelectron emission part emitting photoelectrons in response to the incidence of excitation light.

IPC Classes  ?

• H01J 1/34 - Photo-emissive cathodes
• H01J 40/06 - Photo-emissive cathodes

Abstract

A model generation method according to one aspect of the present invention acquires first data and second data regarding a crystal structure of a material, and performs machine learning for a first encoder and a second encoder by using the first data and the second data. The second data indicates a property of the material with an index different from that of the first data. The first encoder is configured to convert the first data into a first feature vector, and the second encoder is configured to convert the second data into a second feature vector. The dimension of the first feature vector is the same as the dimension of the second feature vector. In machine learning, the first encoder and the second encoder are trained so that the values of the feature vectors of the positive samples are positioned close to each other, and the feature vector of the negative sample is positioned far from the feature vector of the positive sample.

IPC Classes  ?

• G16C 20/70 - Machine learning, data mining or chemometrics
• G16C 20/50 - Molecular design, e.g. of drugs

Abstract

This cryo-electron microscope sample preparation kit is provided with: an amphiphilic protein and a protein crosslinking agent; or an expression vector including a nucleic acid encoding amphipathicity. This cryo-electron microscope sample preparation kit is provided with an ice-thickness controlling molecule having an amphiphilic protein bound thereto. The amphiphilic protein may have an amphiphilic α-helix structure. The amphiphilic protein may be an antifreeze protein or a type-I antifreeze protein.

IPC Classes  ?

• C12N 15/12 - Genes encoding animal proteins
• C07K 14/245 - Escherichia (G)
• C07K 14/435 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans
• C07K 19/00 - Hybrid peptides
• C12M 1/00 - Apparatus for enzymology or microbiology
• C12M 3/08 - Apparatus for tissue disaggregation
• C12N 9/00 - Enzymes, e.g. ligases (6.)ProenzymesCompositions thereofProcesses for preparing, activating, inhibiting, separating, or purifying enzymes
• C12N 15/63 - Introduction of foreign genetic material using vectorsVectorsUse of hosts thereforRegulation of expression
• G01N 1/28 - Preparing specimens for investigation

Abstract

This suction device is attached to a bottomed cylindrical container. The suction device comprises a suction part, a suction machine, a suction tube, and a filter. The suction part has a suction port and is attached to an opening of the container. The suction machine suctions air. The suction tube is connected to the suction part and the suction machine and communicates with the suction port, and air circulates through the suction tube. The filter is connected to the suction tube.

IPC Classes  ?

• H01J 37/20 - Means for supporting or positioning the object or the materialMeans for adjusting diaphragms or lenses associated with the support

Abstract

This accelerating cavity comprises: a cylindrical electrically conductive housing formed by joining together a plurality of divided members that are divided at planar dividing surfaces along a central axis; a plurality of cell portions that are arranged inside the housing, in a line in an axial direction of the central axis of the housing, and that communicate with one another by way of communicating portions through which charged particles can pass; and projecting portions which are disposed inside the housing in positions surrounding the communicating portions of each cell, project toward an inside of each cell portion in the axial direction, and are formed in a shape that widens in a radial direction relative to the central axis, from a tip end portion side toward a base end portion side in the axial direction.

IPC Classes  ?

• H05H 7/18 - CavitiesResonators
• H05H 13/04 - Synchrotrons

Abstract

An oscillation circuit (1) according to this invention comprises a Pierce circuit (2) and a Colpitts circuit (3) that share an oscillator (X1) and the input part of amplifiers (A1, A2). Switches (SW1, SW2) connected between the output parts of the respective amplifiers (A1, A2) of the Pierce circuit (2) and Colpitts circuit and the ground are controlled to output an oscillation signal of the Pierce circuit (2) during oscillation startup and to output an oscillation signal of the Colpitts circuit (3) during steady oscillation. An oscillation circuit that enables both high-speed startup and low current consumption can be provided.

IPC Classes  ?

• H03B 5/32 - Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator

Abstract

A model generation method according to one aspect of the present invention acquires first data and second data which pertain to the crystal structure of a material and uses the first data and the second data to carry out machine learning of a first encoder and of a second encoder. The second data indicates a property of the material with an index that differs from that of the first data. The first encoder converts the first data into a first feature vector, and the second encoder converts the second data into a second feature vector. The dimension of the first feature vector is the same as the dimension of the second feature vector. In the machine learning, the first encoder and the second encoder are trained such that the values of feature vectors of positive samples are positioned close to each other and such that the feature vectors of negative samples are positioned far from the feature vectors of the positive samples.

IPC Classes  ?

• G06N 3/04 - Architecture, e.g. interconnection topology
• G06N 3/08 - Learning methods

Abstract

The purpose of the present invention is to provide a non-evaporable-getter coating device capable of coating a non-evaporable getter on an inner surface of a vacuum container or a vacuum pipe of various shapes and standards when used by being attached thereto. Provided are: a non-evaporable-getter coating device characterized by including a sputtering target having an internal space, a permanent magnet column disposed in the internal space area of the sputtering target and formed from multiple permanent magnets disposed in series, with the directions of the magnetic fields thereof being alternately arranged, and a flange to which the sputtering target and the permanent magnet column are fixed, wherein the ratio (LM/EDM) of the length LM of the permanent magnet to the external diameter EDM of the permanent magnet is 1.0 to 4.0, and the ratio (EDM/EDN) of the external diameter EDM of the permanent magnet to the external diameter EDN of the sputtering target is 0.3 to 0.8; a method for manufacturing a non-evaporable-getter-coated container and/or a non-evaporable-getter-coated pipe; and the non-evaporable-getter-coated container and/or the non-evaporable-getter-coated pipe.

IPC Classes  ?

• C23C 14/34 - Sputtering
• F04B 37/02 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups for evacuating by absorption or adsorption
• F04B 37/16 - Means for nullifying unswept space

Abstract

In this invention, a semiconductor sensor 1 comprises an n-type semiconductor substrate 2 and an n-type semiconductor layer 3 that is formed on the semiconductor substrate 2, and a plurality of pillars 5 are formed on the semiconductor layer 3. Electrodes 7 are formed on the upper surfaces of each pillar 5, and a rear surface electrode 8 is formed on the rear surface of the semiconductor substrate 2. The electrodes 7 are separated from each other. Each pillar 5 has a p-n junction or Schottky junction on the upper and lateral surfaces thereof.

IPC Classes  ?

