JP4558457B2 - 放射線検出器用のシンチレータ・アレイの製造方法 - Google Patents
放射線検出器用のシンチレータ・アレイの製造方法 Download PDFInfo
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- JP4558457B2 JP4558457B2 JP2004336209A JP2004336209A JP4558457B2 JP 4558457 B2 JP4558457 B2 JP 4558457B2 JP 2004336209 A JP2004336209 A JP 2004336209A JP 2004336209 A JP2004336209 A JP 2004336209A JP 4558457 B2 JP4558457 B2 JP 4558457B2
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- Prior art keywords
- scintillator
- array
- pixel
- layer
- coating
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- Expired - Fee Related
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- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 230000005855 radiation Effects 0.000 title description 11
- 238000000576 coating method Methods 0.000 claims description 51
- 239000011248 coating agent Substances 0.000 claims description 43
- 229910052751 metal Inorganic materials 0.000 claims description 29
- 239000002184 metal Substances 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 14
- 239000000853 adhesive Substances 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 11
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(iii) oxide Chemical compound O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- CJNBYAVZURUTKZ-UHFFFAOYSA-N hafnium(IV) oxide Inorganic materials O=[Hf]=O CJNBYAVZURUTKZ-UHFFFAOYSA-N 0.000 claims description 2
- YEXPOXQUZXUXJW-UHFFFAOYSA-N lead(II) oxide Inorganic materials [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten(VI) oxide Inorganic materials O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 description 17
- 230000004888 barrier function Effects 0.000 description 16
- 238000003384 imaging method Methods 0.000 description 11
- 238000002591 computed tomography Methods 0.000 description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 8
- 239000004593 Epoxy Substances 0.000 description 5
- 238000005266 casting Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000002310 reflectometry Methods 0.000 description 5
- 238000013170 computed tomography imaging Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000003491 array Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000003618 dip coating Methods 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000004528 spin coating Methods 0.000 description 2
- NJVOHKFLBKQLIZ-UHFFFAOYSA-N (2-ethenylphenyl) prop-2-enoate Chemical compound C=CC(=O)OC1=CC=CC=C1C=C NJVOHKFLBKQLIZ-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006334 epoxy coating Polymers 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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]
-
- 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
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/2002—Optical details, e.g. reflecting or diffusing layers
-
- 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
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/202—Measuring radiation intensity with scintillation detectors the detector being a crystal
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Biomedical Technology (AREA)
- Theoretical Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Pulmonology (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement Of Radiation (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Description
12 ガントリ
14 X線源
16 X線ビーム
18 検出器アレイ
20 検出器素子
22 患者
24 回転中心
26 制御機構
42 表示器
46 モータ式テーブル
48 ガントリ開口
50 シンチレータ素子
52 非シンチレート性間隙
53 アレイ
54 光検出器
60 ピクセル型シンチレータ・パック・プリフォーム
62 上面
64 側面
66 切断されていない部分
68 平滑層
70 反射性金属層
72 遮断層
74 接着剤
Claims (2)
- シンチレータ・アレイ(53)を製造する方法であって、
アレイを成して並列して配列されており、間隙によって離隔されている複数のシンチレータ・ピクセルであって、各々が上面及び複数の側面を有しているシンチレータ・ピクセルを含むシンチレータ・ピクセルの二次元アレイを提供するステップと、
平滑層を形成するように各々のシンチレータ・ピクセルの前記上面及び前記複数の側面に平滑コーティングを施すステップと、
反射性金属層を形成するように前記平滑層の上に反射性金属コーティングを施すステップと、
前記反射性金属層を被覆して保護する層(72)を形成するステップと、
前記第一乃至第三の層(68,70,72)が形成された前記シンチレータ・ピクセル(50)同士の間の前記間隙(52)に接着剤(74)を充填するステップと、
を含み、前記接着剤(74)が充填材を含んでおり、
前記接着剤(74)が前記充填材を当該接着剤の合計重量を基準とした重量百分率で20重量%−50重量%で含み、前記充填材がTa2O5、Bi2O3、WO3、PbO、HfO2及びタングステンの少なくとも一つを含んでいる、
シンチレータ・アレイ(53)を製造する方法。 - 前記シンチレータ・ピクセルの二次元アレイを提供するステップは、前記シンチレータ・ピクセル(50)の前記複数の側面(64)が、前記上面(62)に対して垂直となるように形成されるように、
外周ソーによるダイス加工手法又はワイヤ・ソーによるダイス加工手法による切断方法を用いて、前記シンチレータ・ピクセルを切断して前記間隙を形成するステップを含んでいる、請求項1に記載の方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/718,339 US6898265B1 (en) | 2003-11-20 | 2003-11-20 | Scintillator arrays for radiation detectors and methods of manufacture |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005189234A JP2005189234A (ja) | 2005-07-14 |
JP4558457B2 true JP4558457B2 (ja) | 2010-10-06 |
Family
