WO2005103760A1 - Materiau scintillateur a base de terre rare a bruit de fond nucleaire reduit - Google Patents
Materiau scintillateur a base de terre rare a bruit de fond nucleaire reduit Download PDFInfo
- Publication number
- WO2005103760A1 WO2005103760A1 PCT/FR2005/050231 FR2005050231W WO2005103760A1 WO 2005103760 A1 WO2005103760 A1 WO 2005103760A1 FR 2005050231 W FR2005050231 W FR 2005050231W WO 2005103760 A1 WO2005103760 A1 WO 2005103760A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- material according
- uranium
- elements
- rare earth
- thorium
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/12—Halides
Definitions
- the present invention relates to a reduced nuclear background scintillator material, generally of the scintillator crystal type and its use, particularly in gamma and X-ray detectors.
- Scintillator crystals are widely used in gamma-ray detectors, X-rays , cosmic rays and particles whose energy is of the order of 1 keV and also greater than this value.
- a scintillator crystal is a transparent crystal in the wavelength range of scintillation, which responds to incident radiation by the emission of a light pulse. From such crystals, generally in the form of single crystals, detectors can be made in which the light emitted by the crystal that the detector comprises is coupled to a light detection means and produces an electrical signal proportional to the number of pulses.
- Such detectors are used especially in the industry for measurements of thickness or weight, in the fields of nuclear medicine, physics, chemistry, petroleum research, the detection of dangerous or illegal materials.
- New scintillating crystals based on rare earth halides have recently been developed. This is e.g. lanthanum chloride doped Ce (LACI 3: Ce), lanthanum bromide doped Ce (LaBr 3: Ce) K 2 Lal 5 doped Ce.
- A is an alkali metal element or a mixture of alkali metal elements such as Li, Na, K, Cs, Rb, preferably Li, Na, Cs;
- Ln is one or a mixture of rare earths of valence 3+, in particular Se, Y, La, Gd, Lu and
- X is one or more halogen, such as Cl, Br, I, these compositions may also be doped with Ce or Pr.
- These novel materials exhibit desirable characteristics for scintillation applications such as: density and stopping power greater than Nal: TI, fast scintillation decay time, and good energy resolution.
- LaCI 3 10% Ce
- Ce and Nal TI scintillators in gamma-ray spectrometry / Marcin Balcerzyk; Marek Moszynski; Maciej Kapusta, Nuclear Instruments & Radiation easurements, Section A.
- LaCI 3 10% Ce
- a person skilled in the art usually designates a La and Ce chloride in which the number of moles of Ce represents 10% of the total mole number of Ce + La. It is also said that the Molar substitution rate of La by Ce is 10%.
- the object of the invention is therefore a method for reducing by at least a factor of 10 this nuclear background noise, corresponding to energy alpha radiation between 4 and 8 MeV.
- Uranium For a LaCI 3 crystal with a count rate of 0.89 strokes / cc / sec or 0.89 Bq / cc, the amount of Uranium corresponding to this contamination is 1.4 ppm, which is easily detectable in GD-MS.
- the Applicant has found that the intensity of the radiation emitted by a raw material between 30 and 120 KeV allowed to identify materials rich in uranium daughter elements, which more conventional analytical techniques (ie GD-MS that comes from "Glow discharge mass spectroscopy”) do not allow. Moreover, it appeared that most of the radioactivity was concentrated in the rare earth salts alone, and in particular in those of strong ionic radius and of valence III (in particular the lanthanum salts). It also appeared that the uranium element content of Uranium varied considerably from one rare earth supplier to another, probably according to the ores and mines from which the rare earth salts were derived and also according to the process used to separate rare earth salts from each other.
- the invention relates to a scintillator material, generally of the single-crystal type, comprising a rare earth halide essentially of the chloride, bromide, iodide or fluoride type, generally of formula A n LnpX ( 3 p + n) in which Ln represents a or more rare earth (s), X represents one or more halogen atom (s) selected from F, Cl, Br or I, and A represents one or more alkali (s) such as K, Li, Na, Rb or Cs, n and p representing values such that - n, which may be zero, is less than or equal to 2p, - p is greater than or equal to 1.
