IL68642A - Rare earth ceramic scintillator - Google Patents

Rare earth ceramic scintillator

Info

Publication number
IL68642A
IL68642A IL68642A IL6864283A IL68642A IL 68642 A IL68642 A IL 68642A IL 68642 A IL68642 A IL 68642A IL 6864283 A IL6864283 A IL 6864283A IL 68642 A IL68642 A IL 68642A
Authority
IL
Israel
Prior art keywords
rare earth
scintillator
radiation detector
ceramic scintillator
earth ceramic
Prior art date
Application number
IL68642A
Other languages
English (en)
Other versions
IL68642A0 (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 IL68642A0 publication Critical patent/IL68642A0/xx
Publication of IL68642A publication Critical patent/IL68642A/xx

Links

Classifications

    • 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
    • C04B35/622—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
    • 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
    • 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
    • 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
    • C04B2235/3225—Yttrium oxide 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
    • C04B2235/65—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
    • C04B2235/6581—Total pressure below 1 atmosphere, e.g. vacuum
    • 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
IL68642A 1982-06-18 1983-05-09 Rare earth ceramic scintillator IL68642A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/389,828 US4525628A (en) 1982-06-18 1982-06-18 Rare earth ceramic scintillator

Publications (2)

Publication Number Publication Date
IL68642A0 IL68642A0 (en) 1983-09-30
IL68642A true IL68642A (en) 1986-03-31

Family

ID=23539885

Family Applications (1)

Application Number Title Priority Date Filing Date
IL68642A IL68642A (en) 1982-06-18 1983-05-09 Rare earth ceramic scintillator

Country Status (5)

Country Link
US (1) US4525628A (xx)
EP (1) EP0097300B1 (xx)
JP (1) JPS5927283A (xx)
DE (1) DE3376883D1 (xx)
IL (1) IL68642A (xx)

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JP3332200B2 (ja) * 1995-11-29 2002-10-07 日立金属株式会社 Ｘ線ｃｔ用放射線検出器
US5882547A (en) * 1996-08-16 1999-03-16 General Electric Company X-ray scintillators and devices incorporating them
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DE69819367T3 (de) 1997-12-24 2008-01-17 Hitachi Medical Corp. Leuchtstoffe, strahlungsdetektoren und damit hergestellter röntgen-computertomograph
US6384417B1 (en) * 1998-09-30 2002-05-07 Kabushiki Kaisha Toshiba Ceramic scintillator, method for producing same, and x-ray detector and x-ray CT imaging equipment using same
US6504156B1 (en) 1999-07-16 2003-01-07 Kabushiki Kaisha Toshiba Ceramic scintillator material and manufacturing method thereof, and radiation detector therewith and radiation inspection apparatus therewith
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
US6362481B1 (en) * 1999-10-07 2002-03-26 General Electric Company X-ray detector apparatus with reduced thermal expansivity
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US6437336B1 (en) 2000-08-15 2002-08-20 Crismatec Scintillator crystals and their applications and manufacturing process
US6496250B1 (en) 2000-09-29 2002-12-17 General Electric Company Combinatorial method foe development of optical ceramics
US6498828B2 (en) * 2000-12-15 2002-12-24 General Electric Company System and method of computer tomography imaging using a cerium doped lutetium orthosilicate scintillator
US6585913B2 (en) 2001-07-30 2003-07-01 General Electric Company Scintillator compositions of alkali and rare-earth tungstates
US6793848B2 (en) * 2001-10-11 2004-09-21 General Electric Company Terbium or lutetium containing garnet scintillators having increased resistance to radiation damage
US7008558B2 (en) * 2001-10-11 2006-03-07 General Electric Company Terbium or lutetium containing scintillator compositions having increased resistance to radiation damage
US6858159B2 (en) 2002-03-28 2005-02-22 General Electric Company Titanium-doped hafnium oxide scintillator and method of making the same
JP4836456B2 (ja) * 2003-02-27 2011-12-14 株式会社東芝 Ｘ線検出器とそれを用いたｘ線検査装置
US7054408B2 (en) * 2003-04-30 2006-05-30 General Electric Company CT detector array having non pixelated scintillator array
US7060982B2 (en) * 2003-09-24 2006-06-13 Hokushin Corporation Fluoride single crystal for detecting radiation, scintillator and radiation detector using the single crystal, and method for detecting radiation
US7180068B1 (en) 2004-06-09 2007-02-20 Radiation Monitoring Devices, Inc. Scintillation materials with reduced afterglow and method of preparation
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US8299436B2 (en) * 2005-06-29 2012-10-30 General Electric Company High energy resolution scintillators having high light output
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US7274023B2 (en) * 2005-10-12 2007-09-25 General Electric Company Gamma-radiation detector module for portal applications
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US20080011953A1 (en) * 2006-07-11 2008-01-17 General Electric Company Scintillator composition, article, and associated method
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Also Published As

Publication number Publication date
JPH0350991B2 (xx) 1991-08-05
EP0097300B1 (en) 1988-06-01
JPS5927283A (ja) 1984-02-13
DE3376883D1 (en) 1988-07-07
IL68642A0 (en) 1983-09-30
EP0097300A1 (en) 1984-01-04
US4525628A (en) 1985-06-25

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