IL98438A - Flashing material with compensation for hole traps - Google Patents

Flashing material with compensation for hole traps

Info

Publication number
IL98438A
IL98438A IL9843891A IL9843891A IL98438A IL 98438 A IL98438 A IL 98438A IL 9843891 A IL9843891 A IL 9843891A IL 9843891 A IL9843891 A IL 9843891A IL 98438 A IL98438 A IL 98438A
Authority
IL
Israel
Prior art keywords
scintillator
luminescent
afterglow
garnet
hole
Prior art date
Application number
IL9843891A
Other languages
English (en)
Hebrew (he)
Other versions
IL98438A0 (en
Original Assignee
Gen Electric
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gen Electric filed Critical Gen Electric
Publication of IL98438A0 publication Critical patent/IL98438A0/xx
Publication of IL98438A publication Critical patent/IL98438A/en

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
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • 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 materials, e.g. electroluminescent or chemiluminescent
    • C09K11/08—Luminescent materials, e.g. electroluminescent or chemiluminescent containing inorganic luminescent materials
    • C09K11/77—Luminescent materials, e.g. electroluminescent or chemiluminescent containing inorganic luminescent materials containing rare earth metals
    • C09K11/7766—Luminescent materials, e.g. electroluminescent or chemiluminescent containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
    • C09K11/7776—Vanadates; Chromates; Molybdates; Tungstates
    • 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
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3229—Cerium oxides or oxide-forming salts thereof
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3241—Chromium oxides, chromates, or oxide-forming salts thereof
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3286—Gallium oxides, gallates, indium oxides, indates, thallium oxides, thallates or oxide forming salts thereof, e.g. zinc gallate
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/604—Pressing at temperatures other than sintering temperatures
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6562—Heating rate
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/658—Atmosphere during thermal treatment
    • C04B2235/6583—Oxygen containing atmosphere, e.g. with changing oxygen pressures
    • C04B2235/6585—Oxygen containing atmosphere, e.g. with changing oxygen pressures at an oxygen percentage above that of air
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/658—Atmosphere during thermal treatment
    • C04B2235/6587—Influencing the atmosphere by vaporising a solid material, e.g. by using a burying of sacrificial powder
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
    • C04B2235/661—Multi-step sintering
    • C04B2235/662—Annealing after sintering
    • C04B2235/663—Oxidative annealing
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/76—Crystal structural characteristics, e.g. symmetry
    • C04B2235/762—Cubic symmetry, e.g. beta-SiC
    • C04B2235/764—Garnet structure A3B2(CO4)3
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9646—Optical properties
    • C04B2235/9653—Translucent or transparent ceramics other than alumina

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Measurement Of Radiation (AREA)
  • Luminescent Compositions (AREA)
IL9843891A 1990-06-29 1991-06-11 Flashing material with compensation for hole traps IL98438A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US54682490A 1990-06-29 1990-06-29

Publications (2)

Publication Number Publication Date
IL98438A0 IL98438A0 (en) 1992-07-15
IL98438A true IL98438A (en) 1995-08-31

Family

ID=24182181

Family Applications (1)

Application Number Title Priority Date Filing Date
IL9843891A IL98438A (en) 1990-06-29 1991-06-11 Flashing material with compensation for hole traps

Country Status (6)

Country Link
US (2) US5318722A (de)
EP (1) EP0467044A3 (de)
JP (1) JPH0776336B2 (de)
CN (1) CN1034102C (de)
CA (1) CA2042147A1 (de)
IL (1) IL98438A (de)