ID=34591075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004336209A Expired - Fee Related JP4558457B2 (ja) | 2003-11-20 | 2004-11-19 | 放射線検出器用のシンチレータ・アレイの製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US6898265B1 (ja) |
JP (1) | JP4558457B2 (ja) |
CN (1) | CN1654976B (ja) |
IL (1) | IL165272A0 (ja) |
NL (1) | NL1027508C2 (ja) |
Families Citing this family (27)
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US7308074B2 (en) * | 2003-12-11 | 2007-12-11 | General Electric Company | Multi-layer reflector for CT detector |
US7046763B2 (en) * | 2003-12-23 | 2006-05-16 | General Electric Company | Field and factory testable imaging detector |
EP1779139A1 (en) * | 2004-08-10 | 2007-05-02 | Philips Intellectual Property & Standards GmbH | Arrangement of a scintillator and an anti-scatter-grid |
US7329875B2 (en) * | 2004-11-23 | 2008-02-12 | General Electric Company | Detector array for imaging system and method of making same |
CN101253419B (zh) * | 2005-09-01 | 2011-07-27 | 上海丽恒光微电子科技有限公司 | X射线探测器和x射线探测器制造方法 |
US7932499B2 (en) * | 2006-03-13 | 2011-04-26 | Hitachi Metals, Ltd. | Radiation detector and method for producing the same |
DE102007038189A1 (de) * | 2007-08-13 | 2009-02-19 | Siemens Ag | Strahlungswandler, Detektormodul, Verfahren zu deren Herstellung sowie Strahlungserfassungseinrichtung |
CN104330816A (zh) * | 2007-11-09 | 2015-02-04 | 皇家飞利浦电子股份有限公司 | 吸湿性闪烁体的保护 |
JP5587788B2 (ja) * | 2007-12-21 | 2014-09-10 | コーニンクレッカ フィリップス エヌ ヴェ | 複合樹脂におけるシンチレータを備えた放射線感受性検出器 |
JP4825848B2 (ja) * | 2008-07-11 | 2011-11-30 | 東芝電子管デバイス株式会社 | 反射膜用組成物、反射膜、およびx線検出器 |
US20100127180A1 (en) * | 2008-11-24 | 2010-05-27 | Cmt Medical Technologies Ltd. | Scintillator array and a method of constructing the same |
SG172388A1 (en) * | 2008-12-29 | 2011-07-28 | Saint Gobain Ceramics | Rare-earth materials, scintillator crystals, and ruggedized scintillator devices incorporating such crystals |
US9322939B2 (en) * | 2009-09-08 | 2016-04-26 | Koninklijke Philips N.V. | Imaging measurement system with a printed photodetector array |
US8247778B2 (en) * | 2010-06-30 | 2012-08-21 | General Electric Company | Scintillator arrays and methods of making the same |
CN102985845B (zh) * | 2010-07-06 | 2015-11-25 | 皇家飞利浦电子股份有限公司 | 用于产生具有银(Ag)基间隙的闪烁体阵列的方法 |
CN101893716A (zh) * | 2010-07-08 | 2010-11-24 | 中国科学院高能物理研究所 | 闪烁体及闪烁体探测器 |
CN103069301B (zh) * | 2010-08-30 | 2016-04-27 | 圣戈本陶瓷及塑料股份有限公司 | 包括闪烁体元件阵列的辐射检测系统及其形成方法 |
WO2013102156A1 (en) | 2011-12-30 | 2013-07-04 | Saint-Gobain Ceramics & Plastics, Inc. | Scintillation detection device with an encapsulated scintillator |
US9164181B2 (en) * | 2011-12-30 | 2015-10-20 | Saint-Gobain Ceramics & Plastics, Inc. | Scintillation crystals having features on a side, radiation detection apparatuses including such scintillation crystals, and processes of forming the same |
JP6071041B2 (ja) | 2012-03-30 | 2017-02-01 | 日立金属株式会社 | シンチレータアレイの製造方法及び放射線検出器の製造方法 |
US9012857B2 (en) | 2012-05-07 | 2015-04-21 | Koninklijke Philips N.V. | Multi-layer horizontal computed tomography (CT) detector array with at least one thin photosensor array layer disposed between at least two scintillator array layers |
US9377350B2 (en) * | 2014-09-04 | 2016-06-28 | Newport Fab, Llc | Light sensor with chemically resistant and robust reflector stack |
EP3207406B1 (en) * | 2014-10-17 | 2020-07-29 | Koninklijke Philips N.V. | Pet detector scintillator arrangement with light sharing and depth of interaction estimation |
US11156727B2 (en) * | 2015-10-02 | 2021-10-26 | Varian Medical Systems, Inc. | High DQE imaging device |
EP3495849A1 (en) * | 2017-12-11 | 2019-06-12 | Koninklijke Philips N.V. | Multilayer pixelated scintillator with enlarged fill factor |
EP4060682A4 (en) * | 2019-11-13 | 2023-12-13 | Kabushiki Kaisha Toshiba | SCINTILLATOR ARRAY, METHOD FOR MANUFACTURING SCINTILLATOR ARRAY, RADIATION DETECTOR AND RADIATION DETECTION DEVICE |
CN111410563B (zh) * | 2020-03-30 | 2020-12-04 | 肖贵遐 | 一种金属化隔离的闪烁陶瓷阵列结构及其制备方法 |
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JP2003084067A (ja) * | 2001-09-10 | 2003-03-19 | Hitachi Medical Corp | X線検出器及びこれを用いたx線ct装置 |
JP2003172782A (ja) * | 2001-12-06 | 2003-06-20 | Hamamatsu Photonics Kk | X線像撮像装置及びその製造方法 |
JP2003262676A (ja) * | 2001-12-06 | 2003-09-19 | General Electric Co <Ge> | ディジタルX線検出器アセンブリの寿命を改善する直接式CsIシンチレータ・コーティング |
JP2004151007A (ja) * | 2002-10-31 | 2004-05-27 | Toshiba Corp | 放射線検出器 |
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CN1654976B (zh) | 2011-08-03 |
CN1654976A (zh) | 2005-08-17 |
IL165272A0 (en) | 2005-12-18 |
US6898265B1 (en) | 2005-05-24 |
JP2005189234A (ja) | 2005-07-14 |
US20050111613A1 (en) | 2005-05-26 |
NL1027508A1 (nl) | 2005-05-23 |
NL1027508C2 (nl) | 2006-03-20 |
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