• G01T 1/24 - Measuring radiation intensity with semiconductor detectors
• H01L 31/10 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof in which radiation controls flow of current through the device, e.g. photoresistors characterised by at least one potential-jump barrier or surface barrier, e.g. phototransistors
• H01L 27/144 - Devices controlled by radiation
• H01L 27/146 - Imager structures
• H04N 5/30 - Transforming light or analogous information into electric information

Abstract

An accelerating cavity includes an electrically conductive cylindrical housing and a plurality of cells that are made of a dielectric material and have openings in respective central portions of the cells through which charged particles are allowed to pass. The cells are arranged inside the housing while being aligned in the axial direction of the central axis of the housing, and sandwiched by the housing in the axial direction of the central axis to be immobilized. The housing has grooves provided on portions thereof that support the respective cells and each having a depth that is one fourth of the wavelength of radio frequency waves for the acceleration mode that propagate through the cells.

IPC Classes  ?

• H05H 9/04 - Standing-wave linear accelerators
• H05H 7/18 - CavitiesResonators
• H05H 9/00 - Linear accelerators

Abstract

11211111211113114222) and a ground terminal during oscillating operation. This makes it possible to achieve low power consumption and high-speed oscillation startup of the oscillation circuit.

IPC Classes  ?

• H03B 5/32 - Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
• H03B 5/36 - Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device

Abstract

This acceleration cavity comprises: a cylindrical housing having conductivity; and a plurality of cells that are formed of a dielectric material, each have, at a central portion thereof, an opening part through which charged particles can pass, are disposed inside the housing while being arranged in the axial direction of the central axis of the housing, and are each fixed while being sandwiched by the housing in the axial direction of the central axis, wherein the housing has a groove part provided in a portion holding each of the cells and having a depth of a quarter of the wavelength of a high-frequency acceleration mode in which the cells are propagated.

IPC Classes  ?

• H05H 7/18 - CavitiesResonators
• H05H 9/00 - Linear accelerators
• H05H 13/04 - Synchrotrons

Abstract

Provided are: a non-evaporable getter coated component and chamber including a non-evaporable getter material layer with a total storage capacity of carbon atoms, nitrogen atoms and oxygen atoms of 20 mol % or less and/or a noble metal layer with a total storage capacity of carbon atoms, nitrogen atoms and oxygen atoms of 20 mol % or less; a manufacturing method of a non-evaporable getter coated component and chamber, the method including a step of forming a non-evaporable getter material layer and/or a noble metal layer by coating a non-evaporable getter material and/or a noble metal by a vapor deposition method under low pressure; and a manufacturing apparatus of a NEG coated component and chamber including a NEG material filament and/or a noble metal filament and a current feedthrough.

IPC Classes  ?

• F04B 37/04 - Selection of specific absorption or adsorption materials
• C23C 14/26 - Vacuum evaporation by resistance or inductive heating of the source
• C23C 14/16 - Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon

Abstract

A time-resolved photoemission electron microscopy including: a laser light source that outputs a pulse having less than or equal to a femtosecond level pulse width and variable repetition frequency; a pump light pulse generator configured to generate pump light pulse that excites photo-carriers of a sample by converting wavelength of light output from the laser light source; and a probe light pulse generator configured to generate probe light pulse that photo-emits photo-carriers excited by the pump light pulse from the sample by photoelectric effect by converting wavelength of light output from the laser light source. The energy of at least one of the pump light pulse and the probe light pulse is configured to continuously vary in a range not less than 0.1 eV and not more than 8 eV.

IPC Classes  ?

• G01N 23/227 - Measuring photoelectric effect , e.g. photoelectron emission microscopy [PEEM]
• G01N 23/2273 - Measuring photoelectron spectra, e.g. electron spectroscopy for chemical analysis [ESCA] or X-ray photoelectron spectroscopy [XPS]
• G02F 1/35 - Non-linear optics

Abstract

Provided are a cell for X-ray analysis and an X-ray analysis apparatus that enable simultaneous X-ray diffraction and X-ray absorption fine structure measurements of a material (sample) in the same field of view on the sample (same position on the sample). The cell for X-ray analysis of the present invention enables simultaneous X-ray diffraction and X-ray absorption fine structure measurements of a sample in the same field of view on the sample and includes a furnace including a space where the sample is held and a focused heater heating the sample, a first window provided to the furnace and through which X-rays directed at the sample is incident, a second window provided to the furnace and from which X-rays emerging from the sample exit, a third window provided to the furnace, and a holder that positions the sample in the space. The cell for X-ray analysis makes it possible to simultaneously measure X-ray diffraction of the sample at outside of the second window and X-ray absorption fine structure of the sample through the third window.

IPC Classes  ?

• G01N 23/20033 - Sample holders or supports therefor provided with temperature control or heating means
• G01N 23/2055 - Analysing diffraction patterns
• G01N 23/085 - X-ray absorption fine structure [XAFS], e.g. extended XAFS [EXAFS]

Abstract

3.

IPC Classes  ?

• H01F 7/02 - Permanent magnets
• H05H 7/04 - Magnet systemsEnergisation thereof

Abstract

This time-resolved photoemission electron microscope device has a laser light source (1) for repeated variable frequency output of pulses having a pulse width at the femtosecond level or lower, a pump light generation unit for subjecting the light output from the laser light source to wavelength conversion and thereby generating pump light (8) for exciting photocarriers of a sample, and a probe light generation unit for subjecting the light output from the laser light source to wavelength conversion and thereby generating probe light (7) for causing the photocarriers excited by the pump light to be emitted from the sample through the photoelectric effect. At least one from among the energy of the pump light and probe light is continuously variable.

IPC Classes  ?

• G01N 23/227 - Measuring photoelectric effect , e.g. photoelectron emission microscopy [PEEM]

Abstract

Provided are a component and a container, which are coated with a non-evaporative getter, the component and the container being characterized by including: a non-evaporative getter material layer containing a total of 20 mole% or less of occluded carbon atoms, nitrogen atoms, and oxygen atoms; and/or a noble metal layer containing a total of 20 mole% or less of occluded carbon atoms, nitrogen atoms, and oxygen atoms. Also provided is a method for manufacturing a non-evaporative getter-coated component and container, the method being characterized by comprising a step for forming a non-evaporative getter material layer and/or a noble metal layer by coating the component and container with a non-evaporative getter material and/or a noble metal by a vapor deposition process under low-pressure conditions. Also provided is an apparatus for manufacturing an NEG-coated component and container, the apparatus being characterized by having an NEG material filament and/or a noble metal filament, as well as a current terminal.

IPC Classes  ?

• F04B 37/04 - Selection of specific absorption or adsorption materials
• F04B 37/02 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups for evacuating by absorption or adsorption

Abstract

Provided is a fiber laser circuit that enables an industrial laser to be generated. This fiber laser circuit includes a circuit A, wherein the circuit A includes, as the basic structure: a pulse stretcher unit 1 that stretches laser pulses from mode-lock laser pulses; a first fiber laser amplification unit 2 that amplifies the intensity of the laser pulses by ten times or more; a first frequency conversion unit 3 that converts the repetition frequency of the laser pulses; and a second fiber laser amplification unit 4 that amplifies the intensity of the laser pulses, of which the repetition frequency has been converted, by ten times or more.

