JP5743420B2 - X線ct装置 - Google Patents
X線ct装置 Download PDFInfo
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- JP5743420B2 JP5743420B2 JP2010097330A JP2010097330A JP5743420B2 JP 5743420 B2 JP5743420 B2 JP 5743420B2 JP 2010097330 A JP2010097330 A JP 2010097330A JP 2010097330 A JP2010097330 A JP 2010097330A JP 5743420 B2 JP5743420 B2 JP 5743420B2
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- Prior art keywords
- ray
- photodiode
- scintillator
- pds
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- 238000001514 detection method Methods 0.000 description 16
- 238000012545 processing Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 8
- 230000005855 radiation Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
-
- 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
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
-
- 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
- A61B6/4291—Arrangements for detecting radiation specially adapted for radiation diagnosis the detector being combined with a grid or grating
-
- 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
- G01T1/161—Applications in the field of nuclear medicine, e.g. in vivo counting
- G01T1/164—Scintigraphy
- G01T1/1641—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras
- G01T1/1644—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras using an array of optically separate scintillation elements permitting direct location of scintillations
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- High Energy & Nuclear Physics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Biophysics (AREA)
- Public Health (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Radiology & Medical Imaging (AREA)
- Pulmonology (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Measurement Of Radiation (AREA)
Description
11 スキャナ装置
12 画像処理装置
22 X線検出器
24 DASユニット
26 コントローラ
41 コリメータユニット
42 シンチレータユニット
43 PD
44 DAS
61 ライトガイド
62 係合用フレーム
63 係合用ステー
Claims (5)
- X線を発生するX線源と、
前記X線に基づいて電気信号を取得するX線検出器と、を備え、
前記X線検出器は、
前記X線に基づいて蛍光を発するシンチレータと、
前記蛍光を前記電気信号に変換するフォトダイオードと、
前記シンチレータによって発せられた前記蛍光を、前記フォトダイオードに向かうにつれて収束させながら前記フォトダイオードに導光する形状のライトガイドと、
前記ライトガイドを形成するためのフレームと、
前記フレームの前記フォトダイオード側の面に設けられ、前記フォトダイオードと係合可能な係合部と、を備え、
前記ライトガイドの前記形状によって得られたスペースであって、前記フォトダイオードの幅方向における前記フォトダイオードの側面より外側に形成される前記スペースを用いて、前記係合部により前記フォトダイオードが前記フレームに固定されたことを特徴とするX線CT装置。 - 前記X線検出器は、列方向に3個以上の前記フォトダイオードを備えることを特徴とする請求項1に記載のX線CT装置。
- 前記シンチレータより幅が縮小された前記フォトダイオードの幅方向のスペースを利用して、前記係合部により前記フォトダイオードを前記ライトガイド側に固定したことを特徴とする請求項1又は2に記載のX線CT装置。
- 前記X線検出器は、前記X線をコリメートするコリメータをさらに備え、
前記シンチレータは、前記コリメータを介した前記X線源からの前記X線に基づいて前記蛍光を発することを特徴とする請求項1乃至3のうちいずれか一項に記載のX線CT装置。 - 前記コリメータ、前記シンチレータ、前記ライトガイド、前記フレーム、及び前記係合部が一体化された構造とすることを特徴とする請求項4に記載のX線CT装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010097330A JP5743420B2 (ja) | 2010-04-20 | 2010-04-20 | X線ct装置 |
US13/089,824 US20110255658A1 (en) | 2010-04-20 | 2011-04-19 | X-ray ct apparatus and x-ray detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010097330A JP5743420B2 (ja) | 2010-04-20 | 2010-04-20 | X線ct装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011224174A JP2011224174A (ja) | 2011-11-10 |
JP5743420B2 true JP5743420B2 (ja) | 2015-07-01 |
Family
ID=44788197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010097330A Expired - Fee Related JP5743420B2 (ja) | 2010-04-20 | 2010-04-20 | X線ct装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20110255658A1 (ja) |
JP (1) | JP5743420B2 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9075151B2 (en) * | 2011-12-22 | 2015-07-07 | General Electric Company | Detector array and method of manufacturing the same |
WO2017143442A1 (en) | 2016-02-26 | 2017-08-31 | Thunder Bay Regional Health Research Institute | Tileable block detectors for seamless block detector arrays in positron emission mammography |
DE102016204457A1 (de) * | 2016-03-17 | 2017-09-21 | Siemens Healthcare Gmbh | Detektorvorrichtung mit lösbarer Auswerteeinheit |
DE102018201601A1 (de) * | 2018-02-02 | 2019-08-08 | Siemens Healthcare Gmbh | Detektormodul |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2650420B2 (ja) * | 1989-06-09 | 1997-09-03 | 富士電機株式会社 | 放射能汚染測定装置 |
US6005911A (en) * | 1995-11-17 | 1999-12-21 | Trex Medical Corporation | Large area array, single exposure digital mammography |
JP2003084066A (ja) * | 2001-04-11 | 2003-03-19 | Nippon Kessho Kogaku Kk | 放射線検出器用部品、放射線検出器および放射線検出装置 |
US7106973B2 (en) * | 2002-08-13 | 2006-09-12 | Lightpointe Communications, Inc. | Apparatus and method for use in free-space optical communication comprising optically aligned components integrated on circuit boards |
US20040251420A1 (en) * | 2003-06-14 | 2004-12-16 | Xiao-Dong Sun | X-ray detectors with a grid structured scintillators |
WO2006097882A2 (en) * | 2005-03-16 | 2006-09-21 | Philips Intellectual Property & Standards Gmbh | X-ray detector with in-pixel processing circuits |
JP2007078567A (ja) * | 2005-09-15 | 2007-03-29 | Shimadzu Corp | 放射線検出器およびその製造方法 |
JP4710975B2 (ja) * | 2006-06-02 | 2011-06-29 | 株式会社島津製作所 | 放射線検出器の製造方法 |
-
2010
- 2010-04-20 JP JP2010097330A patent/JP5743420B2/ja not_active Expired - Fee Related
-
2011
- 2011-04-19 US US13/089,824 patent/US20110255658A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20110255658A1 (en) | 2011-10-20 |
JP2011224174A (ja) | 2011-11-10 |
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