DE3368773D1 - Rare earth doped yttria-gadolinia ceramic scintillators and methods for making - Google Patents
Rare earth doped yttria-gadolinia ceramic scintillators and methods for makingInfo
- Publication number
- DE3368773D1 DE3368773D1 DE8383105749T DE3368773T DE3368773D1 DE 3368773 D1 DE3368773 D1 DE 3368773D1 DE 8383105749 T DE8383105749 T DE 8383105749T DE 3368773 T DE3368773 T DE 3368773T DE 3368773 D1 DE3368773 D1 DE 3368773D1
- Authority
- DE
- Germany
- Prior art keywords
- making
- methods
- rare earth
- earth doped
- doped yttria
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- 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
- G01T1/2023—Selection of materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/50—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/50—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds
- C04B35/505—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds based on yttrium oxide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
- C04B35/645—Pressure sintering
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
- C04B35/645—Pressure sintering
- C04B35/6455—Hot isostatic pressing
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
- C09K11/7767—Chalcogenides
- C09K11/7769—Oxides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7783—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals one of which being europium
- C09K11/7784—Chalcogenides
- C09K11/7787—Oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Luminescent Compositions (AREA)
- Measurement Of Radiation (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38981782A | 1982-06-18 | 1982-06-18 | |
US38981282A | 1982-06-18 | 1982-06-18 | |
US06/389,816 US4466929A (en) | 1982-06-18 | 1982-06-18 | Preparation of yttria-gadolinia ceramic scintillators by vacuum hot pressing |
US06/389,818 US4473513A (en) | 1982-06-18 | 1982-06-18 | Method for sintering high density yttria-gadolinia ceramic scintillators |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3368773D1 true DE3368773D1 (en) | 1987-02-05 |
Family
ID=27503309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8383105749T Expired DE3368773D1 (en) | 1982-06-18 | 1983-06-11 | Rare earth doped yttria-gadolinia ceramic scintillators and methods for making |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0097296B1 (de) |
JP (1) | JPS6438491A (de) |
DE (1) | DE3368773D1 (de) |
IL (1) | IL68676A (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL80333A (en) * | 1985-12-30 | 1991-01-31 | Gen Electric | Radiation detector employing solid state scintillator material and preparation methods therefor |
US4783596A (en) * | 1987-06-08 | 1988-11-08 | General Electric Company | Solid state scintillator and treatment therefor |
US5013696A (en) * | 1989-09-25 | 1991-05-07 | General Electric Company | Preparation of high uniformity polycrystalline ceramics by presintering, hot isostatic pressing and sintering and the resulting ceramic |
US5100598A (en) * | 1991-02-19 | 1992-03-31 | General Electric Company | Method of forming yttria-gadolinia ceramic scintillator from ammonium dispersed oxalate precipitates |
US5882547A (en) * | 1996-08-16 | 1999-03-16 | General Electric Company | X-ray scintillators and devices incorporating them |
US6093347A (en) * | 1997-05-19 | 2000-07-25 | General Electric Company | Rare earth X-ray scintillator compositions |
JP3777486B2 (ja) | 1997-07-08 | 2006-05-24 | 株式会社日立メディコ | 蛍光体及びそれを用いた放射線検出器及びx線ct装置 |
JP2001099941A (ja) * | 1999-09-30 | 2001-04-13 | Hitachi Metals Ltd | 放射線遮蔽板、放射線検出器及び放射線遮蔽板の製造方法 |
JP4429444B2 (ja) * | 1999-12-24 | 2010-03-10 | 株式会社日立メディコ | シンチレータ、それを用いた放射線検出器及びx線ct装置 |
FR2874021B1 (fr) | 2004-08-09 | 2006-09-29 | Saint Gobain Cristaux Detecteu | Materiau scintillateur dense et rapide a faible luminescence retardee |
CA2616098A1 (en) * | 2005-07-25 | 2007-02-08 | Saint-Gobain Ceramics & Plastics, Inc. | Rare earth oxysulfide scintillator and methods for producing same |
JP2008143726A (ja) * | 2006-12-06 | 2008-06-26 | Japan Fine Ceramics Center | 多結晶透明y2o3セラミックス及びその製造方法 |
WO2012066425A2 (en) | 2010-11-16 | 2012-05-24 | Saint-Gobain Cristaux Et Detecteurs | Scintillation compound including a rare earth element and a process of forming the same |
JP2012136667A (ja) * | 2010-12-27 | 2012-07-19 | Tohoku Univ | シンチレータ用発光材料、それを用いたシンチレータ及びそれを用いた放射線検出器並びに放射線検査装置 |
CN105330289B (zh) * | 2014-08-14 | 2018-08-31 | 清华大学 | 一种硫氧化钆(Gd2O2S)闪烁陶瓷制备方法 |
CN112358296A (zh) | 2014-08-14 | 2021-02-12 | 清华大学 | 一种硫氧化钆闪烁陶瓷制备方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3640887A (en) * | 1970-04-06 | 1972-02-08 | Gen Electric | Transparent zirconia- hafnia- and thoria-rare earth ceramics |
US4040845A (en) * | 1976-03-04 | 1977-08-09 | The Garrett Corporation | Ceramic composition and crucibles and molds formed therefrom |
JPS5930882A (ja) * | 1982-06-18 | 1984-02-18 | ゼネラル・エレクトリツク・カンパニイ | 希土類添加イツトリア−ガドリニアセラミツクシンチレ−タおよびその製法 |
-
1983
- 1983-05-12 IL IL68676A patent/IL68676A/xx not_active IP Right Cessation
- 1983-06-11 DE DE8383105749T patent/DE3368773D1/de not_active Expired
- 1983-06-11 EP EP83105749A patent/EP0097296B1/de not_active Expired
-
1988
- 1988-04-05 JP JP63082411A patent/JPS6438491A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
IL68676A0 (en) | 1983-09-30 |
JPS6438491A (en) | 1989-02-08 |
EP0097296B1 (de) | 1986-12-30 |
IL68676A (en) | 1986-07-31 |
EP0097296A1 (de) | 1984-01-04 |
JPH0262596B2 (de) | 1990-12-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8128 | New person/name/address of the agent |
Representative=s name: SIEB, R., DIPL.-CHEM. DR.RER.NAT., PAT.-ANW., 6947 |
|
8320 | Willingness to grant licences declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |