JP2022094011A - 放射線検出器およびx線ct装置 - Google Patents
放射線検出器およびx線ct装置 Download PDFInfo
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- 238000006243 chemical reaction Methods 0.000 description 3
- 238000009206 nuclear medicine Methods 0.000 description 3
- 238000002600 positron emission tomography Methods 0.000 description 3
- 238000002603 single-photon emission computed tomography Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 241001669679 Eleotris Species 0.000 description 2
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- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
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- 239000004973 liquid crystal related substance Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/202—Measuring radiation intensity with scintillation detectors the detector being a crystal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/2018—Scintillation-photodiode combinations
- G01T1/20183—Arrangements for preventing or correcting crosstalk, e.g. optical or electrical arrangements for correcting crosstalk
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/2002—Optical details, e.g. reflecting or diffusing layers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/2018—Scintillation-photodiode combinations
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14643—Photodiode arrays; MOS imagers
- H01L27/14658—X-ray, gamma-ray or corpuscular radiation imagers
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Abstract
Description
に関する。
20 シンチレータ
21 シンチレータ素子
22 誘電体多層膜
23 金属反射層
30 光検出器
31 光検出素子
100 X線CT装置
212 X線検出器
Claims (8)
- 2次元格子状に配置された複数のシンチレータ素子と、
隣り合う前記シンチレータ素子の間で、当該シンチレータ素子に隣接して設けられた誘電体多層膜と、
隣り合う前記誘電体多層膜の間に設けられた金属反射層と、
を備えた放射線検出器。 - 2次元格子状に配列された複数の光検出素子を有する光検出器と、
2次元格子状に配列された複数のシンチレータ素子を有するシンチレータであって、前記複数のシンチレータ素子のそれぞれは、入射放射線を受ける第1の端面と、前記複数の光検出素子のそれぞれに光学的に結合された第2の端面と、前記第1の端面および前記第2の端面の間に延在する側壁と、を有する、シンチレータと、
前記複数のシンチレータ素子のそれぞれの前記側壁の周りに積層され、前記シンチレータ素子のシンチレータ光を反射する誘電体多層膜と、
前記誘電体多層膜の周りに積層され、前記誘電体多層膜を透過した前記シンチレータ光を反射する金属反射層と、
を備えた放射線検出器。 - 前記複数のシンチレータ素子は、
前記複数のシンチレータ素子のそれぞれの金属反射層どうしを接合することによって、2次元格子状に配列される、
請求項2記載の放射線検出器。 - 前記金属反射層どうしは、常温接合により接合される、
請求項3記載の放射線検出器。 - 前記常温接合は、
原子拡散接合または表面活性化接合のいずれかである、
請求項4記載の放射線検出器。 - 前記金属反射層は、
放射線遮蔽効果を有する重金属により構成される、
請求項1ないし5のいずれか1項に記載の放射線検出器。 - 前記誘電体多層膜は、
前記複数のシンチレータ素子のそれぞれの側壁の周りに、屈折率の異なる2種の誘電体層の組を前記側壁の法線方向に複数積層されて形成される、
請求項1ないし6のいずれか1項に記載の放射線検出器。 - 前記放射線検出器はX線検出器であり、
X線を発生するX線源と、
被検体を透過した前記X線を検出する請求項1ないし7のいずれか1項に記載の前記放射線検出器と、
を備えたX線CT装置。
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JP2020206781A JP7514752B2 (ja) | 2020-12-14 | 2020-12-14 | 放射線検出器およびx線ct装置 |
US17/643,932 US20220187479A1 (en) | 2020-12-14 | 2021-12-13 | Radiation detector and x-ray ct apparatus |
EP21214363.0A EP4012459A1 (en) | 2020-12-14 | 2021-12-14 | Radiation detector and x-ray ct apparatus |
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JP2022094011A true JP2022094011A (ja) | 2022-06-24 |
JP7514752B2 JP7514752B2 (ja) | 2024-07-11 |
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EP (1) | EP4012459A1 (ja) |
JP (1) | JP7514752B2 (ja) |
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Publication number | Priority date | Publication date | Assignee | Title |
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US12013503B2 (en) * | 2022-10-07 | 2024-06-18 | Cintilight, Llc | Lateral crystal photodiode readouts and switched diode networks for processing nuclear events |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US5208460A (en) * | 1991-09-23 | 1993-05-04 | General Electric Company | Photodetector scintillator radiation imager having high efficiency light collection |
US6516044B1 (en) * | 2001-10-23 | 2003-02-04 | Ge Medical Systems Global Technology Co., Llc | Scintillation apparatus and method of light collection for use with a radiation emitting medical imaging scanner |
US20100127180A1 (en) | 2008-11-24 | 2010-05-27 | Cmt Medical Technologies Ltd. | Scintillator array and a method of constructing the same |
JP2017133894A (ja) | 2016-01-26 | 2017-08-03 | 株式会社東芝 | シンチレータアレイ、それを用いたx線検出器およびx線検査装置 |
US10234571B1 (en) * | 2016-10-31 | 2019-03-19 | Triad National Security, Llc | Radiation detector |
JP7108196B2 (ja) * | 2019-12-26 | 2022-07-28 | 日亜化学工業株式会社 | 発光装置、波長変換部材の製造方法及び発光装置の製造方法 |
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- 2021-12-13 US US17/643,932 patent/US20220187479A1/en active Pending
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US20220187479A1 (en) | 2022-06-16 |
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