- a scintillator material generally of the single-crystal type, comprising a rare earth halide essentially of the chloride, bromide, iodide or fluoride type, generally of formula A n LnpX ( 3 p + n) in which Ln represents a or more
- the rare earths (in the form of halides) concerned are those in column 3 (according to the new notation as mentioned in the Handbook of Chemistry and Physics 1994-1995, 75 th edition) of the periodic table of the elements, including Se, Y, La, and Lanthanides from Ce to Lu. More particularly concerned are the halides of Y, La, Gd and Lu, in particular doped with Ce or Pr (the term “dop” ant "refers here to a rare earth generally minority in mole, replacing one or more rare earths generally majority in mole, the minority and majority being understood under the acronym Ln).
- the inorganic scintillator material according to the invention has a son element content of Uranium and Thorium sufficiently low that the activity resulting from the alpha radiation of these elements is less than 0.7 Bq / cc (it can therefore include these elements son of the 'Uranium and Thorium, but in small enough quantities).
- the rare earth salts used for its synthesis may have undergone a purification process intended to extract the son elements of uranium and thorium. It is usually in the form of single crystal.
- the monocrystal may be large, that is to say at least 1 cm 3 , or even at least 10 cm 3 and even at least 200 cm 3 . This monocrystal can then be cut to sizes adapted to the desired applications.
- the material according to the invention is particularly suitable as scintillator of a detector used especially in the industry for measurements of thickness or weight, in the fields of nuclear medicine, physics, chemistry, research oil. Because of its sensitivity, it is particularly suitable for searching for traces of radioactive material, for example in radio-protection and in search of dangerous or illicit materials.
- This anhydrous LaCI 3 is melted. Crystals are obtained according to conventional growth methods such as Bridgman or Czochralski. A cylindrical detector of 12 mm by 12 mm is then produced, which is then measured in the lead chamber in a gamma ray energy range of 1.5 to 2.5 MeV, ie at alpha rays from 5 to 8 MeV. The measured background noise corresponds to an activity of 14 Bq / cc.
- This anhydrous LaBr 3 is melted. Crystals are obtained according to conventional growth methods such as Bridgman or Czochralski. The background of these crystals is then measured in a range of energy corresponding to gammas of 1.45 to 2.3 MeV, that is to say to alpha rays of 5 to 8 MeV. The measured background noise corresponds to an activity of 14 Bq / cc.
- This anhydrous LaCI 3 is melted. Crystals are obtained according to conventional growth methods such as Bridgman or Czochralski. The background of these crystals is then measured in a range of energy corresponding to gamma from 1.5 to 2.5 MeV, that is to say to alpha rays of 5 to 8 MeV. The background noise measured corresponds to an activity of 0.02 Bq / cc.
- Example 4 From lanthanum oxide of the supplier B extracted from the clay minerals of southern China, 10 kg of anhydrous LaCI 3 and 10 kg of anhydrous LaBr 3 are synthesized. The Uranium content of this salt is ⁇ 0.005 ppm as measured by GD-MS. 10 g of this LaCI 3 are then mixed with 90 g of LaBr 3 to obtain the composition La (Clo, ⁇ , Br 0) 9) 3. Crystals are obtained according to conventional growth methods such as Bridgman. The background of these crystals is then measured in a range of energy corresponding to gammas of 1.45 to 2.3 MeV, that is to say at alphas of 5 to 8 MeV. The background noise measured corresponds to an activity of 0.02 Bq / cc.
- This anhydrous LaC is melted.
- Crystals are obtained according to conventional growth methods such as Bridgman or Czochralski.
- the background of these crystals is then measured in a range of energy corresponding to gammas of 1.5 to 2.5 MeV, ie to alphas of 5 to 8 MeV.
- the background noise measured corresponds to an activity of 0.03 Bq / cc.
- This anhydrous LaF 3 is melted. Crystals are obtained according to conventional growth methods such as Bridgman or Czochralski. The background of these crystals is then measured in a range of energy corresponding to alpha-rays of 5 to 8 MeV. The background noise measured corresponds to an activity of 0.02 Bq / cc.
