Title:
CRYSTALLINE MATERIAL, RADIATION DETECTOR, IMAGE PICK-UP DEVICE, NON-DESTRUCTIVE INSPECTION DEVICE, AND LIGHTING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2014/104238
Kind Code:
A1
Abstract:
Provided is a crystalline material characterized in being represented by general formula (1): (Gd1-x-y-zLaxMEyREz)2(Si1-vMMv)2O7 (1).
In formula (1), ME is at least one element selected from among Y, Yb, Sc and Lu, RE is a transition metal or rare earth element, MM is at least one element selected from among Ge, Sn, Hf and Zr, and the ranges for x, y, z and v are defined by (i) or (ii). (i) 0.05 ≤ x+z ≤ 1.0, 0.0 ≤ y ≤ 1.0, 0.0001 ≤ z < 0.05, and v = 0.0 (however, y cannot be 0 when RE is Ce), (ii) 0.0 ≤ x+y+z ≤ 1.0, 0.0001 ≤ z ≤ 0.05, and 0.0 < v. Due to the foregoing, a crystalline material which has high luminescence and a short fluorescence life, and a radiation detector, image pick-up device, non-destructive inspection device and lighting apparatus that use this crystalline material are provided.
Inventors:
YOSHIKAWA AKIRA (JP)
KUROSAWA SHUNSUKE (JP)
YOKOTA YUUI (JP)
SHOJI YASUHIRO (JP)
SUZUKI AKIRA (JP)
SHISHIDO TOETSU (JP)
KUROSAWA SHUNSUKE (JP)
YOKOTA YUUI (JP)
SHOJI YASUHIRO (JP)
SUZUKI AKIRA (JP)
SHISHIDO TOETSU (JP)
Application Number:
PCT/JP2013/084980
Publication Date:
July 03, 2014
Filing Date:
December 26, 2013
Export Citation:
Assignee:
UNIV TOHOKU (JP)
International Classes:
C30B29/34; C01B33/20; C09K11/00; C09K11/79; C30B29/32; G01T1/20; G01T1/202; G21K4/00
Domestic Patent References:
| WO2003083010A1 | 2003-10-09 |
Foreign References:
| JP2010235433A | 2010-10-21 | |||
| JP2009074039A | 2009-04-09 | |||
| JP2009074039A | 2009-04-09 |
Other References:
S. KAWAMURA; J. H. KANEKO; M. HIGUCHI; T. YAMAGUCHI; J. HARUNA; Y. YAGI; K. SUSA; F. FUJITA; A. HOMMA; S. NISHIYAMA, IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, 29 October 2006 (2006-10-29), pages 1160 - 1163
S. KAWAMURA; M. HIGUCHI; J. H. KANEKO; S. NISHIYAMA; J. HARUNA; S. SAEKI; S. UEDA; K. KURASHIGE; H. ISHIBASHI; M. FURUSAKA, CRYSTAL GROWTH & DESIGN, vol. 9, no. 3, 2009, pages 1470 - 1473
S. KUROSAWA; M. SUGIYAMA; T. YANAGIDA; Y. YOKOTA; A. YOSHIKAWA, NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH SECTION A, vol. 690, 2012, pages 53 - 57
See also references of EP 2940195A4
S. KAWAMURA; M. HIGUCHI; J. H. KANEKO; S. NISHIYAMA; J. HARUNA; S. SAEKI; S. UEDA; K. KURASHIGE; H. ISHIBASHI; M. FURUSAKA, CRYSTAL GROWTH & DESIGN, vol. 9, no. 3, 2009, pages 1470 - 1473
S. KUROSAWA; M. SUGIYAMA; T. YANAGIDA; Y. YOKOTA; A. YOSHIKAWA, NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH SECTION A, vol. 690, 2012, pages 53 - 57
See also references of EP 2940195A4
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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