JP2018072153A5 - - Google Patents
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- JP2018072153A5 JP2018072153A5 JP2016212126A JP2016212126A JP2018072153A5 JP 2018072153 A5 JP2018072153 A5 JP 2018072153A5 JP 2016212126 A JP2016212126 A JP 2016212126A JP 2016212126 A JP2016212126 A JP 2016212126A JP 2018072153 A5 JP2018072153 A5 JP 2018072153A5
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- radiation
- imaging panel
- radiation imaging
- detection apparatus
- scintillator
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- 238000003384 imaging method Methods 0.000 claims description 42
- 238000001514 detection method Methods 0.000 claims description 24
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 229910052684 Cerium Inorganic materials 0.000 claims description 7
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 7
- 229910052691 Erbium Inorganic materials 0.000 claims description 7
- 229910052693 Europium Inorganic materials 0.000 claims description 7
- UIWYJDYFSGRHKR-UHFFFAOYSA-N Gadolinium Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 7
- 229910052689 Holmium Inorganic materials 0.000 claims description 7
- QEFYFXOXNSNQGX-UHFFFAOYSA-N Neodymium Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims description 7
- 229910052779 Neodymium Inorganic materials 0.000 claims description 7
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 7
- 229910052773 Promethium Inorganic materials 0.000 claims description 7
- 229910052772 Samarium Inorganic materials 0.000 claims description 7
- 229910052771 Terbium Inorganic materials 0.000 claims description 7
- 229910052775 Thulium Inorganic materials 0.000 claims description 7
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 7
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 claims description 7
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 claims description 7
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 claims description 7
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 claims description 7
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 7
- 229910052746 lanthanum Inorganic materials 0.000 claims description 7
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 claims description 7
- VQMWBBYLQSCNPO-UHFFFAOYSA-N promethium Chemical compound [Pm] VQMWBBYLQSCNPO-UHFFFAOYSA-N 0.000 claims description 7
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 claims description 7
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 6
- 229910052718 tin Inorganic materials 0.000 claims description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N tin hydride Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 239000011701 zinc Substances 0.000 claims description 6
- 239000011135 tin Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229910052747 lanthanoid Inorganic materials 0.000 claims description 2
- 150000002602 lanthanoids Chemical group 0.000 claims description 2
- XQPRBTXUXXVTKB-UHFFFAOYSA-M caesium iodide Inorganic materials [I-].[Cs+] XQPRBTXUXXVTKB-UHFFFAOYSA-M 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 239000006100 radiation absorber Substances 0.000 claims 1
- 229910052716 thallium Inorganic materials 0.000 claims 1
- -1 thallium activated cesium iodide Chemical class 0.000 claims 1
Description
上記課題に鑑みて、本発明の実施形態に係る放射線検出装置は、筐体と、筐体の中に重ねて配された第１の放射線撮像パネル及び第２の放射線撮像パネルと、第１の放射線撮像パネルと第２の放射線撮像パネルとの間に配された放射線吸収部と、を含む放射線検出装置であって、放射線吸収部は、Ｋ吸収端のエネルギが３８ｋｅＶ以上かつ６０ｋｅＶ以下に存在する元素を含む第１部材と、第２部材と、を含み、前記第１部材が、ランタン、セリウム、プラセオジウム、ネオジウム、プロメチウム、サマリウム、ユウロピウム、ガドリニウム、テルビウム、ジスプロシウム、ホルミウム、エルビウム、及び、ツリウムのうち少なくとも１つの元素を含む粒子が添加された樹脂を含み、前記第２部材が、銅、銀、亜鉛、スズのうち少なくとも１つを含む金属板を含むことを特徴とする。また、本発明の実施形態に係る放射線検出装置は、筐体と、前記筐体の中に重ねて配された第１の放射線撮像パネル及び第２の放射線撮像パネルと、前記第１の放射線撮像パネルと前記第２の放射線撮像パネルとの間に配された放射線吸収部と、を含む放射線検出装置であって、前記放射線吸収部は、Ｋ吸収端のエネルギが３８ｋｅＶ以上かつ６０ｋｅＶ以下に存在する元素を含む第１部材と、前記元素以外の元素を含む第２部材と、を含み、前記第１部材が、ランタン、セリウム、プラセオジウム、ネオジウム、プロメチウム、サマリウム、ユウロピウム、ガドリニウム、テルビウム、ジスプロシウム、ホルミウム、エルビウム、及び、ツリウムのうちから選ばれたうち少なくとも１つのランタノイドを含む化合物粒子が添加された樹脂を含み、前記第２部材が、銅、銀、亜鉛、スズのうち少なくとも１つを含む金属板を含むことを特徴とする。