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Found results for
 patents
1.
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DETECTOR FOR INCIDENT RADIATION
| Application Number |
SE2019050017 |
| Publication Number |
2019/147177 |
| Status |
In Force |
| Filing Date |
2019-01-14 |
| Publication Date |
2019-08-01 |
| Owner |
C-RAD IMAGING AB (Sweden)
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| Inventor |
- Norberg, Gunnar
- Munoz, Daniel
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Abstract
A detector (100) comprises an upstream ionization chamber (110), a downstream detector chamber (120) and a signal processor (160). The ionization chamber (110) comprises a first electrode (111), a second electrode (112) and an ionization chamber gas (114). The detector chamber (120) comprises a converter unit (130) adapted to convert incident radiation (6) into electrons (8), an electron amplification device (140) adapted to produce further electrons (9) from the electrons (8), a read-out device (150) adapted to generate a signal representative of the incident radiation (6),and a detector chamber gas (121). The signal processor (160) is adapted to generate a corrected signal by processing the signal representative of the incident radiation (6) based on a current signal representative of an ionization current measured between the first electrode (111) and the second electrode (112) and induced by the incident radiation (6).
IPC Classes ?
- G01T 1/18 - Measuring radiation intensity with counting-tube arrangements, e.g. with Geiger counters
- G01T 1/28 - Measuring radiation intensity with secondary-emission detectors
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2.
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Detector for incident radiation
| Application Number |
15880612 |
| Grant Number |
10134571 |
| Status |
In Force |
| Filing Date |
2018-01-26 |
| First Publication Date |
2018-11-20 |
| Grant Date |
2018-11-20 |
| Owner |
C-Rad Imaging AB (Sweden)
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| Inventor |
- Norberg, Gunnar
- Muñoz, Daniel
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Abstract
A detector (100) comprises an upstream ionization chamber (110), a downstream detector chamber (120) and a signal processor (160). The ionization chamber (110) comprises a first electrode (111), a second electrode (112) and an ionization chamber gas (114). The detector chamber (120) comprises a converter unit (130) adapted to convert incident radiation (6) into electrons (8), an electron amplification device (140) adapted to produce further electrons (9) from the electrons (8), a read-out device (150) adapted to generate a signal representative of the incident radiation (6) and a detector chamber gas (121). The signal processor (160) is adapted to generate a corrected signal by processing the signal representative of the incident radiation (6) based on a current signal representative of an ionization current measured between the first electrode (111) and the second electrode (112) and induced by the incident radiation (6).
IPC Classes ?
- H01J 47/02 - Ionisation chambers
- G01T 1/28 - Measuring radiation intensity with secondary-emission detectors
- H04N 5/32 - Transforming X-rays
- H01J 31/08 - Cathode-ray tubesElectron-beam tubes having a screen on or from which an image or pattern is formed, picked-up, converted, or stored
- G01T 1/185 - Measuring radiation intensity with ionisation-chamber arrangements
- G06T 1/00 - General purpose image data processing
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3.
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Converter unit
| Application Number |
15824075 |
| Grant Number |
10067241 |
| Status |
In Force |
| Filing Date |
2017-11-28 |
| First Publication Date |
2018-03-29 |
| Grant Date |
2018-09-04 |
| Owner |
C-RAD IMAGING AB (Sweden)
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| Inventor |
- Maad, Kristofer
- Norberg, Gunnar
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Abstract
A converter unit configured to convert incident photons into electrons comprises multiple blind holes forming respective ionization chambers. The converter unit is preferably arranged in a detector, such as X-ray detector or absolute radiation dose measurement detector, additionally comprising an electron amplification device and/or a readout device.
IPC Classes ?
- H01J 47/00 - Tubes for determining the presence, intensity, density or energy of radiation or particles
- G01T 1/185 - Measuring radiation intensity with ionisation-chamber arrangements
- G01T 1/29 - Measurement performed on radiation beams, e.g. position or section of the beamMeasurement of spatial distribution of radiation
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4.
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PHOTON CONVERTER UNIT COMPRISING BLIND HOLES, AND DETECTOR COMPRISING SUCH A CONVERTER UNIT
| Application Number |
SE2014051000 |
| Publication Number |
2015/034419 |
| Status |
In Force |
| Filing Date |
2014-09-01 |
| Publication Date |
2015-03-12 |
| Owner |
C-RAD IMAGING AB (Sweden)
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| Inventor |
- Maad, Kristofer
- Norberg, Gunnar
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Abstract
A converter unit (1, 2, 3) configured to convert incident photons (100) into electrons (110) comprises multiple blind holes (16) forming respective ionization chambers. The converter unit (1, 2, 3) is preferably arranged in a detector (4, 5, 6, 7), such as X-ray detector or absolute radiation dose measurement 5 detector, additionally comprising an electron amplification device (40) and/or a readout device (60).
IPC Classes ?
- H01J 47/02 - Ionisation chambers
- G01T 1/29 - Measurement performed on radiation beams, e.g. position or section of the beamMeasurement of spatial distribution of radiation
- G01T 1/14 - Electrostatic dosimeters
- G01T 1/185 - Measuring radiation intensity with ionisation-chamber arrangements
- G01T 1/28 - Measuring radiation intensity with secondary-emission detectors
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5.
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Converter unit
| Application Number |
14017656 |
| Grant Number |
09851452 |
| Status |
In Force |
| Filing Date |
2013-09-04 |
| First Publication Date |
2015-03-05 |
| Grant Date |
2017-12-26 |
| Owner |
C-RAD IMAGING AB (Sweden)
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| Inventor |
- Maad, Kristofer
- Norberg, Gunnar
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Abstract
A converter unit configured to convert incident photons into electrons comprises multiple blind holes forming respective ionization chambers. In additional embodiments, the converter unit is arranged in a detector, such as an X-ray detector or absolute radiation dose measurement detector, additionally comprising an electron amplification device and/or a readout device.
IPC Classes ?
- G01T 1/18 - Measuring radiation intensity with counting-tube arrangements, e.g. with Geiger counters
- G01T 1/185 - Measuring radiation intensity with ionisation-chamber arrangements
- G01T 1/29 - Measurement performed on radiation beams, e.g. position or section of the beamMeasurement of spatial distribution of radiation
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