IPC Classes  ?

• H01S 3/067 - Fibre lasers

Abstract

[Problem] The objective of the present invention is to provide a spin-polarized high brightness electron generating photocathode for backside illumination which has a simple construction, and to provide a method for manufacturing the same. [Solution] A thin film of a single-crystal compound semiconductor having negative electron affinity (NEA) is caused to form on a single-crystal substrate having nanometer surface flatness. This spin-polarized high brightness electron generating photocathode can be manufactured by metal-organic vapor phase epitaxy.

IPC Classes  ?

• H01J 1/34 - Photo-emissive cathodes
• H01J 9/12 - Manufacture of electrodes or electrode systems of photo-emissive cathodesManufacture of electrodes or electrode systems of secondary-emission electrodes

Abstract

[Problem] The purpose of the present invention is to provide a radiation measurement device for measuring the temperature of an object with high precision. [Solution] In the present invention: radiation from an object is separated into polarized light by a polarized-light filter (3); one portion of the polarized light is introduced into a spectrum analyzer (7) via a first optical path, the other portion of the polarized light is introduced into the spectrum analyzer (7) via a second optical path, and the dichroic ratio of the radiation is measured; radiation from a black body (2), which has been placed within a vacuum-cryogenic-temperature vessel (1) in a state of quasi-thermal equilibrium at a vacuum cryogenic temperature, is introduced into the polarized-light filter (3) through a third optical path and separated into polarized light; the resulting polarized light is introduced into the same optical paths as those for the portions of polarized light from the object and then introduced into the spectrum analyzer (7), and the dichroic ratios are measured; and the temperature of the object is determined with high precision from these two dichroic ratios.

IPC Classes  ?

• G01J 5/00 - Radiation pyrometry, e.g. infrared or optical thermometry
• G01J 5/02 - Constructional details
• G01J 5/10 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
• G01J 5/46 - Radiation pyrometry, e.g. infrared or optical thermometry using radiation pressure or radiometer effect
• G01J 5/58 - Radiation pyrometry, e.g. infrared or optical thermometry using absorptionRadiation pyrometry, e.g. infrared or optical thermometry using extinction effect
• G01J 5/60 - Radiation pyrometry, e.g. infrared or optical thermometry using determination of colour temperature

Abstract

A magnetic measurement system includes an X-ray source, a monochromator that converts right- and left-polarization X-ray into right- and left-monochromatic X-ray, an aperture slit that allows the right- and left-monochromatic X-ray to pass through, an analytical section, and piezoelectric scanning devices. The analytical section has a Fresnel zone plate that receives and focuses the right- and left-monochromatic X-ray on a single point being 10 nm or less wide of a magnetic sample, an order-sorting aperture that allows the focused X-ray to selectively pass through, a sample-stage that sets a comparatively thick magnetic sample that is more than 150 nm thick and less than or equal to 1000 nm thick to be irradiated with the X-ray, and an X-ray-detector that detects transmittance of transmission X-ray passing through the comparatively thick sample and that generates X-ray magnetic circular dichroism (XMCD) data by directly measuring the detected transmittance of the transmission X-ray.

IPC Classes  ?

• G01R 33/12 - Measuring magnetic properties of articles or specimens of solids or fluids
• G01N 23/083 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the radiation being X-rays

Abstract

The objective of the present invention is to provide an acceleration cavity and an accelerator such that the Q value can be increased compared to prior art normal conducting acceleration cavities, and power efficiency can be increased. This high-frequency acceleration cavity (1) comprises: a housing (3) whereof the inner peripheral surface is cylindrical in shape, and electrically conductive at least on the surface thereof; and a plurality of acceleration cells (2) provided inside the housing (3), each being a dielectric having formed in a central portion thereof an opening (5a) wherethrough a charged particle can pass. The housing (3) has a cylinder body (6) having a cylindrical shape, and end plates (7) provided at both ends of the cylinder body (6). A plurality of the acceleration cells (2) are disposed throughout from the end plate (7) at one end side to the end plate (7) at the other end side of the housing (3). Each of the acceleration cells (2) comprises: a cylinder body (4) having a diameter smaller than the internal diameter of the cylinder body (6) from the housing (3); and a disc portion (5) where the opening (5a) is formed, fixed onto the cylinder body (4) on the inner side of the cylinder body (4), and disposed in such a manner that the plate surface thereof is orthogonal to the charged particle passage axis.

IPC Classes  ?

• H05H 7/18 - CavitiesResonators

Abstract

The present invention provides a radiation-damage-compensation-circuit and a SOI-MOSFET that has high radiation resistance. The SOI-MOSFET has the radiation-damage-compensation-circuit to recover the characteristics of the SOI-MOSFET after X-ray irradiation.

IPC Classes  ?

• H01L 21/822 - Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
• H01L 21/8234 - MIS technology
• H01L 27/04 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body
• H01L 27/08 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including only semiconductor components of a single kind
• H01L 27/088 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate
• H01L 29/786 - Thin-film transistors
• H01L 29/861 - Diodes
• H01L 29/868 - PIN diodes

Abstract

The present invention provides a new nuclear-waste-disposal method and its apparatus which is different from neutron ADS. The present invention comprises the processes to generate pion through irradiation a target with strong pulse proton, to generate negative muon by decay of said pion and to irradiate nuclear waste with said negative muon, thereby to dispose nuclear waste.

IPC Classes  ?

• G21F 9/00 - Treating radioactively contaminated materialDecontamination arrangements therefor
• G21G 1/10 - Arrangements for converting chemical elements by electromagnetic radiation, corpuscular radiation, or particle bombardment, e.g. producing radioactive isotopes outside of nuclear reactors or particle accelerators by bombardment with electrically-charged particles

Abstract

There is provided a semiconductor device and a method for manufacturing a semiconductor device. Within the N-type semiconductor layer formed from a high resistance N-type substrate, the P-type well diffusion layer and P-type extraction layer are formed and are fixed to ground potential. Due thereto, a depletion layer spreading on the P-type well diffusion layer side does not reach the interlayer boundary between the P-type well diffusion layer and the buried oxide film. Hence, the potential around the surface of the P-type well diffusion layer is kept at a ground potential. Accordingly, when the voltages are applied to the backside of the N-type semiconductor layer and a cathode electrode, a channel region at the MOS-type semiconductor formed as a P-type semiconductor layer is not activated. Due thereto, leakage current that may occur independently of a control due to the gate electrode of a transistor can be suppressed.

IPC Classes  ?