また、本発明の実施形態に係る放射線検出装置は、筐体と、前記筐体の中に重ねて配された第１の放射線撮像パネル及び第２の放射線撮像パネルと、前記第１の放射線撮像パネルと前記第２の放射線撮像パネルとの間に配された放射線吸収部と、を含む放射線検出装置であって、前記放射線吸収部は、ランタン、セリウム、プラセオジウム、ネオジウム、プロメチウム、サマリウム、ユウロピウム、ガドリニウム、テルビウム、ジスプロシウム、ホルミウム、エルビウム、及び、ツリウムのうち少なくとも１つの元素を含む粒子と、樹脂と、を含む第１部材と、銅、銀、亜鉛、スズのうち少なくとも１つを含む金属板を含む第２部材と、を含むことを特徴とする。 In view of the above problems, a radiation detection apparatus according to an embodiment of the present invention includes a housing, a first radiation imaging panel and a second radiation imaging panel, which are arranged in an overlapping manner in the housing, A radiation detection device including a radiation absorption unit disposed between a radiation imaging panel and a second radiation imaging panel, wherein the radiation absorption unit has an energy at a K absorption edge of 38 keV or more and 60 keV or less. A first member containing an element; and a second member , wherein the first member is made of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, and thulium. A resin containing particles containing at least one element is added, and the second member is at least one of copper, silver, zinc, and tin. Characterized in that it comprises a metal plate including a. In addition, the radiation detection apparatus according to the embodiment of the present invention includes a housing, a first radiation imaging panel and a second radiation imaging panel arranged in an overlapped manner in the housing, and the first radiation imaging. A radiation absorbing device disposed between the panel and the second radiation imaging panel, wherein the radiation absorbing portion has an energy at a K absorption edge of 38 keV or more and 60 keV or less. A first member containing an element and a second member containing an element other than the element, wherein the first member is lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium A resin to which compound particles containing at least one lanthanoid selected from erbium and thulium are added. See, the second member, and wherein the copper, silver, zinc, comprises a metal plate including at least one of tin. In addition, the radiation detection apparatus according to the embodiment of the present invention includes a housing, a first radiation imaging panel and a second radiation imaging panel arranged in an overlapped manner in the housing, and the first radiation imaging. A radiation absorbing unit disposed between the panel and the second radiation imaging panel, wherein the radiation absorbing unit comprises lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, A first member including particles containing at least one element of gadolinium, terbium, dysprosium, holmium, erbium, and thulium; a resin; and a metal plate including at least one of copper, silver, zinc, and tin. And a second member containing.
Claims (14)
前記筐体の中に重ねて配された第１の放射線撮像パネル及び第２の放射線撮像パネルと、
前記第１の放射線撮像パネルと前記第２の放射線撮像パネルとの間に配された放射線吸収部と、
を含む放射線検出装置であって、
前記放射線吸収部は、Ｋ吸収端のエネルギが３８ｋｅＶ以上かつ６０ｋｅＶ以下に存在する元素を含む第１部材と、第２部材と、を含み、
前記第１部材が、ランタン、セリウム、プラセオジウム、ネオジウム、プロメチウム、サマリウム、ユウロピウム、ガドリニウム、テルビウム、ジスプロシウム、ホルミウム、エルビウム、及び、ツリウムのうち少なくとも１つの元素を含む粒子が添加された樹脂を含み、
前記第２部材が、銅、銀、亜鉛、スズのうち少なくとも１つを含む金属板を含むことを特徴とする放射線検出装置。 A housing ,
A first radiation imaging panel and a second radiation imaging panel disposed overlapping in the prior Kikatamitai,
A radiation absorbing portion disposed between the first radiation imaging panel and the second radiation imaging panel;
A radiation detection device comprising:
The radiation absorbing portion includes a first member including an element having an energy at a K absorption edge of 38 keV or more and 60 keV or less, and a second member ,
The first member includes a resin to which particles containing at least one element of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, and thulium are added,
The radiation detection apparatus , wherein the second member includes a metal plate including at least one of copper, silver, zinc, and tin .
