JP2020519391A - スリットスキャン微分位相差撮像のためのグリッド設置装置 - Google Patents
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Abstract
Description
本発明は、設置構造、干渉計アセンブリ、干渉撮像機器、および干渉計アセンブリを製造するための方法に関する。
マンモグラフィは、格子ベースの微分位相差撮像および暗視野撮像の有望な応用分野である。しかしながら、この応用分野での幾何学的制約が比較的厳しい。これらの幾何学的要件の2つは、(数センチメートルのオーダの)非常に短い干渉計と、撮像機器の短い全体的なシステム長(線源−検出器距離)とに対する要求である。
したがって、以上注記した欠点に対処する必要があり得る。
実施形態に従うと、干渉撮像はマンモグラフィ撮像機器である。
以下に、干渉X線撮像の目的のための少なくとも1つの干渉格子用の設置構造を提案する。
Claims (15)
- 干渉撮像のための設置構造(MS)であって、干渉格子(Gi)をその上に安置して受けるための少なくとも1つの湾曲面(Sd)を備え、前記面(Sd)は、グリッドを形成する複数のアパーチャ(SL)を有し、前記格子(Gi)は、そのように受けられると、前記アパーチャのうち少なくとも1つを覆い、前記アパーチャは、撮像機器において組立てられると、検出器上の検出器画素と整列可能であるように配置される、設置構造。
- 前記アパーチャは、前記検出器画素と射影位置合わせして整列可能であるように配置される、請求項1に記載の設置構造。
- 前記湾曲面の曲率に合う曲率で前記湾曲面(Sd)上に前記格子(Gi)を保持するように構成される少なくとも1つの保持部材(RM)を備える、請求項1または2に記載の設置構造。
- 前記設置構造は複数のアパーチャを有する第2の湾曲面(Sp)を含み、前記第2の面は、前記少なくとも1つの第1の湾曲面(Sd)とは反対に配置され(Sp)、前記第2の湾曲面(Sp)は、第2の干渉格子(Gj)を受けるように構成される、先の請求項のいずれか1項に記載の設置構造。
- 前記第1および第2の湾曲面は、タルボ距離の倍数でそれぞれの前記干渉格子を支えるように配置される、請求項4に記載の設置構造。
- 前記少なくとも1つの湾曲面を有する立方体の形状に実質的にある、先の請求項のいずれか1項に記載の設置構造。
- 一方の側で前記少なくとも1つの湾曲面(Sp,Sd)と境を接する中空空間(HS)を含む、先の請求項のいずれか1項に記載の設置構造。
- アセンブリであって、
先の請求項1から7のいずれか1項に記載の設置構造(MS)と、放射線感受性検出器画素を備える干渉撮像用検出器(D)とを備え、前記放射線感受性検出器画素はパターンに配置され、前記パターンは、撮像機器において組立てられると、前記設置構造中にある前記アパーチャと整列可能である、アセンブリ。 - 干渉計アセンブリ(IFA)であって、
少なくとも1つの干渉格子(Gi)がその上に設置された先の請求項のいずれか1項に記載の設置構造を備え、前記格子は、前記設置構造の前記湾曲面(Sp,Sd)に合うように湾曲される、干渉計アセンブリ(IFA)。 - 前記湾曲面(Sd)の曲率に対応する曲率を有する設置プレート(Mp,Md)を備え、前記格子は、前記湾曲面と前記設置プレート(MP)との間に挟まれる、請求項9に記載の干渉計アセンブリ(IFA)。
- 干渉撮像機器(IA)であって、
焦点を有するX線源(XS)と、
請求項9または10に記載の干渉計アセンブリ(IFA)とを備え、
湾曲格子(Gi)は前記焦点に焦点合わせされる、干渉撮像機器(IA)。 - X線検出器(D)を備え、前記干渉計アセンブリ(IFA)は、前記検出器(D)の上にまたは少なくとも前記検出器(D)とは反対に配置される、請求項11に記載の干渉撮像機器。
- 前記検出器(D)は、画素(DL)の別々の群に配置される複数の放射線感受性検出器画素を含み、前記設置構造の前記複数のアパーチャ(SL)は前記画素の群(SL)と位置合わせされる、請求項12に記載の干渉撮像機器。
- 前記撮像機器は走査型である、請求項11から13のいずれか1項に記載の干渉撮像機器。
- 前記撮像機器はマンモグラフィ撮像機器である、請求項11から14のうち1項に記載の干渉撮像機器。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17171111.2A EP3403581A1 (en) | 2017-05-15 | 2017-05-15 | Grid-mounting device for slit-scan differential phase contrast imaging |
EP17171111.2 | 2017-05-15 | ||
PCT/EP2018/062407 WO2018210765A1 (en) | 2017-05-15 | 2018-05-14 | Grid-mounting device for slit-scan differential phase contrast imaging |
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JP2020519391A true JP2020519391A (ja) | 2020-07-02 |
JP7068342B2 JP7068342B2 (ja) | 2022-05-16 |
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JP2019563146A Active JP7068342B2 (ja) | 2017-05-15 | 2018-05-14 | スリットスキャン微分位相差撮像のためのグリッド設置装置 |
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US (1) | US11202609B2 (ja) |
EP (2) | EP3403581A1 (ja) |
JP (1) | JP7068342B2 (ja) |
CN (1) | CN110621232A (ja) |
RU (1) | RU2756930C2 (ja) |
WO (1) | WO2018210765A1 (ja) |
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EP3826032A1 (en) * | 2019-11-22 | 2021-05-26 | Koninklijke Philips N.V. | Modular fabrication technique for gratings for interferometric x-ray imaging |
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JP2012013530A (ja) * | 2010-06-30 | 2012-01-19 | Fujifilm Corp | 回折格子及びその製造方法、並びに放射線撮影装置 |
WO2016177903A1 (en) * | 2015-05-07 | 2016-11-10 | Koninklijke Philips N.V. | Beam hardening correction for scanning dark field and phase contrast imaging |
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- 2017-05-15 EP EP17171111.2A patent/EP3403581A1/en not_active Withdrawn
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- 2018-05-14 RU RU2019137989A patent/RU2756930C2/ru active
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- 2018-05-14 CN CN201880032153.0A patent/CN110621232A/zh active Pending
- 2018-05-14 EP EP18722599.0A patent/EP3634233A1/en active Pending
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RU2019137989A (ru) | 2021-06-16 |
EP3634233A1 (en) | 2020-04-15 |
CN110621232A (zh) | 2019-12-27 |
RU2019137989A3 (ja) | 2021-06-16 |
WO2018210765A1 (en) | 2018-11-22 |
JP7068342B2 (ja) | 2022-05-16 |
EP3403581A1 (en) | 2018-11-21 |
US20210153824A1 (en) | 2021-05-27 |
US11202609B2 (en) | 2021-12-21 |
RU2756930C2 (ru) | 2021-10-07 |
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