Abstract
Description
Claims
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020067021299A KR101204209B1 (ko) | 2004-04-14 | 2005-04-12 | 핵 배경 소음이 감소된 희토류 기재 섬광체 물질 |
PL05746943T PL1738199T3 (pl) | 2004-04-14 | 2005-04-12 | Materiał scyntylacyjny oparty na pierwiastkach ziem rzadkich ze zredukowanym tłem szumów jądrowych |
EA200601902A EA009229B1 (ru) | 2004-04-14 | 2005-04-12 | Материал-сцинтиллятор на основе редкоземельных элементов с пониженным радиоактивным фоновым шумом |
EP05746943A EP1738199B1 (fr) | 2004-04-14 | 2005-04-12 | Materiau scintillateur a base de terre rare a bruit de fond nucleaire reduit |
UAA200611952A UA87683C2 (uk) | 2004-04-14 | 2005-04-12 | Матеріал-сцинтилятор на основі рідкісноземельних елементів зі зниженим радіоактивним фоновим шумом, спосіб його одержання, детектор та його застосування |
DE602005004395T DE602005004395T2 (de) | 2004-04-14 | 2005-04-12 | Scintillatormaterial auf der basis von seltenerde mit verringertem kernhintergrund |
JP2007507825A JP5038127B2 (ja) | 2004-04-14 | 2005-04-12 | 核バックグラウンドノイズの低減を伴う希土類系シンチレーター材料 |
CN2005800113028A CN1942783B (zh) | 2004-04-14 | 2005-04-12 | 具有低核本底的稀土基闪烁剂材料 |
CA002562646A CA2562646A1 (fr) | 2004-04-14 | 2005-04-12 | Materiau scintillateur a base de terre rare a bruit de fond nucleaire reduit |
US11/578,379 US7608201B2 (en) | 2004-04-14 | 2005-04-12 | Scintillator material based on rare earth with a reduced nuclear background |
IL178206A IL178206A (en) | 2004-04-14 | 2006-09-20 | Scintillator material based on rare earth with a reduced nuclear background |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0403897 | 2004-04-14 | ||
FR0403897A FR2869115B1 (fr) | 2004-04-14 | 2004-04-14 | Materiau scintillateur a base de terre rare a bruit de fond nucleaire reduit |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005103760A1 true WO2005103760A1 (fr) | 2005-11-03 |
Family
ID=34946416
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2005/050231 WO2005103760A1 (fr) | 2004-04-14 | 2005-04-12 | Materiau scintillateur a base de terre rare a bruit de fond nucleaire reduit |
Country Status (14)
Country | Link |
---|---|
US (1) | US7608201B2 (fr) |
EP (1) | EP1738199B1 (fr) |
JP (1) | JP5038127B2 (fr) |
KR (1) | KR101204209B1 (fr) |
CN (1) | CN1942783B (fr) |
AT (1) | ATE384271T1 (fr) |
CA (1) | CA2562646A1 (fr) |
DE (1) | DE602005004395T2 (fr) |
EA (1) | EA009229B1 (fr) |
FR (1) | FR2869115B1 (fr) |
IL (1) | IL178206A (fr) |
PL (1) | PL1738199T3 (fr) |
UA (1) | UA87683C2 (fr) |
WO (1) | WO2005103760A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008013762A (ja) * | 2006-06-30 | 2008-01-24 | General Electric Co <Ge> | ハロゲン化ランタニド系シンチレータ組成物並びに関連方法及び製品 |
FR2948379A1 (fr) * | 2009-07-21 | 2011-01-28 | Saint Gobain Cristaux Et Detecteurs | Scintillateur en halogenure de terre rare revetu d'un absorbeur ou reflecteur de lumiere |
US20110042616A1 (en) * | 2009-08-24 | 2011-02-24 | Christoph Seitz | Scintillation materials in single crystalline, polycrystalline and ceramic form |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2847594B1 (fr) * | 2002-11-27 | 2004-12-24 | Saint Gobain Cristaux Detecteu | Preparation de blocs d'halogenure de terre rare |
FR2855830B1 (fr) * | 2003-06-05 | 2005-07-08 | Stichting Tech Wetenschapp | Cristaux scintillateurs du type iodure de terre rare |
CA2622381C (fr) * | 2005-09-16 | 2014-05-20 | Stichting Voor De Technische Wetenschappen | Scintillateur rapide a rendement lumineux eleve |
US20070131866A1 (en) * | 2005-12-14 | 2007-06-14 | General Electric Company | Activated alkali metal rare earth halides and articles using same |