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CA2042263A1 (en) * 1990-06-29 1991-12-30 Charles D. Greskovich Transparent polycrystalline garnets
CA2042147A1 (en) * 1990-06-29 1991-12-30 Veneta G. Tsoukala Hole-trap-compensated scintillator material
US5391876A (en) * 1990-06-29 1995-02-21 General Electric Company Hole-trap-compensated scintillator material and computed tomography machine containing the same
US5202777A (en) * 1991-05-31 1993-04-13 Hughes Aircraft Company Liquid crystal light value in combination with cathode ray tube containing a far-red emitting phosphor
JP2770708B2 (ja) * 1992-06-30 1998-07-02 日亜化学工業株式会社 赤色ないし赤外発光蛍光体及びこれを用いた液晶ライトバルブｃｒｔ
US5446286A (en) * 1994-08-11 1995-08-29 Bhargava; Rameshwar N. Ultra-fast detectors using doped nanocrystal insulators
EP0795631A1 (de) * 1996-02-23 1997-09-17 Saint-Gobain/Norton Industrial Ceramics Corporation Szintillationskristalle mit reduzierter Nachleuchtzeit und Verfahren zu deren Herstellung
WO1999033934A1 (en) * 1997-12-24 1999-07-08 Hitachi Medical Corporation Phosphors, and radiation detectors and x-ray ct unit made by using the same
US6246744B1 (en) * 1999-05-06 2001-06-12 General Electric Company Cubic garnet host with PR activator as a scintillator material
US6361735B1 (en) * 1999-09-01 2002-03-26 General Electric Company Composite ceramic article and method of making
JP4521929B2 (ja) * 2000-04-26 2010-08-11 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
DE10044357A1 (de) * 2000-09-07 2002-03-21 Heimann Systems Gmbh & Co Detektoranordnung zur Detektion von Röntgenstrahlen
GB0119094D0 (en) * 2001-08-04 2001-09-26 Bank Of England Improved luminescent phosphor
US6996137B2 (en) * 2002-08-06 2006-02-07 Raytheon Company Solid-state devices with radial dopant valence profile
DE10238398A1 (de) * 2002-08-22 2004-02-26 Philips Intellectual Property & Standards Gmbh Vorrichtung zur Erzeugung von Bildern und/oder Projektionen
KR20050044617A (ko) * 2002-09-27 2005-05-12 가부시키가이샤 무라타 세이사쿠쇼 테르븀계 상자성 가닛 단결정 및 자기 광학 장치
US20060180792A1 (en) * 2003-06-26 2006-08-17 Prime Technology Llc Security marker having overt and covert security features
CZ302527B6 (cs) * 2003-08-28 2011-06-29 Fyzikální Ústav Av Cr Scintilátor na bázi wolframanu olovnatého s posunutou stechiometrií
US7279120B2 (en) 2003-09-04 2007-10-09 Intematix Corporation Doped cadmium tungstate scintillator with improved radiation hardness
US7180068B1 (en) 2004-06-09 2007-02-20 Radiation Monitoring Devices, Inc. Scintillation materials with reduced afterglow and method of preparation
US7759645B1 (en) 2004-06-09 2010-07-20 Charles Brecher Scintillation materials with reduced afterglow and method of preparation
SE528345C2 (sv) * 2004-06-16 2006-10-24 Howard Leight Ind Llc Kåpa avsedd att användas som hörselskydd, sätt att framställa densamma samt användning av en sådan kåpa
US7449128B2 (en) * 2004-06-21 2008-11-11 General Electric Company Scintillator nanoparticles and method of making
EP1912916A1 (de) * 2005-07-25 2008-04-23 Saint-Gobain Ceramics and Plastics, Inc. Seltenerdmetalloxidsulfid-szintillator und herstellungsverfahren dafür
US20080011953A1 (en) * 2006-07-11 2008-01-17 General Electric Company Scintillator composition, article, and associated method
EP2042052A1 (de) * 2007-09-25 2009-04-01 RC Tritec AG Schmuckstein
EP2245113A4 (de) * 2008-02-08 2011-02-23 Univ Georgia Res Found Phosphoreszierende zusammensetzungen, verfahren zur herstellung der zusammensetzungen sowie verfahren zur verwendung der zusammensetzungen
CN101649486B (zh) * 2008-08-11 2013-03-20 元亮科技有限公司 提拉法生长铽镓石榴石(tgg)晶体的装置及其方法
CN102317811B (zh) 2008-12-30 2014-08-06 圣戈本陶瓷及塑料股份有限公司 陶瓷闪烁体本体和闪烁装置
WO2010078220A2 (en) 2008-12-30 2010-07-08 Saint-Gobain Ceramics & Plastics, Inc. Scintillation device and method of producing a ceramic scintillator body
CN102317409B (zh) 2008-12-30 2016-01-20 圣戈本陶瓷及塑料股份有限公司 陶瓷闪烁体本体和闪烁装置
WO2010078221A2 (en) 2008-12-30 2010-07-08 Saint-Gobain Ceramics & Plastics, Inc. Scintillation device and method of producing a ceramic scintillator body
US8431885B2 (en) 2010-05-19 2013-04-30 Schlumberger Technology Corporation Gamma-ray detectors for downhole applications
JP5593492B2 (ja) * 2009-09-02 2014-09-24 太平洋セメント株式会社 長残光蛍光体
FR2967420B1 (fr) * 2010-11-16 2014-01-17 Saint Gobain Cristaux Et Detecteurs Materiau scintillateur a faible luminescence retardee
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
US9664799B2 (en) 2013-06-14 2017-05-30 University Of Tennessee Research Foundation Radiation detector for imaging applications with stabilized light output
RU2584187C1 (ru) * 2015-01-19 2016-05-20 Федеральное государственное бюджетное учреждение науки Институт химии высокочистых веществ им. Г.Г. Девятых Российской академии наук (ИХВВ РАН) Способ получения прозрачной керамики алюмоиттриевого граната
US10197685B2 (en) * 2015-12-01 2019-02-05 Siemens Medical Solutions Usa, Inc. Method for controlling gallium content in gadolinium-gallium garnet scintillators
US10961452B2 (en) 2015-12-01 2021-03-30 Siemens Medical Solutions Usa, Inc. Method for controlling gallium content in gadolinium-gallium garnet scintillators
CN106673639B (zh) * 2017-01-03 2020-01-14 中国科学院上海光学精密机械研究所 共掺杂钇铝石榴石闪烁透明陶瓷及其制备方法
CN108585853B (zh) * 2017-12-11 2021-12-24 上海大学 一种铕掺杂氧化钪闪烁体及其制备方法和用途
CN114616491B (zh) 2019-10-28 2025-10-28 卢克西姆解决方案有限责任公司 包含多价阳离子以减少余辉的CsI(Tl)闪烁体晶体，以及包括闪烁晶体的辐射检测装置

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CA2042147A1 (en) * 1990-06-29 1991-12-30 Veneta G. Tsoukala Hole-trap-compensated scintillator material
US5057692A (en) * 1990-06-29 1991-10-15 General Electric Company High speed, radiation tolerant, CT scintillator system employing garnet structure scintillators

Also Published As

Publication number Publication date
JPH04288393A (ja) 1992-10-13
CA2042147A1 (en) 1991-12-30
EP0467044A2 (de) 1992-01-22
JPH0776336B2 (ja) 1995-08-16
US5318722A (en) 1994-06-07
CN1034102C (zh) 1997-02-26
CN1057665A (zh) 1992-01-08
IL98438A0 (en) 1992-07-15
US5360557A (en) 1994-11-01
EP0467044A3 (en) 1993-05-12

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