An x-ray emitter device optimized for heat dissipation and durability. A heat dissipation element, featuring a diamond layer encapsulated by tungsten, dissipates heat from the focal point and prevents anode overheating. A reflective anode target may consist of a tungsten disk on a copper block, with configurations allowing part of the disk to overhang for enhanced heat dispersion. A method for fabricating a reflecting anode target disk is described for enhancing thermal management and device longevity.
B21D 53/02 - Making other particular articles heat exchangers, e.g. radiators, condensers
H01J 19/24 - Cold cathodes, e.g. field-emissive cathode
B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
2.
SYSTEM AND METHOD FOR GENERATING X-RAYS AT MULTIPLE ENERGY LEVELS BY A SINGLE DEVICE
Systems and methods for generating X-rays at multiple energy levels by a single device are disclosed. The system comprises a vacuum tube, an anode target and multiple electron emitters. Each of the multiple switchable electron emitters are maintained at a different potential difference from the anode target. Each switchable electron emitter may be activated individually to produce X-rays with characteristic power levels as required.
G01N 23/087 - 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 using polyenergetic X-rays
H05G 1/24 - Obtaining pulses by using energy storage devices
3.
SYSTEMS AND METHODS FOR REGULATING HIGH VOLTAGE SUPPLY OF AN X-RAY SOURCE
Systems and methods are provided for regulating a high voltage supply of an x-ray source, where the regulating is achieved by selectively activating a low voltage signal to an electron emitting cathode when a monitored high voltage is determined to be at a voltage that is within a required range of values.
Apparatuses and methods for prolonging longevity of cold cathode X-ray emission tubes by reducing a leakage current between a gate electrode and a cathode electrode of an electron emitter array chip. Sputterproofing elements, such as barrier notches within cavity walls or isolation layers of insulating materials encapsulating cavity walls and the gate electrode, prevent a conductive path forming on interlevel dielectric layer (ILD) cavity walls over time due to deposition of conducting material sputtered from the emitter tips upon the ILD wall surface.
Systems and methods for improving x-ray sources with pulsed x-ray sources arranged in a movable arc around a central axis. Improved systems may use the functionality of the switchable x-ray sources in various configurations to provide imaging with controlled exposure of a subject to x-rays.
A chip mounted field emitter array method for their fabrication by applying sintering to bind a substrate die to other die layers. Metal powder is applied to the bonding surface of the die, covered with the chip carrier or chip and compressed between two heated plates. The bonding pads of the die may be conductively coupled to corresponding bonding pads of the other die layers.
Material of an object is detected by an x-ray imaging device capturing a sample set of x-ray images at various anode voltages comparing the x-ray images and using differences between the x-ray images of the sample set to determine material of an imaged object. A composite image is synthesized of the object from the x-ray images representing different materials constructing the object
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
A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
A61B 6/40 - Arrangements for generating radiation specially adapted for radiation diagnosis
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
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
Goods & Services
X-ray apparatus not for medical purposes; X-ray tubes not
for medical purposes; computer programs and software for
image processing; electronic imaging devices; image
processing software. X-ray apparatus for medical purposes; X-ray diagnostic
apparatus; medical imaging apparatus; X-ray apparatus for
dental imaging; X-ray tubes for medical purposes; diagnostic
imaging apparatus for medical purposes.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
Goods & Services
X-ray apparatus not for medical purposes; X-ray tubes not for medical purposes; Downloadable computer programs and software for processing images; image processing software, namely, downloadable computer software for processing digital images X-ray apparatus for medical purposes; X-ray diagnostic apparatus; medical imaging apparatus; X-ray apparatus for dental imaging; X-ray tubes for medical purposes; Electromagnetic medical diagnostic imaging apparatus
10.
Systems and methods for improving x-ray sources with switchable electron emitters
Systems and methods for improving x-ray sources with switchable electron emitters. Improved systems may use the functionality of the switchable electron emitters in various configurations to provide power regulation, multidimensional analysis, and electron beam forming so as to increase the durability and the reliability of the system. Cooling mechanisms may be used to further protect the anode from deterioration over time.
A method for fabricating silicon die stacks for electron emitter chips by applying sintering to bind a silicon substrate die to other die layers. Metal powder is applied to the bonding surface of the die, covered with the chip carrier or chip and compressed between two heated plates. The bonding pads of the die may be conductively coupled to corresponding bonding pads of the other die layers.
Material of an object is detected by an x-ray imaging device capturing a sample set of x-ray images at various anode voltages comparing the x-ray images and using differences between the x-ray images of the sample set to determine material of an imaged object. A composite image is synthesized of the object from the x-ray images representing different materials constructing the object.
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
G01N 23/046 - 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 using tomography, e.g. computed tomography [CT]
H05G 1/46 - Combined control of different quantities, e.g. exposure time as well as voltage or current
13.