US20080131347A1 (en) * | 2006-12-04 | 2008-06-05 | General Electric Company | Scintillation compositions and method of manufacture thereof |
US7767975B2 (en) * | 2007-12-04 | 2010-08-03 | Saint-Gobain Cristaux Et Detecteurs | Ionizing radiation detector |
DE102008011665A1 (de) * | 2008-02-28 | 2009-09-10 | Schott Ag | Verfahren zur Kontrolle der alpha-Strahlung bei Abdeckgläsern für strahlungsempfindliche Sensoren und Vorrichtung zur Durchführung des Verfahrens |
FR2929296B1 (fr) | 2008-03-31 | 2011-01-21 | Saint Gobain Cristaux Detecteurs | Recuit de monocristaux |
US20100224798A1 (en) * | 2008-09-11 | 2010-09-09 | Stichting Voor De Technische Wetenschappen | Scintillator based on lanthanum iodide and lanthanum bromide |
CN102459508A (zh) * | 2009-06-03 | 2012-05-16 | 株式会社德山 | 闪烁体 |
JP5127778B2 (ja) * | 2009-06-05 | 2013-01-23 | 株式会社トクヤマ | フッ化物結晶、真空紫外発光素子及び真空紫外発光シンチレーター |
US20120286204A1 (en) * | 2009-12-25 | 2012-11-15 | Noriaki Kawaguchi | Metal fluoride crystal, vacuum ultraviolet light emitting element, and vacuum ultraviolet light emitting scintillator |
FR2954760B1 (fr) | 2009-12-28 | 2013-12-27 | Saint Gobain Cristaux Et Detecteurs | Scintillateur en halogenure de terre rare cristallin a face sensible polie |
KR101276732B1 (ko) * | 2010-07-20 | 2013-06-20 | 경북대학교 산학협력단 | 방사선 센서용 섬광체, 및 그 제조 및 응용 방법 |
US8519347B2 (en) * | 2010-08-10 | 2013-08-27 | Northwestern University | Methods and compositions for the detection of X-ray and gamma-ray radiation |
JP5566218B2 (ja) * | 2010-08-11 | 2014-08-06 | 株式会社トクヤマ | フッ化物単結晶、真空紫外発光素子、シンチレーター及びフッ化物単結晶の製造方法 |
FR2978251B1 (fr) | 2011-07-19 | 2014-04-18 | Saint Gobain Cristaux Et Detecteurs | Detecteur a scintillateur conique |
US11555147B2 (en) * | 2011-10-10 | 2023-01-17 | Siemens Medical Solutions Usa, Inc. | Metal halide scintillators with reduced hygroscopicity and method of making the same |
FR3004467B1 (fr) | 2013-04-12 | 2016-05-27 | Saint-Gobain Cristaux Et Detecteurs | Fabrication d'une elpasolite stoechiometrique |
CN105378031B (zh) * | 2013-07-17 | 2019-04-19 | 皇家飞利浦有限公司 | 用于成像系统中的ce3+激活的发光组合物 |
US9334444B1 (en) | 2014-02-11 | 2016-05-10 | Sandia Corporation | Sorohalide scintillators, phosphors, and uses thereof |
FR3022555B1 (fr) | 2014-06-23 | 2017-12-22 | Saint-Gobain Cristaux Et Detecteurs | Materiau luminescent a couche photonique texturee |
US10379230B2 (en) | 2015-06-03 | 2019-08-13 | Northwestern University | Chalco-phosphate-based hard radiation detectors |
CN105293945A (zh) * | 2015-11-16 | 2016-02-03 | 宁波大学 | 含稀土离子掺杂RbLa2Cl7微晶的玻璃薄膜及其制备方法 |
WO2019137961A1 (fr) | 2018-01-11 | 2019-07-18 | Stichting Voor De Technische Wetenschappen | Matériau scintillateur comprenant un halogénure d'alcalino-terreux cristallin dopé par un activateur et co-dopé par sm2+ |
JP7232048B2 (ja) | 2016-03-04 | 2023-03-02 | コンティネンタル・テーベス・アクチエンゲゼルシヤフト・ウント・コンパニー・オッフェネ・ハンデルスゲゼルシヤフト | 車両のロール角を測定するための方法及び装置 |
CN109988577B (zh) * | 2017-12-27 | 2020-12-25 | 有研稀土新材料股份有限公司 | 稀土卤化物闪烁材料及其应用 |
CN111722266B (zh) * | 2020-06-16 | 2023-06-09 | 中国石油大学(华东) | 一种用于氯化镧探测器测量本底扣除的方法 |
FR3114104A1 (fr) | 2020-09-15 | 2022-03-18 | Saint-Gobain Cristaux Et Detecteurs | Matériau scintillateur comprenant une pérovskite d’halogénure dopée |
WO2022165509A1 (fr) * | 2021-01-29 | 2022-08-04 | Georgia State University Research Foundation | Identification et extraction de métal des terres rares à partir d'opérations minières |
