JP6533006B2 - 強化されたx線放射を用いた撮像 - Google Patents
強化されたx線放射を用いた撮像 Download PDFInfo
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- 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
- G01N23/20008—Constructional details of analysers, e.g. characterised by X-ray source, detector or optical system; Accessories therefor; Preparing specimens therefor
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0927—Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/0977—Reflective elements
- G02B27/0983—Reflective elements being curved
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/08—Mirrors
- G02B5/10—Mirrors with curved faces
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—HANDLING OF PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—HANDLING OF PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/06—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diffraction, refraction or reflection, e.g. monochromators
- G21K1/067—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diffraction, refraction or reflection, e.g. monochromators using surface reflection, e.g. grazing incidence mirrors, gratings
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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
- G01N2223/316—Accessories, mechanical or electrical features collimators
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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
- G01N23/044—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 laminography or tomosynthesis
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—HANDLING OF PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K2201/00—Arrangements for handling radiation or particles
- G21K2201/06—Arrangements for handling radiation or particles using diffractive, refractive or reflecting elements
- G21K2201/064—Arrangements for handling radiation or particles using diffractive, refractive or reflecting elements having a curved surface
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Description
Θc≒1.6*10^(−3)*ρ^(0.5)*λ
ここで、ρ[g/cm3]は、媒体の密度に関係し、λ[Å]は、X線放射波の波長に関係する。
Claims (15)
- 20keV〜40keVのエネルギー帯域幅内のエネルギーを有するX線エネルギーの多色スペクトルを放出するX線放射を生成するためのソースと、
X線撮像のために対象物体を配置するための物体収容空間と、
X線コリメータ配列と、
X線ミラー配列と、
を備えるX線撮像装置であって、
前記X線コリメータ配列は、少なくとも、コリメートされたX線放射を前記物体収容空間に与えるために前記ソースと前記物体収容空間との間に配置されたプレコリメータを備え、
前記X線ミラー配列は、前記ソースと前記プレコリメータとの間に配置され、
前記X線ミラー配列は、前記プレコリメータに向けて前記X線放射の一部分を偏向させるために、前記X線放射の前記一部分のX線エネルギーの全体多色スペクトルの全反射をもたらすことによって前記ソースのX線放射を誘導し、それによって、前記物体収容空間の領域において、反射されない主要X線放射と全反射による副次X線放射とが結合された形態で強化された放射が与えられるようにするための2つのミラーの組を備え、
前記2つのミラーの組のミラーは、ゼロより大きな広がり角で互いに対向し、それによって、前記ミラーの組が、入口幅を有するX線入口と、前記入口幅よりも小さい出口幅を有するX線出口とを設けるようにする、X線撮像装置。 - 前記主要X線放射は、前記ソースと前記プレコリメータとの間に主要ビーム円錐を形成し、
前記ミラーの組の前記ミラーは、前記主要ビーム円錐の外側に当接し、
前記広がり角は、前記主要ビーム円錐の円錐角に対応し、円錐角に対する最大のずれは10%である、請求項1に記載のX線撮像装置。 - 前記ミラーの組の前記ミラーの各々の長さLMは、不等式
LM≦LMmax=LW/(Θc2−Θm)
が成り立つように配置され、
LWは、前記ミラーの組の前記X線出口の前記出口幅であり、
Θc2は、前記ミラーの組のミラーにおける臨界反射角であり、
Θmは、前記ミラーの組の前記ミラーの前記広がり角である、請求項1又は2に記載のX線撮像装置。 - 前記ミラーの組の前記X線出口は、前記プレコリメータの開口に当接する、請求項1乃至3のいずれか一項に記載のX線撮像装置。
- 前記プレコリメータの開口は、前記ミラーの組によって形成される、請求項1乃至4のいずれか一項に記載のX線撮像装置。
- 前記ミラーの組は、前記ミラーの組で反射される前記ソースの前記X線放射の前記一部分について、前記ミラーの組の前記ミラーで最大で1つ又は2つの全反射が生じるように配置される、請求項1乃至5のいずれか一項に記載のX線撮像装置。
- 前記プレコリメータは、少なくとも2つの開口を備え、
前記プレコリメータの開口ごとに、前記X線ミラー配列は、関連するミラーの組を備える、請求項1乃至6のいずれか一項に記載のX線撮像装置。 - 前記X線コリメータ配列は、ポストコリメータを更に備え、
前記物体収容空間は、前記プレコリメータと前記ポストコリメータとの間に配置される、請求項1乃至7のいずれか一項に記載のX線撮像装置。 - 前記ミラーの組の各ミラーは、前記全反射を与えるためのコーティング層を有する基板を備え、
前記コーティング層と前記基板との間に、反射されずにミラー面を通過し、前記コーティング層に入る、入射放射からの散乱放射を低減する境界が設けられる、請求項1乃至8のいずれか一項に記載のX線撮像装置。 - 前記コーティング層と前記基板との間に、不均一な界面の領域が前記境界として設けられる、請求項9に記載のX線撮像装置。
- 前記界面は、ランダムに粗く構築された表面プロファイルを有する、請求項10に記載のX線撮像装置。
- 前記界面は、0.05mm〜1.5mmの周期的高さ及び0.5mm〜5mmの周期を有する周期的プロファイルを有する、請求項10に記載のX線撮像装置。
- 前記コーティング層の厚みは10nm〜25nmである、請求項9乃至12のいずれか一項に記載のX線撮像装置。