前記筐体の中に重ねて配された第１の放射線撮像パネル及び第２の放射線撮像パネルと、A first radiation imaging panel and a second radiation imaging panel arranged in an overlapping manner in the housing;
前記第１の放射線撮像パネルと前記第２の放射線撮像パネルとの間に配された放射線吸収部と、を含む放射線検出装置であって、A radiation detector including a radiation absorbing portion disposed between the first radiation imaging panel and the second radiation imaging panel,
前記放射線吸収部は、Ｋ吸収端のエネルギが３８ｋｅＶ以上かつ６０ｋｅＶ以下に存在する元素を含む第１部材と、前記元素以外の元素を含む第２部材と、を含み、The radiation absorbing portion includes a first member containing an element having an energy at a K absorption edge of 38 keV or more and 60 keV or less, and a second member containing an element other than the element,
前記第１部材が、ランタン、セリウム、プラセオジウム、ネオジウム、プロメチウム、サマリウム、ユウロピウム、ガドリニウム、テルビウム、ジスプロシウム、ホルミウム、エルビウム、及び、ツリウムのうちから選ばれたうち少なくとも１つのランタノイドを含む化合物粒子が添加された樹脂を含み、Compound particles containing at least one lanthanoid selected from lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, and thulium are added. Containing resin,
前記第２部材が、銅、銀、亜鉛、スズのうち少なくとも１つを含む金属板を含むことを特徴とする放射線検出装置。The radiation detection apparatus, wherein the second member includes a metal plate including at least one of copper, silver, zinc, and tin.
前記筐体の中に重ねて配された第１の放射線撮像パネル及び第２の放射線撮像パネルと、A first radiation imaging panel and a second radiation imaging panel arranged in an overlapping manner in the housing;
前記第１の放射線撮像パネルと前記第２の放射線撮像パネルとの間に配された放射線吸収部と、A radiation absorber disposed between the first radiation imaging panel and the second radiation imaging panel;
を含む放射線検出装置であって、A radiation detection device comprising:
前記放射線吸収部は、The radiation absorbing portion is
ランタン、セリウム、プラセオジウム、ネオジウム、プロメチウム、サマリウム、ユウロピウム、ガドリニウム、テルビウム、ジスプロシウム、ホルミウム、エルビウム、及び、ツリウムのうち少なくとも１つの元素を含む粒子と、樹脂と、を含む第１部材と、A first member comprising particles containing at least one element of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, and thulium; and a resin;
銅、銀、亜鉛、スズのうち少なくとも１つを含む金属板を含む第２部材と、A second member including a metal plate including at least one of copper, silver, zinc, and tin;
を含むことを特徴とする放射線検出装置。A radiation detection apparatus comprising:
前記第２部材は前記反射率確保のための部材とは別に設けられていることを特徴とする請求項８に記載の放射線検出装置。The radiation detection apparatus according to claim 8, wherein the second member is provided separately from the member for ensuring the reflectance.
前記第１の放射線撮像パネルは、前記シンチレータのうち第１のシンチレータを有し、
前記第２の放射線撮像パネルは、前記シンチレータのうち第２のシンチレータを有し、
前記第１のシンチレータの放射線の吸収率が、前記第２のシンチレータの放射線の吸収率以下であることを特徴とする請求項９又は１０に記載の放射線検出装置。 In the radiation detection apparatus, the first radiation imaging panel is arranged on a side where radiation enters than the second radiation imaging panel,
The first radiation imaging panel has a first scintillator among the scintillators,
The second radiation imaging panel has a second scintillator among the scintillators,
The radiation detection apparatus according to claim 9 or 10, wherein an absorption rate of radiation of the first scintillator is equal to or less than an absorption rate of radiation of the second scintillator.