CN114381255B (zh) * | 2021-10-25 | 2022-10-11 | 中国科学院福建物质结构研究所 | 一种放射性医用同位素标记的稀土掺杂纳米材料和pet显像诊疗剂及其制备方法和应用 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001060944A2 (fr) * | 2000-02-17 | 2001-08-23 | Stichting Voor De Technische Wetenschappen | Cristaux scintillateurs, procede de fabrication, application de ces cristaux |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6121180A (ja) * | 1984-07-09 | 1986-01-29 | Fuji Photo Film Co Ltd | 放射線像変換方法およびその方法に用いられる放射線像変換パネル |
JPS6121183A (ja) * | 1984-07-09 | 1986-01-29 | Fuji Photo Film Co Ltd | 螢光体およびその製造法 |
JPS6121179A (ja) * | 1984-07-10 | 1986-01-29 | Fuji Photo Film Co Ltd | 放射線像変換方法およびその方法に用いられる放射線像変換パネル |
FR2840926B1 (fr) | 2002-06-12 | 2005-03-04 | Saint Gobain Cristaux Detecteu | Utilisation d'un creuset comprenant du carbone pour la croissance de cristaux comprenant un halogenure de terre rare |
FR2847594B1 (fr) | 2002-11-27 | 2004-12-24 | Saint Gobain Cristaux Detecteu | Preparation de blocs d'halogenure de terre rare |
-
2004
- 2004-04-14 FR FR0403897A patent/FR2869115B1/fr not_active Expired - Lifetime
-
2005
- 2005-04-12 JP JP2007507825A patent/JP5038127B2/ja active Active
- 2005-04-12 WO PCT/FR2005/050231 patent/WO2005103760A1/fr active IP Right Grant
- 2005-04-12 UA UAA200611952A patent/UA87683C2/uk unknown
- 2005-04-12 EA EA200601902A patent/EA009229B1/ru not_active IP Right Cessation
- 2005-04-12 PL PL05746943T patent/PL1738199T3/pl unknown
- 2005-04-12 CA CA002562646A patent/CA2562646A1/fr not_active Abandoned
- 2005-04-12 KR KR1020067021299A patent/KR101204209B1/ko active IP Right Grant
- 2005-04-12 CN CN2005800113028A patent/CN1942783B/zh active Active
- 2005-04-12 EP EP05746943A patent/EP1738199B1/fr active Active
- 2005-04-12 US US11/578,379 patent/US7608201B2/en active Active
- 2005-04-12 AT AT05746943T patent/ATE384271T1/de not_active IP Right Cessation
- 2005-04-12 DE DE602005004395T patent/DE602005004395T2/de active Active
-
2006
- 2006-09-20 IL IL178206A patent/IL178206A/en not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001060944A2 (fr) * | 2000-02-17 | 2001-08-23 | Stichting Voor De Technische Wetenschappen | Cristaux scintillateurs, procede de fabrication, application de ces cristaux |
Non-Patent Citations (3)
Title |
---|
BARBER W C ET AL: "Scintillator energy and flux linearity for RbGd2Br7:Ce, LaCl3;Ce, and LaBr3:Ce", 10 November 2002, 2002 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD. / 2002 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE. NORFOLK, VA, NOV. 10 - 16, 2002, IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, NEW YORK, NY : IEEE, US, PAGE(S) 936-938, ISBN: 0-7803-7636-6, XP010663678 * |
SHAH K S ET AL: "LaBr3:Ce scintillators for gamma ray spectroscopy", 2002 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD. / 2002 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE. NORFOLK, VA, NOV. 10 - 16, 2002, IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, NEW YORK, NY : IEEE, US, vol. VOL. 3 OF 3, 10 November 2002 (2002-11-10), pages 92 - 95, XP010663491, ISBN: 0-7803-7636-6 * |
VAN LOEF E V D ET AL: "Scintillation properties of LaCl3:Ce<3+> crystals: fast, efficient and high-energy-resolution scintillators", NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, 2000 IEEE LYON, FRANCE 15-20 OCT. 2000, PISCATAWAY, NJ, USA,IEEE, US, 15 October 2000 (2000-10-15), pages 6 - 31, XP010556505, ISBN: 0-7803-6503-8 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008013762A (ja) * | 2006-06-30 | 2008-01-24 | General Electric Co <Ge> | ハロゲン化ランタニド系シンチレータ組成物並びに関連方法及び製品 |
FR2948379A1 (fr) * | 2009-07-21 | 2011-01-28 | Saint Gobain Cristaux Et Detecteurs | Scintillateur en halogenure de terre rare revetu d'un absorbeur ou reflecteur de lumiere |