- 請求項1乃至13のいずれか一項に記載のX線撮像装置と、
前記物体収容空間を通過したX線放射を検出するための検出器と、
撮像処理ユニットと、
画像データ出力ユニットと、
を備えるX線撮像システムであって、
前記撮像処理ユニットは、前記検出器から信号を受信し、前記信号に基づいて物体の画像データを計算し、
前記画像データ出力ユニットは、更なる目的のために前記画像データを提供する、X線撮像システム。 - 前記ソース、前記X線ミラー配列、前記X線コリメータ配列、及び前記検出器を機械的に接続するための装着機構と、
前記装着機構を変位させるように前記装着機構に結合されたアクチュエータと、
前記アクチュエータを制御する制御ユニットと、
を更に備え、
前記制御ユニットは、前記検出器から信号を受信し、前記検出器から受信した信号に基づいて、制御信号を計算する、請求項14に記載のX線撮像システム。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP15176653.2 | 2015-07-14 | ||
| EP15176653 | 2015-07-14 | ||
| PCT/EP2016/066458 WO2017009302A1 (en) | 2015-07-14 | 2016-07-12 | Imaging with enhanced x-ray radiation |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2018526063A JP2018526063A (ja) | 2018-09-13 |
| JP2018526063A5 JP2018526063A5 (ja) | 2019-04-25 |
| JP6533006B2 true JP6533006B2 (ja) | 2019-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018501243A Expired - Fee Related JP6533006B2 (ja) | 2015-07-14 | 2016-07-12 | 強化されたx線放射を用いた撮像 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10765383B2 (ja) |
| EP (1) | EP3322340B1 (ja) |
| JP (1) | JP6533006B2 (ja) |
| CN (1) | CN107847200B (ja) |
| WO (1) | WO2017009302A1 (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11058895B2 (en) * | 2017-08-15 | 2021-07-13 | Daegu Gyeongbuk Institute Of Science And Technology | Collimator and medical robot including the same |
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| US8587768B2 (en) * | 2010-04-05 | 2013-11-19 | Media Lario S.R.L. | EUV collector system with enhanced EUV radiation collection |
| DE102010015422B4 (de) * | 2010-04-19 | 2013-04-18 | Siemens Aktiengesellschaft | Röntgendetektor mit einer direkt konvertierenden Halbleiterschicht und Kalibrierverfahren für einen solchen Röntgendetektor |
| DE102010022851B4 (de) * | 2010-06-07 | 2014-11-13 | Siemens Aktiengesellschaft | Röntgenstrahlungsvorrichtung zur Erzeugung von quasimonochromatischer Röntgenstrahlung und Radiographie-Röntgenaufnahmesystem |
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| EP2703843A4 (en) * | 2011-04-21 | 2015-04-01 | Telesystems Co Ltd | CALIBRATION DEVICE FOR PHOTON COUNT RAY DETECTOR AND CALIBRATION METHOD THEREOF |
| JP2013057628A (ja) | 2011-09-09 | 2013-03-28 | Canon Inc | X線導波路の製造方法 |
| US20130114795A1 (en) * | 2011-09-22 | 2013-05-09 | Canon Kabushiki Kaisha | X-ray waveguide, method for manufacturing x-ray waveguide, and method for controlling x-ray waveguide |
| CN103126691B (zh) * | 2011-11-25 | 2016-08-03 | 深圳迈瑞生物医疗电子股份有限公司 | 限束器、放射影像设备及x线辐射野指示方法 |
| EP2796938B1 (de) * | 2013-04-25 | 2015-06-10 | VOCO GmbH | Vorrichtung zum Erfassen einer 3D-Struktur eines Objekts |
| JP6284073B2 (ja) * | 2013-07-12 | 2018-02-28 | 国立大学法人 東京大学 | 回転体ミラーを用いたx線集光システムの光学設計方法及びx線集光システム |
| EP3316782B8 (en) * | 2015-06-30 | 2020-04-01 | Koninklijke Philips N.V. | Scanning x-ray apparatus with full-field detector |
| RU2662074C1 (ru) * | 2015-08-26 | 2018-07-23 | Конинклейке Филипс Н.В. | Двухэнергетическая дифференциальная фазово-контрастная визуализация |
-
2016
- 2016-07-12 EP EP16738149.0A patent/EP3322340B1/en not_active Not-in-force
- 2016-07-12 US US15/743,304 patent/US10765383B2/en not_active Expired - Fee Related
- 2016-07-12 CN CN201680041153.8A patent/CN107847200B/zh not_active Expired - Fee Related
- 2016-07-12 JP JP2018501243A patent/JP6533006B2/ja not_active Expired - Fee Related
- 2016-07-12 WO PCT/EP2016/066458 patent/WO2017009302A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017009302A1 (en) | 2017-01-19 |
| EP3322340A1 (en) | 2018-05-23 |
| US10765383B2 (en) | 2020-09-08 |
| EP3322340B1 (en) | 2019-06-19 |
| CN107847200B (zh) | 2022-04-01 |
| US20180214093A1 (en) | 2018-08-02 |
| JP2018526063A (ja) | 2018-09-13 |
| CN107847200A (zh) | 2018-03-27 |
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