• H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
• H01L 27/146 - Imager structures
• H01L 21/265 - Bombardment with wave or particle radiation with high-energy radiation producing ion implantation
• H01L 27/144 - Devices controlled by radiation
• H01L 29/861 - Diodes
• H01L 21/225 - Diffusion of impurity materials, e.g. doping materials, electrode materials, into, or out of, a semiconductor body, or between semiconductor regionsRedistribution of impurity materials, e.g. without introduction or removal of further dopant using diffusion into, or out of, a solid from or into a solid phase, e.g. a doped oxide layer
• H01L 21/84 - Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being other than a semiconductor body, e.g. being an insulating body
• H01L 29/66 - Types of semiconductor device
• H01L 27/06 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration
• H01L 29/786 - Thin-film transistors

Abstract

The present invention materializes mass production related to an advanced manufacturing method of end-group components from pure niobium plate material for superconducting high frequency accelerator cavities. It converts the conventional full machining or waterjet cutting followed by the conventional cold forging to the whole press-forming. The method includes: (1) shear-blanking procedure of the pure niobium plate different from the conventional fine blanking, wherein the clearance is set to be a value below 0.5% of pure niobium plate thickness to form a near net shape semi-product; and (2) forging procedure at different temperatures from the conventional hot, warm or cold forging. Press forging is conducted to be free from the occurrence of blue brittleness/necking and to bring about prominent metal-flow, formability, the size accuracy in any portion of a product and the margin of further press-forming by controlling forging temperature to be below 200.degree.C and beyond ambient room temperature.

IPC Classes  ?

• B21D 28/00 - Shaping by press-cuttingPerforating
• B21D 28/02 - Punching blanks or articles with or without obtaining scrapNotching
• B21D 28/16 - Shoulder or burr prevention
• B21J 1/06 - Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
• B21J 5/00 - Methods for forging, hammering, or pressingSpecial equipment or accessories therefor
• B21J 13/02 - Dies or mountings therefor
• B21K 25/00 - Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components
• B30B 15/14 - Control arrangements for mechanically-driven presses

Abstract

[Problem] To provide a method for manufacturing thick pure niobium end group components for a superconducting high-frequency acceleration cavity wherein conventional cutting processes and water jet processes are converted to pressing processes. [Solution] The method for manufacturing pure niobium end group components for a superconducting high-frequency acceleration cavity used in the acceleration of charged particles is characterized by: comprising (1) a shear cutting process that differs from precision blanking for forming a principal form while constraining thick pure niobium material by a binding jig with a fine clearance of 0.5% or less of the sheet thickness of the thick pure niobium material, and (2) a forging process differing from any of hot rolling, warm rolling, and cold rolling forging for forming a processed product while avoiding blue brittleness by low-temperature region temperature control of the principal form from room temperature to 200°C; and converting a cutting process and a water jet process for thick pure niobium end group components to pressing processes.

IPC Classes  ?

• B21J 5/00 - Methods for forging, hammering, or pressingSpecial equipment or accessories therefor
• B21D 28/00 - Shaping by press-cuttingPerforating
• B21D 28/02 - Punching blanks or articles with or without obtaining scrapNotching
• B21D 28/16 - Shoulder or burr prevention
• B21J 1/06 - Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
• B21J 13/02 - Dies or mountings therefor
• B21K 25/00 - Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components
• B30B 15/14 - Control arrangements for mechanically-driven presses

Abstract

[Problem to be Solved] The optical resonator as intends to generate coherent X-ray by irradiation of polarized laser interference fringes with electron beam has been unknown. [Solution] The present invention provides an optical resonator that is capable of preparing polarization laser, polarization X-ray and coherent X-ray. The optical resonator is characterized by comprising an optical resonator that is capable of circulating two or more polarization lasers and irradiation of the polarization lasers with electron beam introduced by an electron beam feed port which is inserted in the intersection of laser paths inside the optical resonator.

IPC Classes  ?

• H01S 4/00 - Devices using stimulated emission of electromagnetic radiation in wave ranges other than those covered by groups , or , e.g. phonon masers, X-ray lasers or gamma-ray lasers
• G21K 1/00 - Arrangements for handling particles or ionising radiation, e.g. focusing or moderating

Abstract

A method, system and apparatus are provided to measure magnetic characteristics of a comparatively thick magnetic sample in a magnetic field or nonmagnetic field by X-ray magnetic circular dichroism (XMCD). In particular, the method, system and apparatus measure the magnetic characteristics of the thick magnetic sample by irradiating the sample with X-ray, and detecting transmissive X-ray passing through the sample.

IPC Classes  ?

• G01N 27/72 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
• G01N 23/06 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption
• G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material

Abstract

[Problem] The present invention provides an electric wave measurement device that enables highly sensitive measurements of electric waves at extremely low temperatures. [Solution] In this electric wave measurement device, a radiation-blocking filter through which targeted electric waves can pass, an electric-wave-transmitting material that reflects non-targeted electromagnetic waves included among the electric waves, and an electric wave detector are placed in a vacuum vessel. Electric waves are passed through the radiation-blocking filter, and non-targeted electromagnetic waves included among the electric waves are reflected toward the radiation-blocking filter by the electric-wave-transmitting material, and said non-targeted electromagnetic waves are collected as heat at the radiation-blocking filter and radiated as heat to outside the system via heat conduction. The electric waves that passed through the electric-wave-transmitting material are measured with high sensitivity by the electric wave detector.

IPC Classes  ?

• G01R 29/10 - Radiation diagrams of antennas
• G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systemsAnalogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
• G02B 23/00 - Telescopes, e.g. binocularsPeriscopesInstruments for viewing the inside of hollow bodiesViewfindersOptical aiming or sighting devices

Abstract

It has been very difficult to accumulate strong laser in the conventional optical resonator, because firstly it has been very difficult to control a resonator length less than 1 dstrok; in resonation position which is required for the laser amplification more than 1,000 times and secondly, the conventional method has utilized laser strength of amplified laser in the optical resonator as the resonance control signal. The present invention provides an optical resonator system to accumulate strong laser. In the system, unamplified modulation wave or harmonic which are derived from oscillation laser are selectively used to tune a resonator length of the optical resonator.

IPC Classes  ?

• H01S 3/105 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity
• H01S 3/081 - Construction or shape of optical resonators or components thereof comprising three or more reflectors
• H05G 2/00 - Apparatus or processes specially adapted for producing X-rays, not involving X-ray tubes, e.g. involving generation of a plasma

Abstract

The present inventers provide an optical resonator which produces high strength of polarized laser beam so as to conduct laser Compton scattering, comprising: the 2-D-4-mirror optical resonator (A) includes the 2-D-4-mirror optic system which includes a pair of cylindrical concave mirrors (1, 2) and a pair of concave mirrors (3, 4) being arranged in the two-dimensional plane, the oscillation length controller device (10), the laser Compton scattering port (7) to conduct collisions laser beam and electron beam, the laser feed port (5) to guide an incident laser to the 2-D-4-mirror optic system, the electron feed port (6) to guide an incident laser to the laser Compton scattering port, the radiation output port (8) to output resultant laser Compton scattering radiation; the laser source unit (B) including the oscillation matching unit (F); the polarization controller unit (C); and the oscillation controller unit (D); wherein, laser beam supplied by the laser source unit (B) is the most strengthened in the laser Compton scattering port (7) in the 2-D-4-mirror optic system, selectively polarized through the intermediary of the polarization controller unit (C) and the oscillation controller unit (D).

