JP5208224B2 - 放射線撮影装置、及び放射線撮影システム - Google Patents
放射線撮影装置、及び放射線撮影システム Download PDFInfo
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- JP5208224B2 JP5208224B2 JP2011004273A JP2011004273A JP5208224B2 JP 5208224 B2 JP5208224 B2 JP 5208224B2 JP 2011004273 A JP2011004273 A JP 2011004273A JP 2011004273 A JP2011004273 A JP 2011004273A JP 5208224 B2 JP5208224 B2 JP 5208224B2
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- 230000005855 radiation Effects 0.000 title claims description 148
- 238000003384 imaging method Methods 0.000 title claims description 37
- 238000002601 radiography Methods 0.000 title claims 3
- LFEUVBZXUFMACD-UHFFFAOYSA-H lead(2+);trioxido(oxo)-$l^{5}-arsane Chemical compound [Pb+2].[Pb+2].[Pb+2].[O-][As]([O-])([O-])=O.[O-][As]([O-])([O-])=O LFEUVBZXUFMACD-UHFFFAOYSA-H 0.000 claims description 25
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 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
- G01N23/20—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 using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
- G01N23/20075—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 using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials by measuring interferences of X-rays, e.g. Borrmann effect
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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
- G01N23/041—Phase-contrast imaging, e.g. using grating interferometers
-
- 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
-
- 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
- A61B6/48—Diagnostic techniques
- A61B6/484—Diagnostic techniques involving phase contrast X-ray imaging
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Description
mは整数
d1は回折格子14の格子部材62の周期
d2は吸収格子16の格子部材72の周期
λはX線の波長
なお、吸収格子16の周期d2は回折格子14の周期に対し
12 放射線源
14 回折格子(第1格子)
16 吸収格子(第2格子)
18 X線画像検出器
62 格子部材(第1部材)
72 格子部材(第2部材)
Claims (6)
- 逆コンプトン散乱により発生した放射線を照射する放射線源と、
前記放射線源から照射される放射線の中心位置からの距離が大きくなるほど間隔が大きくなるように、放射線を回折又は吸収する第1部材が並んで形成され、前記放射線源から照射された放射線を前記第1部材により回折又は吸収する第1格子と、
前記第1格子により回折又は吸収された放射線によりタルボ干渉が発生する位置に配置され、前記放射線源から照射される放射線の中心位置からの距離が大きくなるほど間隔が大きくなるように、放射線を吸収する第2部材が並んで形成された第2格子と、
前記第2格子を透過した放射線を検出する放射線検出器と、
を備え、
前記第1部材は、前記放射線源から前記第1格子の各位置に照射される放射線の波長λの平方根に比例して前記第1部材間の間隔が大きくなるように形成された
放射線撮影装置。 - 前記第2部材は、前記第1格子の前記第1部材の間隔を、前記放射線源から前記第2格子の距離を前記放射線源から前記第1格子の距離で除算した値分だけ大きくした間隔で形成された
請求項1記載の放射線撮影装置。 - 前記放射線源は、エネルギーが異なる放射線を個別に照射可能とされ、
前記第1格子及び第2格子は、前記第1部材間及び前記第2部材間の間隔の変化度合いの異なるものが複数用意され、交換可能とされた
請求項1又は請求項2記載の放射線撮影装置。 - 前記放射線源は、撮影部位の種類及び厚さの少なくとも一方に応じてエネルギーの異なる放射線を個別に照射する
請求項3記載の放射線撮影装置。 - 前記第1格子の前記第1部材及び前記第2格子の前記第2部材は、前記放射線源から照射される放射線の中心位置からの距離が大きくなるほど厚さが薄くなるように形成された
請求項1〜請求項4の何れか1項記載の放射線撮影装置。 - 逆コンプトン散乱により発生した放射線を照射する放射線源と、
前記放射線源から照射される放射線の中心位置からの距離が大きくなるほど間隔が大きくなるように、放射線を回折又は吸収する第1部材が並んで形成され、前記放射線源から照射された放射線を前記第1部材により回折又は吸収する第1格子と、
前記第1格子により回折又は吸収された放射線によりタルボ干渉が発生する位置に配置され、前記放射線源から照射される放射線の中心位置からの距離が大きくなるほど間隔が大きくなるように、放射線を吸収する第2部材が並んで形成された第2格子と、
前記第2格子を透過した放射線を検出する放射線検出器と、
を備え、
前記第1部材は、前記放射線源から前記第1格子の各位置に照射される放射線の波長λの平方根に比例して前記第1部材間の間隔が大きくなるように形成された
