Title:
IODIDE SINGLE CRYSTAL, METHOD FOR PRODUCTION THE IODIDE SINGLE CRYSTAL, AND SCINTILLATOR COMPRISING THE IODIDE SINGLE CRYSTAL
Document Type and Number:
WIPO Patent Application WO/2008/096889
Kind Code:
A1
Abstract:
Disclosed is an iodide single crystal which has the same crystalline structure as that of LuI3, which is activated at its luminescent center RE [wherein RE represents at least one element selected from the group consisting of Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm and Yb], and wherein one or some or all of lutetium (Lu) atoms in the iodide single crystal are substituted by Y and/or Gd. Also disclosed is a method for producing an iodide single crystal, which comprises the steps of: preparing a starting material comprising an RE metal or REI3, I2 and a metal of at least one element selected from the group consisting of Lu, Y and Gd and/or an iodide of the element (provided that when only Lu is selected as the element, only metal Lu is employed); maintaining the starting material under reduced pressure; heating the starting material at a reaction temperature to produce a raw material polycrystal comprising at least XI3:RE [wherein X represents the above-mentioned at least one element]; and converting the raw material polycrystal into a single crystal.
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Inventors:
SHIMAMURA KIYOSHI (JP)
GARCIA VILLORA ENCARNACION ANT (JP)
KITAMURA KENJI (JP)
GARCIA VILLORA ENCARNACION ANT (JP)
KITAMURA KENJI (JP)
Application Number:
PCT/JP2008/052221
Publication Date:
August 14, 2008
Filing Date:
February 05, 2008
Export Citation:
Assignee:
NAT INST FOR MATERIALS SCIENCE (JP)
SHIMAMURA KIYOSHI (JP)
GARCIA VILLORA ENCARNACION ANT (JP)
KITAMURA KENJI (JP)
SHIMAMURA KIYOSHI (JP)
GARCIA VILLORA ENCARNACION ANT (JP)
KITAMURA KENJI (JP)
International Classes:
C30B29/12; C01F17/253; C09K11/00; C09K11/85
Foreign References:
| JP2006526676A | 2006-11-24 | |||
| JP2007016197A | 2007-01-25 | |||
| JP2004532997A | 2004-10-28 | |||
| US20060124854A1 | 2006-06-15 |
Other References:
BIROWOUSUTO M.D. ET AL.: "High-light-output scintillator for photodiode radout: LuI3: Ce3+", J. APPL. PHYS., vol. 99, 28 June 2006 (2006-06-28), pages 123520, XP012083480
M. D. BIROWOSUTO ET AL., J. OF APP. PHYS., vol. 99, 2006, pages 123520
See also references of EP 2133449A4
M. D. BIROWOSUTO ET AL., J. OF APP. PHYS., vol. 99, 2006, pages 123520
See also references of EP 2133449A4
Attorney, Agent or Firm:
MATSUMOTO, Satoru (TaihoBuilding 5th Floor, 17-6,Kyobashi 1-Chome,Chuo-Ku, Tokyo 31, JP)
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