IPC Classes  ?

• H01S 3/30 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
• H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
• H05G 2/00 - Apparatus or processes specially adapted for producing X-rays, not involving X-ray tubes, e.g. involving generation of a plasma

Abstract

The present invention provides a burst-laser generator using an optical resonator which produces high pulse-strength of burst-laser in order to conduct laser Compton scattering, comprising: a self-oscillation amplifying optical loop-path and an external optical resonator to burst-amplify laser, wherein, laser supplied by an exciting laser source is self-oscillation amplified with the self-oscillation amplifying optical loop-path and further burst-amplified with the external optical resonator.

IPC Classes  ?

• H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
• H01S 3/30 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
• H05G 2/00 - Apparatus or processes specially adapted for producing X-rays, not involving X-ray tubes, e.g. involving generation of a plasma

Abstract

A method for synthesizing a radioactive technetium-99m-containing substance and a synthesizing device are provided. The method for synthesizing a radioactive technetium-99m-containing substance has a step for generating negative muons and a step for irradiating the negative muons onto a ruthenium sample. The ruthenium material preferably includes a metallic ruthenium and/or a ruthenium compound. Also, the ruthenium sample preferably has a plurality of superimposed ruthenium thin plates having a thickness of 4 mm or less.

IPC Classes  ?

• G21G 4/08 - Radioactive sources other than neutron sources characterised by constructional features specially adapted for medical applications
• G21G 1/10 - Arrangements for converting chemical elements by electromagnetic radiation, corpuscular radiation, or particle bombardment, e.g. producing radioactive isotopes outside of nuclear reactors or particle accelerators by bombardment with electrically-charged particles
• G21K 1/093 - Deviation, concentration, or focusing of the beam by electric or magnetic means by magnetic means

Abstract

The present invention provides a method and a device for measuring a scattering intensity distribution capable of rapidly measuring the scattering intensity distribution in a reciprocal lattice space. An X-ray radiated from an X-ray source (101) is reflected using an X-ray optical element (102) so as to be focused in the vicinity of the surface of a specimen (SA). In a state where a correlation exists between the angles formed by a reference surface and each of a plurality of light paths of monochromatic X-rays focused via the light paths, and angles formed by the normal to the reference surface and a surface including a light path positioned in the center of the light paths, the monochromic X-rays are caused to impinge on the specimen at the same time at the glancing angle (ω), which differs depending on the individual light paths. The scattering intensity of the monochromic X-rays scattered from the specimen is detected using a two-dimensional detector (103). The scattering intensity distribution in the reciprocal lattice space is computed on the basis of the scattering intensity distribution detected by the two-dimensional detector and the correlation.

IPC Classes  ?

• G01N 23/20 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using diffraction of the radiation by the materials, e.g. for investigating crystal structureInvestigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materialsInvestigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using reflection of the radiation by the materials

Abstract

Provided is a target whereby radioactivation of a member by protons can be reduced. To reduce radioactivation of a member by protons, a novel target composed by combining a beryllium material, a lithium material and a nonmetal material is used.

IPC Classes  ?

• G21K 5/08 - Holders for targets or for objects to be irradiated
• G21K 5/02 - Irradiation devices having no beam-forming means
• H05H 6/00 - Targets for producing nuclear reactions

Abstract

End-group components for superconducting accelerator cavity used in acceleration of charged particles are manufactured by subjecting pure niobium sheet materials to press forming composed mainly of flat-bottomed cylindrical drawing, preferably by simultaneously conducting control of slide velocity and / or its motion and control of tool die temperature and / or its distribution / gradient in the above press forming, further preferably by dynamically controlling blank holding force in accordance with the variation of flange area, flange thickness and deformed characteristics of niobium sheet materials during the press forming, more preferably by preparing an anisotropically shaped blank instead of a circular blank by use of servo press forming machine, servo-die cushion temperature control equipment, water-soluble solid coating type lubricant, and a tooling die.

IPC Classes  ?

• B21D 22/20 - Deep-drawing
• B21D 24/00 - Special deep-drawing arrangements in, or in connection with, presses
• H05H 7/20 - CavitiesResonators with superconductive walls

Abstract

A pure niobium end group component of a superconducting acceleration cavity used in the acceleration of charged particles is manufactured from a pure niobium sheet material with a press-processing method primarily involving the contraction of a flat-bottomed cylinder. Preferably, in the pressing process the speed and/or the motion of a slide are controlled simultaneously with the control of the mold temperature and/ or distribution/gradient. More preferably, in the pressing process the fold-pressing load is controlled dynamically in accordance with changes in the flange area, the sheet thickness and the material properties of the niobium sheet material. Still more preferably, blanks of the pure niobium sheet material are made into irregularly shaped blanks.

IPC Classes  ?

• B21D 22/20 - Deep-drawing
• B21D 24/00 - Special deep-drawing arrangements in, or in connection with, presses
• H05H 7/20 - CavitiesResonators with superconductive walls

Abstract

There is provided a semiconductor device and a method for manufacturing a semiconductor device. Within the N-type semiconductor layer formed from a high resistance N-type substrate, the P-type well diffusion layer and P-type extraction layer are formed and are fixed to ground potential. Due thereto, a depletion layer spreading on the P-type well diffusion layer side does not reach the interlayer boundary between the P-type well diffusion layer and the buried oxide film. Hence, the potential around the surface of the P-type well diffusion layer is kept at a ground potential. Accordingly, when the voltages are applied to the backside of the N-type semiconductor layer and a cathode electrode, a channel region at the MOS-type semiconductor formed as a P-type semiconductor layer is not activated. Due thereto, leakage current that may occur independently of a control due to the gate electrode of a transistor can be suppressed.

IPC Classes  ?

• H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
• H01L 21/265 - Bombardment with wave or particle radiation with high-energy radiation producing ion implantation
• H01L 27/144 - Devices controlled by radiation
• H01L 29/861 - Diodes
• H01L 29/786 - Thin-film transistors

Abstract

A magnetic shielding material which can decrease the thickness by having excellent conductivity even at low temperatures of, for example, 77 K or lower, in a strong magnetic field of a magnetic flux density of 1 T or more is provide. A magnetic shielding material to be used at low temperatures of 77 K or lower in the magnetic field of a magnetic flux density of 1 T or more, comprises aluminum having a purity of 99.999% by mass or more.