放射線撮影システム。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011004273A JP5208224B2 (ja) | 2011-01-12 | 2011-01-12 | 放射線撮影装置、及び放射線撮影システム |
CN2011104468426A CN102579063A (zh) | 2011-01-12 | 2011-12-28 | 放射摄影成像装置以及放射摄影成像系统 |
US13/339,124 US20120177181A1 (en) | 2011-01-12 | 2011-12-28 | Radiographic imaging device and radiographic imaging system |
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JP2011004273A JP5208224B2 (ja) | 2011-01-12 | 2011-01-12 | 放射線撮影装置、及び放射線撮影システム |
Publications (2)
Publication Number | Publication Date |
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JP2012143405A JP2012143405A (ja) | 2012-08-02 |
JP5208224B2 true JP5208224B2 (ja) | 2013-06-12 |
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JP2011004273A Expired - Fee Related JP5208224B2 (ja) | 2011-01-12 | 2011-01-12 | 放射線撮影装置、及び放射線撮影システム |
Country Status (3)
Country | Link |
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US (1) | US20120177181A1 (ja) |
JP (1) | JP5208224B2 (ja) |
CN (1) | CN102579063A (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102010027596B4 (de) * | 2010-07-19 | 2015-04-23 | Siemens Aktiengesellschaft | Verwendung eines Gitters in einem Phasenkontrast-Röntgensystem und Phasenkontrast-Röntgensystem |
WO2015067461A1 (en) * | 2013-11-05 | 2015-05-14 | Koninklijke Philips N.V. | X-ray imaging device with fast spatial modulation of photon flux |
CN105142524A (zh) * | 2014-02-10 | 2015-12-09 | 约翰斯·霍普金斯大学 | 处于高能量的x射线相衬成像和ct的大视场光栅干涉仪 |
US10426417B2 (en) * | 2014-06-16 | 2019-10-01 | Koninklijke Philips N.V. | Computed tomography (CT) hybrid data acquisition |
KR102098035B1 (ko) | 2015-08-12 | 2020-04-08 | 에이에스엠엘 네델란즈 비.브이. | 계측 방법, 방사선 소스, 계측 장치 및 디바이스 제조 방법 |
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JP2005013572A (ja) * | 2003-06-27 | 2005-01-20 | Fuji Photo Film Co Ltd | 画像情報処理方法及び装置、並びに、画像情報処理プログラム |
DE102006015356B4 (de) * | 2006-02-01 | 2016-09-22 | Siemens Healthcare Gmbh | Verfahren zur Erzeugung projektiver und tomographischer Phasenkontrastaufnahmen mit einem Röntgen-System |
JP2008200361A (ja) * | 2007-02-21 | 2008-09-04 | Konica Minolta Medical & Graphic Inc | X線撮影システム |
JP5586986B2 (ja) * | 2010-02-23 | 2014-09-10 | キヤノン株式会社 | X線撮像装置 |
JP2012075798A (ja) * | 2010-10-05 | 2012-04-19 | Fujifilm Corp | 放射線撮影装置、放射線撮影システム、画像処理装置及びプログラム |
JP2012125423A (ja) * | 2010-12-15 | 2012-07-05 | Fujifilm Corp | 放射線画像検出装置、放射線撮影装置、放射線撮影システム |
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2011
- 2011-01-12 JP JP2011004273A patent/JP5208224B2/ja not_active Expired - Fee Related
- 2011-12-28 US US13/339,124 patent/US20120177181A1/en not_active Abandoned
- 2011-12-28 CN CN2011104468426A patent/CN102579063A/zh active Pending
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Publication number | Publication date |
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JP2012143405A (ja) | 2012-08-02 |
CN102579063A (zh) | 2012-07-18 |
US20120177181A1 (en) | 2012-07-12 |
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