タリウム活性化ヨウ化セシウム（ＣｓＩ：Ｔｌ）を含み、
前記第１の放射線撮像パネルに配された前記検出部と前記第１のシンチレータとの界面から、前記界面と交差する方向に成長した柱状結晶構造を有し、
前記界面に対する正射影において、前記第１のシンチレータの柱状結晶と柱状結晶同士の間の空隙との面積に対する前記柱状結晶の占める面積の割合を充填率としたとき、
前記第１のシンチレータの膜厚［μｍ］×前記充填率［％］≦８０００［μｍ・％］
であることを特徴とする請求項１１に記載の放射線検出装置。 The first scintillator is
Including thallium activated cesium iodide (CsI: Tl),
From the interface between the detection unit and the first scintillator arranged in the first radiation imaging panel, a columnar crystal structure grown in a direction intersecting the interface,
In the orthogonal projection to the interface, when the filling ratio is the ratio of the area occupied by the columnar crystals to the area between the columnar crystals of the first scintillator and the gaps between the columnar crystals,
Film thickness [μm] of the first scintillator × fill rate [%] ≦ 8000 [μm ·%]
The radiation detection apparatus according to claim 11, wherein:
前記遮光部材が、前記第１の放射線撮像パネルと前記放射線吸収部との間と、前記第２の放射線撮像パネルと前記放射線吸収部との間と、の少なくとも何れかに配されることを特徴とする請求項１乃至１２の何れか１項に記載の放射線検出装置。 The radiation absorbing portion further includes a light shielding member that shields visible light,
The light shielding member is disposed at least one of between the first radiation imaging panel and the radiation absorbing unit and between the second radiation imaging panel and the radiation absorbing unit. The radiation detection apparatus according to any one of claims 1 to 12.
前記放射線検出装置からの信号を処理する信号処理部と、を備えることを特徴とする放射線撮像システム。 A radiation detection apparatus according to any one of claims 1 to 13,
A radiation imaging system comprising: a signal processing unit that processes a signal from the radiation detection apparatus.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016212126A JP6759056B2 (en) | 2016-10-28 | 2016-10-28 | Radiation detector and radiation imaging system |
| EP17161014.0A EP3226038B1 (en) | 2016-03-28 | 2017-03-15 | Radiation detection apparatus and radiation imaging system |
| US15/461,754 US10012741B2 (en) | 2016-03-28 | 2017-03-17 | Radiation detection apparatus and radiation imaging system |
| KR1020170038204A KR20170113264A (en) | 2016-03-28 | 2017-03-27 | Radiation detection apparatus and radiation imaging system |
| CN201710190956.6A CN107238853B (en) | 2016-03-28 | 2017-03-28 | Radiation detection apparatus and radiation imaging system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016212126A JP6759056B2 (en) | 2016-10-28 | 2016-10-28 | Radiation detector and radiation imaging system |
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| JP2018072153A JP2018072153A (en) | 2018-05-10 |
| JP2018072153A5 true JP2018072153A5 (en) | 2019-11-28 |
| JP6759056B2 JP6759056B2 (en) | 2020-09-23 |
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| JP2020032021A (en) * | 2018-08-31 | 2020-03-05 | キヤノン株式会社 | Radiation detector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0631905B2 (en) * | 1985-04-30 | 1994-04-27 | コニカ株式会社 | Radiation image conversion panel |
| JPS63221277A (en) * | 1987-03-10 | 1988-09-14 | Toshiba Corp | Radiation detector for energy subtraction |
| JPH05208000A (en) * | 1992-01-31 | 1993-08-20 | Fuji Photo Film Co Ltd | Energy subtraction image forming device |
| DE4215343A1 (en) * | 1992-05-09 | 1993-11-11 | Philips Patentverwaltung | Filter method for an X-ray system and arrangement for carrying out such a filter method |
| JP3269742B2 (en) * | 1994-10-12 | 2002-04-02 | 富士写真フイルム株式会社 | Stimulable phosphor sheet |
| JP2004271333A (en) * | 2003-03-07 | 2004-09-30 | Hamamatsu Photonics Kk | Scintillator panel, image sensor and energy discriminator |
| JP4686538B2 (en) * | 2005-02-23 | 2011-05-25 | 株式会社東芝 | Radiation shielding sheet |
| US7834321B2 (en) * | 2006-07-14 | 2010-11-16 | Carestream Health, Inc. | Apparatus for asymmetric dual-screen digital radiography |
| JP2011022132A (en) * | 2009-06-17 | 2011-02-03 | Fujifilm Corp | Radiation detection device and radiation image detection system |
| JP2011000235A (en) * | 2009-06-17 | 2011-01-06 | Fujifilm Corp | Radiation detecting device and radiation image detection system |
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