IPC Classes  ?

• G01R 33/421 - Screening of main or gradient magnetic field
• C22C 21/00 - Alloys based on aluminium
• H01F 1/047 - Alloys characterised by their composition
• B23K 35/28 - Selection of soldering or welding materials proper with the principal constituent melting at less than 950°C
• C22C 45/08 - Amorphous alloys with aluminium as the major constituent
• G01R 33/3815 - Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets with superconducting coils, e.g. power supply therefor

Abstract

A method of production of a radio frequency accelerator which has a tubular part 1 which forms an acceleration cavity, including a temporary assembly step of making a plurality of component members 11 to 14 which have shapes obtained by splitting the tubular part 1 mate with each other to temporarily assemble them into the shape of the tubular part 10 and a welding step of welding the plurality of component members 11 to 14 together. The temporary assembly step includes a step of placing, inside of the tubular part 1, support members 21 for contacting the inside surface of the tubular part 1 and supporting the tubular part 1 from the inside, and the welding step includes a step of welding the plurality of component members 11 to 14 along the butt lines 51 by friction stir welding.

IPC Classes  ?

• F03H 1/00 - Use of plasma to produce a reactive propulsive thrust
• H05H 7/22 - Details of linear accelerators, e.g. drift tubes
• H05H 9/04 - Standing-wave linear accelerators

Abstract

Provided is a target wherein radioactivation of a member thereof by protons can be reduced. In order to reduce radioactivation of a member by protons, a new target composed by combining beryllium material (or lithium material) and nonmetal material is used.

IPC Classes  ?

• H05H 6/00 - Targets for producing nuclear reactions
• A61N 5/10 - X-ray therapyGamma-ray therapyParticle-irradiation therapy
• G21K 5/08 - Holders for targets or for objects to be irradiated
• H05H 3/06 - Generating neutron beams
• H05H 9/00 - Linear accelerators

Abstract

A photo-cathode high-frequency electron-gun cavity apparatus of the present invention is provided with a high-frequency acceleration cavity (1), a photo cathode (8/15), a laser entering port (9), a high-frequency-power input coupler-port (10), and a high-frequency resonant tuner (16). The photo-cathode high-frequency electron-gun cavity apparatus is characterized in using an ultra-compact high-frequency acceleration cavity that has formed therein cavity cells that do not have any acute-angled sections on the inner face thereof, and that are formed with just smooth curved surfaces, in order to prevent discharging, make the high-frequency electric field higher in intensity, and improve the resonance stability of the high-frequency wave. Further, the photo cathode was formed at an end section of a half-cell (5) of the high-frequency acceleration cavity to maximize electric field strength at the photo-cathode face, the laser entering port was formed at the back of an electron-beam taking-out port of the high-frequency acceleration cavity, at a position opposing the photo cathode, to secure a perpendicular laser entrance to maximize the quality of short-bunch photoelectrons, and the high-frequency-power input coupler-port (10) was formed at a side section of a cell of the high-frequency acceleration cavity to intensify the electric field of the high-frequency wave. In such a way, a compact photo-cathode high-frequency electron-gun cavity apparatus that is able to generate high-intensity and high-quality electron beams became possible to be provided.

IPC Classes  ?

• H01J 37/073 - Electron guns using field emission, photo emission, or secondary emission electron sources
• G21K 1/00 - Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
• H05H 7/08 - Arrangements for injecting particles into orbits
• G21K 5/02 - Irradiation devices having no beam-forming means

Abstract

Provided is a laser oscillation apparatus, wherein resonation can be stabilized even when the finesse of an optical resonator is made to be high, and laser beams stronger than those generated by conventional apparatuses can be generated by accumulating laser beams within the optical resonator. The laser oscillation apparatus is provided with: an excitation laser light-source that generates laser beams for excitation; fiber amplifiers that generate, when laser beams generated by the excitation laser light-source is supplied thereto, laser beams with the desired wavelength; an optical resonator; optical isolators that are inserted between the optical resonator and the fiber amplifiers, guide laser beams from the fiber amplifiers to one side of the optical resonator, and shut off laser beams in the opposite direction; and a light circling circuit that takes in laser beams radiated from the other side of the optical resonator, returns the laser beams to the optical resonator via the fiber amplifiers and the optical isolators, and facilitates the resonation; and a modulator that modulates the amplitude of the laser beams in the light circling circuit.

IPC Classes  ?

• H01S 3/098 - Mode locking; Mode suppression
• G02F 1/01 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour
• H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
• H01S 3/06 - Construction or shape of active medium
• H01S 3/083 - Ring lasers

Abstract

Disclosed is a semiconductor device in which a diode and a transistor coexist on the same substrate, and in which leakage current that is generated unrelated to control performed by a gate electrode of the transistor is suppressed, and also provided is a method for manufacturing the semiconductor device. A P-type well diffusion layer and a P-type extraction electrode region are formed in an N-type semiconductor layer, which is formed by a high resistance N-type substrate, and are fixed to ground potential by an electrode. The potential near the surface of the P-type well diffusion layer is held at the ground potential because a depletion layer that spreads toward the P-type well diffusion layer does not reach the boundary surface with an embedded oxide film. When a voltage is applied from a power supply voltage to the rear surface of the N-type semiconductor layer and a cathode electrode, the generation of leakage current unrelated to the control performed by the gate electrode can be suppressed because a channel region on the embedded oxide film side of a MOS-type transistor formed in the P-type semiconductor layer does not act.

IPC Classes  ?

• H01L 27/08 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including only semiconductor components of a single kind
• G01T 1/24 - Measuring radiation intensity with semiconductor detectors
• H01L 21/8234 - MIS technology
• H01L 27/088 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate
• H01L 29/786 - Thin-film transistors

Abstract

Provided is a muon monitoring system that obtains the μSR signal of positive muons produced by a particle beam that is at rest at the Bragg peak of a charged particle beam pulse such as a proton beam, and accurately grasps the radiation effect of a proton beam etc. for particle radiation therapy. Each time 230 MeV protons output from an accelerator are introduced and a proton beam pulse is output from an irradiation device (11) to expose a patient (human body (2)) undergoing therapy, a lead shield (4) uses a delayed signal to positionally and temporally select only delayed positrons, which occur due to the disappearance of the leading muons produced by the same protons at the Bragg peak in the body, and after information regarding the positron generation position and the time of the delay synchronization signal has been measured by the positron counters of a first position-sensitive positron counter plate (9) and by the positron counters of a second position-sensitive positron counter plate (10), and the delayed positrons have been measured, the measurement results are analyzed and the μSR signal, which is segmented at each positron generation location near the Bragg peak of a proton, is displayed on the screen of a display (8).

