JP2020005928A - X線検出器及びx線ct装置 - Google Patents
X線検出器及びx線ct装置 Download PDFInfo
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- JP2020005928A JP2020005928A JP2018130217A JP2018130217A JP2020005928A JP 2020005928 A JP2020005928 A JP 2020005928A JP 2018130217 A JP2018130217 A JP 2018130217A JP 2018130217 A JP2018130217 A JP 2018130217A JP 2020005928 A JP2020005928 A JP 2020005928A
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- 230000003287 optical effect Effects 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000000758 substrate Substances 0.000 claims description 36
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 12
- 238000012545 processing Methods 0.000 description 17
- 238000001514 detection method Methods 0.000 description 15
- 230000006870 function Effects 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
- G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/30—Accessories, mechanical or electrical features
- G01N2223/308—Accessories, mechanical or electrical features support of radiation source
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/30—Accessories, mechanical or electrical features
- G01N2223/31—Accessories, mechanical or electrical features temperature control
- G01N2223/3103—Accessories, mechanical or electrical features temperature control cooling, cryostats
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/30—Accessories, mechanical or electrical features
- G01N2223/313—Accessories, mechanical or electrical features filters, rotating filter disc
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/50—Detectors
- G01N2223/505—Detectors scintillation
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pulmonology (AREA)
- Radiology & Medical Imaging (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Measurement Of Radiation (AREA)
Abstract
Description
図1に示すように、X線CT装置1は、架台装置10と、寝台装置30と、コンソール装置40と、を有する。図1では架台装置10に挿入される被検体Pの位置関係を説明するため、架台装置10を複数描画している。
図2は、X線管11とX線検出器12との位置関係を示す説明図である。なお、X線検出器12の円弧に沿う方向をチャネル方向とし、チャネル方向に直交し、天板33の長軸方向に移動する方向と平行となる方向をスライス方向(z軸方向)とする。
11 X線管
12 X線検出器
13 回転フレーム
19 第1のサポート板
20 セパレータ
21 X線検出素子
22 シンチレータ
23 光センサアレイ
24 基板
25 第2のサポート板
26 保持容器
Claims (5)
- X線を受けて電気信号を発生する光センサアレイと、
前記電気信号をA/D変換する素子を少なくとも備える基板と、
散乱線除去のためのセパレータを保持する第1のサポート板と、
前記第1のサポート板より熱伝導率の高い材料で形成され、前記基板と少なくとも一部を接して設けられる第2のサポート板と、
を有するX線検出器。 - 第2のサポート板は、第1のサポート板の外側に配置されて、下面で前記基板と接する、
請求項1に記載のX線検出器。 - 第2のサポート板は、前記基板を収容する保持容器に接して設けられて、前記基板で発生した熱を保持容器に拡散させる、
請求項1または請求項2に記載のX線検出器。 - 前記保持容器は、外気と接する表面積を増加させるヒートシンクを備える、
請求項3に記載のX線検出器。 - X線を照射するX線管と、
請求項1から4のいずれか一項に記載のX線検出器と、
X線管とX線検出器とを対向支持して、X線管とX線検出器とを回転させる回転フレームと、
を有するX線CT装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018130217A JP7094808B2 (ja) | 2018-07-09 | 2018-07-09 | X線検出器及びx線ct装置 |
US16/504,089 US10823684B2 (en) | 2018-07-09 | 2019-07-05 | X-ray detector and X-ray CT apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018130217A JP7094808B2 (ja) | 2018-07-09 | 2018-07-09 | X線検出器及びx線ct装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020005928A true JP2020005928A (ja) | 2020-01-16 |
JP7094808B2 JP7094808B2 (ja) | 2022-07-04 |
Family
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JP2018130217A Active JP7094808B2 (ja) | 2018-07-09 | 2018-07-09 | X線検出器及びx線ct装置 |
Country Status (2)
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US (1) | US10823684B2 (ja) |
JP (1) | JP7094808B2 (ja) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11295432A (ja) * | 1998-04-15 | 1999-10-29 | Shimadzu Corp | Ct用固体検出器 |
JP2001174566A (ja) * | 1999-12-15 | 2001-06-29 | Ge Yokogawa Medical Systems Ltd | Ct用固体検出器 |
JP2002034968A (ja) * | 2000-07-25 | 2002-02-05 | Toshiba Corp | X線ct装置 |
JP2004057834A (ja) * | 2002-07-30 | 2004-02-26 | Ge Medical Systems Global Technology Co Llc | 熱電制御されたx線検知器アレイ |
JP2005283441A (ja) * | 2004-03-30 | 2005-10-13 | Toshiba Corp | 放射線検出器 |
JP2008168056A (ja) * | 2007-01-15 | 2008-07-24 | Toshiba Corp | コリメータ、x線検出装置、x線コンピュータ断層撮影装置及びコリメータの製造方法 |
JP2015000291A (ja) * | 2013-06-18 | 2015-01-05 | 浜松ホトニクス株式会社 | 放射線検出ユニットの製造方法 |
JP2015104667A (ja) * | 2013-11-29 | 2015-06-08 | ゼネラル・エレクトリック・カンパニイ | 放射線検出装置及び放射線断層撮影装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10146332A (ja) | 1996-11-15 | 1998-06-02 | Hitachi Medical Corp | X線ct装置 |
EP1699422A4 (en) * | 2003-12-31 | 2009-04-29 | Univ South Carolina | THIN-FILED POROUS OPTICAL SENSORS FOR GASES AND OTHER LIQUIDS |
DE102005014187B4 (de) | 2005-03-29 | 2017-02-23 | Siemens Healthcare Gmbh | Detektormodul, Detektor und Computertomographiegerät |
-
2018
- 2018-07-09 JP JP2018130217A patent/JP7094808B2/ja active Active
-
2019
- 2019-07-05 US US16/504,089 patent/US10823684B2/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11295432A (ja) * | 1998-04-15 | 1999-10-29 | Shimadzu Corp | Ct用固体検出器 |
JP2001174566A (ja) * | 1999-12-15 | 2001-06-29 | Ge Yokogawa Medical Systems Ltd | Ct用固体検出器 |
JP2002034968A (ja) * | 2000-07-25 | 2002-02-05 | Toshiba Corp | X線ct装置 |
JP2004057834A (ja) * | 2002-07-30 | 2004-02-26 | Ge Medical Systems Global Technology Co Llc | 熱電制御されたx線検知器アレイ |
JP2005283441A (ja) * | 2004-03-30 | 2005-10-13 | Toshiba Corp | 放射線検出器 |
JP2008168056A (ja) * | 2007-01-15 | 2008-07-24 | Toshiba Corp | コリメータ、x線検出装置、x線コンピュータ断層撮影装置及びコリメータの製造方法 |
JP2015000291A (ja) * | 2013-06-18 | 2015-01-05 | 浜松ホトニクス株式会社 | 放射線検出ユニットの製造方法 |
JP2015104667A (ja) * | 2013-11-29 | 2015-06-08 | ゼネラル・エレクトリック・カンパニイ | 放射線検出装置及び放射線断層撮影装置 |
Also Published As
Publication number | Publication date |
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US20200011813A1 (en) | 2020-01-09 |
US10823684B2 (en) | 2020-11-03 |
JP7094808B2 (ja) | 2022-07-04 |
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