SYSTEMS AND METHODS FOR FABRICATING SILICON DIE STACKS FOR ELECTRON EMITTER ARRAY CHIPS
A method for fabricating silicon die stacks for electron emitter chips by applying sintering to bind a silicon substrate die to other die layers. Metal powder is applied to the bonding surface of the die, covered with the chip carrier or chip and compressed between two heated plates. The bonding pads of the die may be conductively coupled to corresponding bonding pads of the other die layers.
H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or
H01L 21/44 - Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups
H01L 21/60 - Attaching leads or other conductive members, to be used for carrying current to or from the device in operation
H01L 23/32 - Holders for supporting the complete device in operation, i.e. detachable fixtures
14.
SYSTEMS AND METHODS FOR IMPROVING X-RAY SOURCES WITH SWITCHABLE ELECTRON EMITTERS
Systems and methods for improving x-ray sources with switchable electron emitters. Improved systems may use the functionality of the switchable electron emitters in various configurations to provide power regulation, multidimensional analysis, and electron beam forming so as to increase the durability and the reliability of the system. Cooling mechanisms may be used to further protect the anode from deterioration over time.
Systems and methods for digitally switching x-ray emission systems include a digital switching unit operable to selectively connect a low voltage driving circuit to activate a field emission type electron emitting construct such that electrons are accelerated by a high voltage towards an anode target thereby generating a pulse of x-rays. The x-ray pulses directed towards a scintillator are detected by an optical imager when its shutter is open. Shutter signals and the activation signals may be synchronized to produce required x-ray detection profiles.
A robust cold cathode uses an electron emitting construct design possibly for an x-ray emitter device. The electron beam emitted by the emitting construct is focused and accelerated by an electrical field towards an electron anode target. A shield is provided to prevent a cold cathode from being damaged by ion bombardment in high-voltage applications and a non-emitter zone may provide a robust ion bombardment zone. The system is further configured to provide an angled target anode or a stepped target anode to further reduce the ion bombardment damage.
Controlling total emission current of an electron emitting construct in an x-ray emitting device by providing a cathode, providing multiple active areas each active area having a gated cone electron source, including multiple emitter tips arranged in an array, a gate electrode, and a gate interconnect lead connected to the gate electrode, providing an x-ray emitting construct comprising an anode, the anode being an x-ray target, situating the x-ray emitting construct facing the active areas face each other, selecting a set of active areas, and activating selected active areas by conductively connecting a voltage source to their associated the gate electrode interconnect lead.
H01J 29/46 - Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
H01J 31/12 - Image or pattern display tubes, i.e. having electrical input and optical outputFlying-spot tubes for scanning purposes with luminescent screen
G01N 23/046 - 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 using tomography, e.g. computed tomography [CT]
G01T 1/161 - Applications in the field of nuclear medicine, e.g. in vivo counting
An electron emitting construct design of an x-ray emitter device is disclosed configured to facilitate radiation in the X-ray spectrum and further relates to preventing a cold cathode from being damaged by ion bombardment in high-voltage applications. The electron beam emitted by the emitting construct is focused and accelerated by an electrical field towards an electron anode target operable to attract electron beam to an associated focal spot, wherein the generated ions are accelerated along a trajectory perpendicular to the electric field in parallel to the surface of the electron anode target. More specifically, the present invention relates to realizing a robust cold cathode to avoid ion bombardments damages in high-voltage applications, by means of setting non-emitter zone surrounded by or set between the emitter areas. The system is further configured to provide an angled target anode or a stepped target anode to further reduce the ion bombardment damage.
An image capture device and an x-ray emitting device are introduced comprising an electron receiving construct and an electron emitting construct separated by a spacer. The electron receiving construct comprises a faceplate, an anode and an inward facing photoconductor. The electron emitting construct comprises: a backplate; a substrate; a cathode; a plurality of field emission type electron sources arranged in an array; a stratified resistive layer between the field emission type electron source and the cathode; a gate electrode; a focus structure and a gate electrode support structure configured to support the gate electrode at a required cathode-gate spacing from the cathode.
The disclosure relates to an image capture device comprising an electron receiving construct and an electron emitting construct, and further comprising an inner gap providing an unobstructed space between the electron emitting construct and the electron receiving construct. The disclosure further relates to an x-ray emitting device comprising an x-ray emitting construct and an electron emitting construct, said x-ray emitting construct comprising an anode, the anode being an x-ray target, wherein the x-ray emitting device may comprise an inner gap providing an unobstructed space between the electron emitting construct and the x-ray emitting construct. The disclosure further relates to an x-ray imaging system comprising an image capture device and an x-ray emitting device.
H01J 35/14 - Arrangements for concentrating, focusing, or directing the cathode ray
G01N 23/046 - 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 using tomography, e.g. computed tomography [CT]
H01J 29/46 - Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
H01J 31/12 - Image or pattern display tubes, i.e. having electrical input and optical outputFlying-spot tubes for scanning purposes with luminescent screen
G01T 1/161 - Applications in the field of nuclear medicine, e.g. in vivo counting