IPC Classes  ?

• A61N 5/10 - X-ray therapyGamma-ray therapyParticle-irradiation therapy

Abstract

Disclosed is an induction acceleration sector cyclotron which accelerates a charged particle beam in a sector cyclotron electromagnet array using an induced voltage. Further disclosed is an acceleration method for charged particle beams which can efficiently and practically accelerate cluster ions in cycles. The induction acceleration cyclotron comprises a sector cyclotron electromagnet array, and induction acceleration cells which are connected to vacuum chambers in the gaps between the sector electromagnets, and which apply an induced voltage to the charged particle beam. The induction acceleration cyclotron is characterized in that a positive induced voltage, which is synchronized with the charged particle beam travelling through the induction acceleration cells and which accelerates in the direction of movement of the charged particle beam, is applied to the charged particle beam. Furthermore, cluster ions can also be accelerated by using the induction acceleration cyclotron to accelerate the charged particle beam.

IPC Classes  ?

• H05H 13/00 - Magnetic resonance acceleratorsCyclotrons
• H05H 11/00 - Magnetic induction accelerators, e.g. betatrons

Abstract

To provide a manufacturing method of a superconducting radio-frequency acceleration cavity used in a charged particle accelerator enabling the manufacturing with few waste amounts of the niobium material at low cost in a short time, the manufacturing method has each of the steps of (a) obtaining an ingot made from a disk-shaped niobium material, (b) slicing and cutting the niobium ingot into a plurality of niobium plates each with a predetermined thickness, by vibrating multiple wires back and forth while spraying fine floating abrasive grains with the niobium ingot supported, (c) removing the floating abrasive grains adhered to the sliced niobium plates, and (d) performing deep draw forming on the niobium plates and thereby obtaining a niobium cell of a desired shape.

IPC Classes  ?

• H01L 39/24 - Processes or apparatus specially adapted for the manufacture or treatment of devices provided for in group or of parts thereof

Abstract

A method for manufacturing a high-frequency accelerator having a cylindrical section (1) constituting an acceleration cavity includes a temporary assembling step for temporarily assembling a plurality of constituent members (11 to 14) each having a shape in which the cylindrical section (1) is parted into the shape of the cylindrical section (1) by butting the plurality of constituent members (11 to 14) against one another, and a joining step for joining the plurality of constituent members (11 to 14) to one another. The temporary assembling step includes a step for disposing supporting members (21) which are in contact with the inner surface of the cylindrical section (1) so as to support the cylindrical section (1) from the inner side in the interior of the cylindrical section (1), and the joining step includes a step for joining the plurality of constituent members (11 to 14) by means of friction stir welding along butt lines (51) of the plurality of constituent members (11 to 14).

IPC Classes  ?

• H05H 9/00 - Linear accelerators

Abstract

Provided is a laser oscillation device that can stabilize resonation even when the finesse of an optical resonator is made to be high, and which can generate laser rays stronger than conventional devices by accumulating laser rays within the optical resonator. The laser oscillation device is provided with: an excitation laser light-source that generates laser rays for excitation; a rare-earth fiber that generates laser rays having the desired wavelength, when a laser ray generated by the excitation laser light-source is supplied thereto; an optical resonator that is composed of two concave mirrors arranged facing each other, or composed of a group of mirrors including multiple plane mirrors, and that accumulates laser rays generated by the rare-earth fiber; an optical isolator that is inserted between the optical resonator and the rare-earth fiber, guides laser rays coming out from the rare-earth fiber to one end of the optical resonator, and shuts off laser rays going in the opposite direction; and a circling optical path that takes in laser rays eradiated out from the other end of the optical resonator, returns the laser rays to the optical resonator via the rare-earth fiber and the optical isolator, and promotes the resonation.

IPC Classes  ?

• H01S 3/06 - Construction or shape of active medium
• H01S 3/082 - Construction or shape of optical resonators or components thereof comprising three or more reflectors defining a plurality of resonators, e.g. for mode selection or suppression
• H01S 3/098 - Mode locking; Mode suppression

Abstract

Provided is polarized laser oscillation capable of guiding laser light to a three-dimensional optical resonator to resonate right or left, and easily switching polarization between left and right. The polarized laser oscillation comprises: guiding the laser light to an optical resonator (4); revolving the laser light by a pair of flat mirrors (21, 22) and a pair of concave mirrors (23, 24) spatially arranged in the optical resonator (4), and applying a ramp driving voltage to the optical resonator (4) to deform a piezoelectric element (25), thereby adjusting an optical path length formed by the flat mirrors (21, 22) and the concave mirrors (23, 24); guiding the laser light transmitted through the flat mirror (21) to a zero-cross feedback signal generator (6) to determine whether a zero-crossing for right polarization and a zero-crossing for left polarization has been generated by a difference value between a P-polarized component and an S-polarized component of the laser light; and fixing, on the basis of a result of the determination, a voltage value of a driving voltage applied to the piezoelectric element (25) from a resonant controller (8), and causing the right-polarized or left-polarized laser light to resonate in the optical resonator (4).

IPC Classes  ?

• G02B 26/00 - Optical devices or arrangements for the control of light using movable or deformable optical elements
• H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating

Abstract

The invention provides a nondestructive inspection apparatus and nondestructive inspection method for inspecting the inside of a surface layer of a composite structure using cosmic-ray muons. The nondestructive inspection apparatus is to inspect the inside of the surface layer of a composite structure 11 using cosmic-ray muons 12 incoming substantially in the horizontal direction with being spin polarized by a given amount in the incoming direction, and has positron/electron amount detecting means 13 for detecting a positron/electron amount reflection-emitted having a characteristic time constant in the direction opposite to the incoming direction of the cosmic-ray muons 12 by the decay of the cosmic-ray muons 12 stopping inside the composite structure 11, and radiography data processing means 14, 15, 16 for data-processing a state of the second substance 11-2 different from the first substance 11-1 of the surface layer existing inside the surface layer of the composite structure 11 as radiography to output, from the positron/electron amount detected in the positron/electron detecting means 13.

IPC Classes  ?

• G01N 23/20 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using diffraction of the radiation by the materials, e.g. for investigating crystal structureInvestigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materialsInvestigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using reflection of the radiation by the materials

Abstract

Provided is a method for producing a superconducting radio-frequency acceleration cavity for use in a charged particle accelerator which can be produced in a short time at a low cost with a minimum amount of  niobium material to be discarded.  The method for producing a superconducting radio-frequency acceleration cavity comprises (a) a step for obtaining an ingot made of niobium material in the shape of a disk, (b) a step for slicing the niobium ingot into a plurality of niobium plates each having a predetermined thickness by vibrating a multiplex wire back and forth while blowing fine floating abrasive grains in a state where the niobium ingot is supported, (c) a step for removing the floating abrasive grains adhering to the niobium plates thus sliced, and a step (d) for forming a niobium cell of a desired shape by deep drawing the niobium plate.