US8519339B2 (en) | 2009-07-21 | 2013-08-27 | Saint-Gobain Cristaux Et Detecteurs | Rare-earth halide scintillator coated with a light absorber or light reflector |
US20110042616A1 (en) * | 2009-08-24 | 2011-02-24 | Christoph Seitz | Scintillation materials in single crystalline, polycrystalline and ceramic form |
US8496851B2 (en) * | 2009-08-24 | 2013-07-30 | Christoph Seitz | Scintillation materials in single crystalline, polycrystalline and ceramic form |
Also Published As
Publication number | Publication date |
---|---|
EA200601902A1 (ru) | 2007-02-27 |
IL178206A0 (en) | 2006-12-31 |
DE602005004395T2 (de) | 2009-01-15 |
KR20070033967A (ko) | 2007-03-27 |
ATE384271T1 (de) | 2008-02-15 |
CN1942783A (zh) | 2007-04-04 |
EP1738199B1 (fr) | 2008-01-16 |
JP2007532746A (ja) | 2007-11-15 |
US20070241284A1 (en) | 2007-10-18 |
FR2869115A1 (fr) | 2005-10-21 |
KR101204209B1 (ko) | 2012-11-26 |
US7608201B2 (en) | 2009-10-27 |
FR2869115B1 (fr) | 2006-05-26 |
DE602005004395D1 (de) | 2008-03-06 |
IL178206A (en) | 2010-05-17 |
UA87683C2 (uk) | 2009-08-10 |
PL1738199T3 (pl) | 2008-06-30 |
EA009229B1 (ru) | 2007-12-28 |
CA2562646A1 (fr) | 2005-11-03 |
EP1738199A1 (fr) | 2007-01-03 |
CN1942783B (zh) | 2011-03-09 |
JP5038127B2 (ja) | 2012-10-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1738199B1 (fr) | Materiau scintillateur a base de terre rare a bruit de fond nucleaire reduit | |
EP1255796B1 (fr) | Cristaux scintillateurs, procede de fabrication, application de ces cristaux | |
EP1634103B1 (fr) | Cristaux scintillateurs du type iodure de terre rare | |
US7525100B2 (en) | Bright and fast neutron scintillators | |
CA2794807C (fr) | Elpasolites halides mixtes actives par ce3+ et scintillateur de resolution de haute energie | |
US7755054B1 (en) | Lutetium gadolinium halide scintillators | |
Nagornaya et al. | Growth of ${\rm ZnWO} _ {4} $ Crystal Scintillators for High Sensitivity $2\beta $ Experiments | |
US5876630A (en) | Scintillation material on the base of cesium iodide and method for its preparation | |
Hawrami | Large Diameter Bulk Crystal Growth and Scintillation Characterization of Thallium-Based Ternary Halide Crystals for Detection and Imaging | |
Vaněček et al. | Scintillation properties of Cs4Mg3F10 crystal grown by micro-pulling-down method | |
RU2244320C1 (ru) | Сцинтиллятор для регистрации тепловых нейтронов | |
Pereira et al. | Development of crystals based on cesium iodide for measurements of gamma radiation and alpha particles | |
Pereira et al. | DEPENDENCE OF SCINTILLATION CHARACTERISTICS IN THE CsI: Br CRYSTALS ON Br− CONCENTRATIONS UNDER GAMMA EXCITATIONS |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2005746943 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 178206 Country of ref document: IL |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2562646 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020067021299 Country of ref document: KR Ref document number: 2007507825 Country of ref document: JP Ref document number: 200580011302.8 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 3026/KOLNP/2006 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200601902 Country of ref document: EA |
|
WWP | Wipo information: published in national office |
Ref document number: 2005746943 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11578379 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 1020067021299 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 11578379 Country of ref document: US |
|
WWG | Wipo information: grant in national office |
Ref document number: 2005746943 Country of ref document: EP |