JP2011529111A - CTアプリケーション用Gd2O2S物質 - Google Patents
CTアプリケーション用Gd2O2S物質 Download PDFInfo
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- JP2011529111A JP2011529111A JP2011519260A JP2011519260A JP2011529111A JP 2011529111 A JP2011529111 A JP 2011529111A JP 2011519260 A JP2011519260 A JP 2011519260A JP 2011519260 A JP2011519260 A JP 2011519260A JP 2011529111 A JP2011529111 A JP 2011529111A
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Abstract
Description
a)上述したようなGd2O2S:Ndの色素粉体を選択するステップであって、ホットプレスのために使用される前記粉体の粒径が、1μm乃至20μmのレンジにあり、前記ホットプレスが、
− 1000℃乃至1400℃の温度;及び/又は
−100MPa乃至300MPaの圧力、
の下で実施される、ステップと、
b)0.5時間乃至30時間の時間期間中、700℃乃至1200℃の温度で空気アニールするステップであって、任意には、ステップa)とステップb)との間に付加のステップc)が実施され、ステップc)は、0.5時間乃至30時間の時間期間中、1000℃乃至1400℃の温度で真空下で蛍光セラミック物質をアニールすることを含む、ステップと、
を含む方法に向けられる。
−1000℃乃至1400℃、好適には1100℃乃至1300℃、より好適には1150℃乃至1250℃の温度;及び/又は
−100MPa乃至300MPa、好適には180MPa乃至280MPa、より好適には200MPa乃至250MPaの圧力、
において行われることが好適でありうる。好適には、本発明による一軸プレスのステップ中の真空は、0.01Pa以上100Pa以下である。
−好適にはX線、ガンマ光線及び電子ビームであるイオン化放射線を検出するシンチレータ又は蛍光部材;及び/又は、
−医学分野において使用される、好適にはコンピュータトモグラフィ(CT)用の、機器又は装置、
において使用されることができる。
この例において、0.1重量%のNd濃度を有するGd2O2S:Nd色素粉体が使用された。3kgの前記色素粉体が、シンタリング及び/又はフラックス助剤として0.0055gのLiFと混合された。
2重量%のNd含量を有する第2のGd2O2S:Ndセラミックが、例Iと同じやり方で作られた。
Claims (8)
- Gd2O2S:Nd蛍光物質。
- Nd3+濃度が、10wt.ppm以上2000wt.ppm以下である、請求項1に記載のGd2O2S:Nd蛍光物質。
- 前記Gd2O2S:Nd物質は、セラミック物質である、請求項1又は2に記載のGd2O2S:Nd蛍光物質。
- Gd2O2S、(Y,Gd)2O3、LU3Al5O12、Y3Al5O12、Lu3Ga5O12の1又は複数における発光体としてのNdの使用。
- Nd3+濃度が、10wt.ppm以上2000wt.ppm以下である、請求項4に記載のNdの使用。
- ホスト物質がセラミック物質である、請求項4又は5に記載のNdの使用。
- 請求項1乃至3のいずれか1項に記載の蛍光物質を含む、イオン化放射線を検出する検出器であって、前記検出器は、好適にはX線検出器、CT検出器又は電子ポータルイメージング検出器である、検出器。
- 医用イメージング用に適応された装置における請求項7に記載の検出器の使用であって、前記検出器は、好適にはX線検出器、CT検出器又は電子ポータルイメージング検出器である、使用。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200810142960 | 2008-07-23 | ||
CN200810142960.6 | 2008-07-23 | ||
PCT/IB2009/053025 WO2010010480A1 (en) | 2008-07-23 | 2009-07-13 | Gd2O2S MATERIAL FOR USE IN CT APPLICATIONS |
Publications (1)
Publication Number | Publication Date |
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JP2011529111A true JP2011529111A (ja) | 2011-12-01 |
Family
ID=40984800
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011519260A Pending JP2011529111A (ja) | 2008-07-23 | 2009-07-13 | CTアプリケーション用Gd2O2S物質 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8668844B2 (ja) |
EP (1) | EP2318476B1 (ja) |
JP (1) | JP2011529111A (ja) |
CN (1) | CN102105557B (ja) |
RU (1) | RU2528671C2 (ja) |
WO (1) | WO2010010480A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014009257A (ja) * | 2012-06-28 | 2014-01-20 | Nemoto Lumi-Materials Co Ltd | 赤外発光蛍光体 |
Families Citing this family (6)
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GB2507083A (en) | 2012-10-18 | 2014-04-23 | Managed Pressure Operations | Apparatus for continuous circulation drilling. |
US9967259B2 (en) * | 2014-07-18 | 2018-05-08 | Facebook, Inc. | Controlling devices by social networking |
JP6739423B2 (ja) * | 2014-09-25 | 2020-08-12 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 光を発生させるセラミック材料 |
CN105800663B (zh) * | 2014-12-31 | 2017-05-03 | 中国科学院上海硅酸盐研究所 | 硫氧化钆闪烁陶瓷的热压反应烧结方法 |
CN106430276B (zh) * | 2016-09-14 | 2017-11-07 | 中国计量大学 | 一种纳米晶及其制备方法和应用 |
CN112292016B (zh) * | 2020-11-17 | 2023-08-29 | 南昌航空大学 | 一种稀土复合吸波材料的制备方法 |
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- 2009-07-13 EP EP09786582.8A patent/EP2318476B1/en active Active
- 2009-07-13 RU RU2011106790/05A patent/RU2528671C2/ru not_active IP Right Cessation
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Cited By (1)
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JP2014009257A (ja) * | 2012-06-28 | 2014-01-20 | Nemoto Lumi-Materials Co Ltd | 赤外発光蛍光体 |
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CN102105557A (zh) | 2011-06-22 |
RU2011106790A (ru) | 2012-08-27 |
WO2010010480A1 (en) | 2010-01-28 |
RU2528671C2 (ru) | 2014-09-20 |
EP2318476A1 (en) | 2011-05-11 |
US20110114887A1 (en) | 2011-05-19 |
EP2318476B1 (en) | 2018-01-03 |
US8668844B2 (en) | 2014-03-11 |
CN102105557B (zh) | 2013-11-13 |
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