SCINTILLATOR CRYSTALS, METHOD FOR MAKING SAME, USE THEREOF

WIPO Patent Application WO2001060944

A3

The invention concerns an inorganic scintillator material of general composition M1-xCexCl3, wherein: M is selected among lanthanides or lanthanide mixtures, preferably among the elements or mixtures of elements of the group consisting of Y, La, Gd, Lu, in particular among the elements or mixtures of elements of the group consisting of La, Gd and Lu; and x is the molar rate of substitution of M with cerium, x being not less than 1 mol %and strictly less than 100 mol %. The invention also concerns a method for growing said monocrystalline scintillator material, and the use of said scintillator material as component of a scintillating detector in particular for industrial and medical purposes and in the oil industry.

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DORENBOS PIETER (NL)
VAN EIJK CAREL WILHELM EDUARD (NL)
GUEDEL HANS-ULRICH (CH)
KRAEMER KARL WILHELM (CH)
VAN LOEF EDGAR VALENTIJN DIEUW (NL)

PCT/EP2001/001837

February 14, 2002

February 16, 2001

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STICHTING TECH WETENSCHAPP (NL)
DORENBOS PIETER (NL)
EIJK CAREL WILHELM EDUARD VAN (NL)
GUEDEL HANS ULRICH (CH)
KRAEMER KARL WILHELM (CH)
LOEF EDGAR VALENTIJN DIEUWER V (NL)

C01F17/253; C09K11/00; C09K11/08; G01T1/20; C09K11/77; C09K11/85; C30B29/12; (IPC1-7): C09K11/85; C01F17/00; G01T1/202

US4761347A	1988-08-02
US5015860A	1991-05-14

DATABASE CHEMABS [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; PELLETIER-ALLARD, N. ET AL: "Multiphoton excitations in neodymium chlorides", XP002176464, retrieved from STN Database accession no. 107:225257 CA
DATABASE CHEMABS [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; SKJAERET, J ET AL: "Competing interactions and properties of cerium lanthanum chloride (Ce1-xLaxCl3)", XP002176465, retrieved from STN Database accession no. 119:284498 CA
O. GUILLOT-NOËL ET AL.: "Optical scintillation properties of cerium-doped LaCl3, LuBr3 and LuCl3", JOURNAL OF LUMINESCENCE, vol. 85, 1999, pages 21 - 35, XP001023576
DATABASE INSPEC [online] INSTITUTE OF ELECTRICAL ENGINEERS, STEVENAGE, GB; VOLOSHINOVSKII A S ET AL: "Luminescence properties of cerium chloride", XP002150542, Database accession no. 4726740

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