JP7167322B2 - 放射線検出器及び放射線画像撮影装置 - Google Patents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
- A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
- A61B6/4233—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using matrix detectors
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/10—Safety means specially adapted therefor
- A61B6/102—Protection against mechanical damage, e.g. anti-collision devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
- A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
- A61B6/4283—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by a detector unit being housed in a cassette
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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
-
- 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
- G01T1/20188—Auxiliary details, e.g. casings or cooling
- G01T1/20189—Damping or insulation against damage, e.g. caused by heat or pressure
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- G—PHYSICS
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- 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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Description
また、本開示の第11の態様の放射線画像撮影装置は、放射線から変換された光に応じて発生した電荷を蓄積する複数の画素が可撓性の基材の画素領域に形成されたセンサ基板と、基材の画素領域が設けられた面に設けられ、かつ放射線を光に変換する変換層と、センサ基板と変換層とが積層された積層体の放射線が照射される側と反対側に設けられた吸収層と、吸収層の積層体に対向する側と反対側に設けられ、センサ基板よりも剛性が高い剛性板と、を備えた放射線検出器が、放射線が照射される側から積層体、吸収層、及び剛性板の順に収納された筐体と、吸収層と積層体の間に設けられた補強基板と、を備える。
10、10X 放射線検出器
11 基材、11A 第1の面、11B 第2の面、11P 微粒子、11L 微粒子層
12 センサ基板
14 変換層、14A 柱状結晶
19 積層体
30 画素
32 スイッチング素子(TFT)
34 センサ部
35 画素領域
36 信号配線
38 走査配線
39 共通配線
40 粘着層
42 反射層
44 接着層
46 保護層
50 補強基板
52 吸収層
54 放射線遮蔽層
56 剛性板
60 帯電防止層
62 保護層
90 気泡
92、96A、96B、96C 凹凸
103 駆動部
104 信号処理部
108 電源部
110 制御基板
112 フレキシブルケーブル
114 電源線
117 保護層
120 筐体、120A 天板、120B 境界部
150 緩衝材
380 画像メモリ
382 制御部
A、B、C 領域
P 積層方向
R 放射線
Claims (11)
- 放射線から変換された光に応じて発生した電荷を蓄積する複数の画素が可撓性の基材の画素領域に形成されたセンサ基板と、
前記基材の前記画素領域が設けられた面に設けられ、かつ前記放射線を光に変換する変換層と、
前記センサ基板と前記変換層とが積層された積層体の前記放射線が照射される側と反対側に設けられ、かつ前記変換層に生じる凹凸の前記センサ基板への影響を吸収する吸収層と、
前記吸収層の前記積層体に対向する側と反対側に設けられ、前記センサ基板よりも剛性が高い剛性板と、
を備えた放射線検出器が、
放射線が照射される側から前記積層体、前記吸収層、及び前記剛性板の順に収納された筐体と、
前記吸収層と前記積層体の間に設けられ、前記吸収層に係る圧縮力を前記吸収層の面内方向に分散させる補強基板と、
を備えた、
放射線画像撮影装置。 - 前記吸収層のデュロメータ硬度は、前記積層体全体のデュロメータ硬度よりも小さい、
請求項1に記載の放射線画像撮影装置。 - 前記吸収層は、表面抵抗値が1013Ω以下である、
請求項1または請求項2に記載の放射線画像撮影装置。 - 前記補強基板は、曲げ弾性率が150MPa以上、2500MPa以下である、
請求項1から請求項3のいずれか1項に記載の放射線画像撮影装置。 - 前記補強基板は、曲げ剛性が540Pacm4以上、140000Pacm4以下である、
請求項1から請求項4のいずれか1項に記載の放射線画像撮影装置。 - 前記吸収層と、前記剛性板との間に、前記放射線を遮蔽する放射線遮蔽層をさらに備えた、
請求項1から請求項5のいずれか1項に記載の放射線画像撮影装置。 - 前記剛性板は、カーボンを材料とした板である、
請求項1から請求項6のいずれか1項に記載の放射線画像撮影装置。 - 前記積層体の、前記放射線が入射される側に、緩衝材をさらに備える、
請求項1から請求項7のいずれか1項に記載の放射線画像撮影装置。 - 前記変換層は、CsIの柱状結晶を含む、
請求項1から請求項8のいずれか1項に記載の放射線画像撮影装置。 - 前記複数の画素に蓄積された電荷を読み出すための制御信号を出力する制御部と、
前記制御信号に応じて前記複数の画素から電荷を読み出させる駆動部と、
前記複数の画素から読み出された電荷に応じた電気信号が入力され、入力された電気信号に応じた画像データを生成して前記制御部に出力する信号処理部と、
をさらに備えた、請求項1から請求項9のいずれか1項に記載の放射線画像撮影装置。 - 放射線から変換された光に応じて発生した電荷を蓄積する複数の画素が可撓性の基材の画素領域に形成されたセンサ基板と、
前記基材の前記画素領域が設けられた面に設けられ、かつ前記放射線を光に変換する変換層と、
前記センサ基板と前記変換層とが積層された積層体の前記放射線が照射される側と反対側に設けられた吸収層と、
前記吸収層の前記積層体に対向する側と反対側に設けられ、前記センサ基板よりも剛性が高い剛性板と、
を備えた放射線検出器が、
放射線が照射される側から前記積層体、前記吸収層、及び前記剛性板の順に収納された筐体と、
前記吸収層と前記積層体の間に設けられた補強基板と、
を備えた、
放射線画像撮影装置。
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JP2008212343A (ja) | 2007-03-02 | 2008-09-18 | General Electric Co <Ge> | 軽量で頑丈なディジタルx線検出器 |
JP2012128091A (ja) | 2010-12-14 | 2012-07-05 | Fujifilm Corp | 放射線画像撮影装置 |
JP2014006233A (ja) | 2011-07-20 | 2014-01-16 | Fujifilm Corp | 放射線撮像装置 |
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JP3815766B2 (ja) | 1998-01-28 | 2006-08-30 | キヤノン株式会社 | 二次元撮像装置 |
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CN113767306B (zh) | 2024-03-26 |
CN113767306A (zh) | 2021-12-07 |
JPWO2020218538A1 (ja) | 2020-10-29 |
EP3961269A1 (en) | 2022-03-02 |
US20220082714A1 (en) | 2022-03-17 |
WO2020218538A1 (ja) | 2020-10-29 |
EP3961269A4 (en) | 2022-06-01 |
TW202105756A (zh) | 2021-02-01 |
US11747490B2 (en) | 2023-09-05 |
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