IPC Classes  ?

• H05H 7/20 - CavitiesResonators with superconductive walls
• C22B 9/22 - Remelting metals with heating by wave energy or particle radiation
• C22B 34/24 - Obtaining niobium or tantalum

Abstract

A device for nondestructively examining the inside of the surface layer of a composite structure by using muons of cosmic rays and a nondestructive examination method are disclosed. The device is used for examining the inside of the surface layer of a composite structure (11) by using muons (12) of cosmic rays traveling generally horizontally and having spins polarized by predetermined degrees in the traveling direction. The device includes a positron/electron amount detecting means (13) for detecting the amount of positrons/electrons having characteristic time constants and reflected/emitted in the opposite direction to the direction of application of muons (12) when muons (12) which come to rest inside the composite structure (11) annihilate and radiography data processing means (14, 15, 16) for processing data relating to the state of a second substance (11-2) different from a first substance (11-1) of the surface layer present inside the surface layer of the composite structure (11) according to the detected amount of positrons/electron and outputting the state of the second substance (11-2) as a radiograph.

IPC Classes  ?

• G01N 23/22 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material
• G01B 15/04 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring contours or curvatures
• G01T 1/20 - Measuring radiation intensity with scintillation detectors
• G01T 1/29 - Measurement performed on radiation beams, e.g. position or section of the beamMeasurement of spatial distribution of radiation
• G01T 1/203 - Measuring radiation intensity with scintillation detectors the detector being made of plastics

Abstract

This invention provides a process for molding an amorphous perfluororesin and an optical element molded by the process. The process comprises (a) the step of dissolving an amorphous perfluororesin in a solvent, (b) the step of placing a solution of the amorphous perfluororesin in a first mold, (c) the step of heating the vessel containing the solution to volatilize the solvent and thus to form an amorphous perfluororesin in a plate form, and (d) the step of placing the amorphous perfluororesin formed in the plate form in a second mold, and pressing the second mold from one face side to the other face side while heating, whereby the amorphous perfluororesin is molded into a desired shape.

IPC Classes  ?

• B29C 43/34 - Feeding the material to the mould or the compression means
• B29C 33/38 - Moulds or coresDetails thereof or accessories therefor characterised by the material or the manufacturing process
• B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
• B29D 11/00 - Producing optical elements, e.g. lenses or prisms
• C08F 14/18 - Monomers containing fluorine
• G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
• B29K 27/12 - Use of polyvinylhalogenides as moulding material containing fluorine
• B29L 11/00 - Optical elements, e.g. lenses, prisms

Abstract

A medium region (S) is formed by filling a space between an outer tubular body (1a) and an inner tbular body (1b) with liquid xenon (2), and a pair of anode pads (11, 12) are arranged two-dimensionally at the opposite ends of the medium region (S) intersecting the incident direction of gamma rays. An intermediate electrode (10) is arranged between the pair of anode pads (11, 12) and a plurality of photomultipliers (5) are arranged two-dimensionally on the outer tubular body (1a). A gamma ray reaction point in the liquid region (S) is specified based on the signals outputted from the anode pads (11, 12) and the photomultipliers (5).

IPC Classes  ?

• G01T 1/20 - Measuring radiation intensity with scintillation detectors
• G01T 1/161 - Applications in the field of nuclear medicine, e.g. in vivo counting
• G01T 1/204 - Measuring radiation intensity with scintillation detectors the detector being a liquid
• G01T 1/28 - Measuring radiation intensity with secondary-emission detectors

Abstract

An induction accelerating cell and an induction accelerator are provided in a synchrotron, wherein the induction accelerating cell controls acceleration of an electrically-charged particle beam and the induction accelerator controls a generation timing of an induction voltage applied by the induction accelerating cell. An induction accelerator in a synchrotron is characterized in that the accelerator comprises an induction accelerating cell to apply an induction voltage, a switching power source to supply a pulse voltage to drive the induction accelerating cell through a transmission line, a DC charger to supply electric power to the switching power source, and an intelligent controller provided with a pattern generator to generate a gate signal pattern for turning-on-and-off control of the switching power source and a digital signal processor to control turning-on-and-off of a gate parent signal on which the gate signal pattern is based.

IPC Classes  ?

• H05H 13/04 - Synchrotrons

Abstract

There are provided a synchrotron oscillation frequency control device (5) for applying barrier voltage (9) in synchronization with rotation of a bunch (3) by an induction acceleration cell (6) and its control method. The synchrotron oscillation frequency control device (5) includes: an induction acceleration cell (6) for applying barrier voltage (9) to the bunch (3) in the synchrotron; and an intelligent control device (8) having a switching power supply (5b) for driving the induction acceleration cell (6), a pattern generator (8b) for generating a gate signal pattern (8a) for controlling ON/OFF of the switching power supply (5b), and a digital signal processing device (8d) for controlling ON/OFF of a gate parent signal (8c) from which the gate signal pattern (8a) derives.

IPC Classes  ?

• H05H 13/04 - Synchrotrons

Abstract

⏧PROBLEMS] To provide an induction voltage control device (8) capable of accelerating arbitrary charged particles to an arbitrary energy level in synchronization with any magnetic excitation pattern even for an acceleration voltage (9a) of constant voltage by an induction acceleration cell (6) for acceleration and its control method. ⏧MEANS FOR SOLVING PROBLEMS] An induction voltage control device (8) includes: a digital signal processing device (8d) for controlling a variable delay time according to a necessary variable delay time pattern obtained based on a magnetic excitation pattern, an equivalent acceleration voltage value pattern, and a passing signal (7a) of a bunch (3) from a bunch monitor (7); and a pattern generator (8b) for conversion to a gate signal pattern (8a) of a switching power source (5b). The induction voltage control device (8) controls a pulse density of the induction voltage (9) for acceleration per control unit. A control method of the induction voltage control device is also disclosed.

IPC Classes  ?

• H05H 13/04 - Synchrotrons

Abstract

An accelerator capable of accelerating all-species ions to an arbitrary energy level on the same accelerator. An all-species ion accelerator which uses the generating timing and applying time of an induction voltage applied, by a confining and accelerating induction acceleration cell used in an induction acceleration synchrotron, to an ion beam injected by a front-end accelerator to generate a confining and accelerating gate signal pattern by a confining and accelerating digital signal processor and a confining and accelerating pattern generator based on an ion beam passing signal, a position signal and an induction voltage signal used to recognized an induction voltage value applied to an ion beam, and feedback-controls the one/off of the confining and accelerating induction acceleration cell by a confining and accelerating intelligent control device.

IPC Classes  ?

• H05H 13/04 - Synchrotrons