Title:
SOLID-STATE SCINTILLATOR, RADIATION DETECTOR, AND X-RAY TOMOGRAPHIC IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2010/095737
Kind Code:
A1
Abstract:
Disclosed are a high-output solid-state scintillator with short afterglow, and a radiation detector and X-ray tomographic imaging device that use the solid-state scintillator. The solid-state scintillator contains silicon and fluorine in a polycrystalline material made from a Gd-garnet type oxide crystal of the compositional ratio represented by formula (1): (M1-x-yGdxQy)3J5O12 (In the formula, M is at least one of the elements La and Tb, Q is at least one of the elements Ce and Pr, J is at least one element selected from Al, Ga, and In, 0.5 ≦ x ≦ 1, and 0.000001 ≦ y ≦ 0.2.). The solid-state scintillator contains 1-1000 ppm by mass of silicon relative to the Gd-garnet type oxide, and 1-100 ppm by mass of fluorine relative to the Gd-garnet type oxide.
Inventors:
FUKUTA YUKIHIRO
OOTA HIROYASU
ISHII TSUTOMU
FUNAYAMA YOSHITAKA
OOTA HIROYASU
ISHII TSUTOMU
FUNAYAMA YOSHITAKA
Application Number:
PCT/JP2010/052625
Publication Date:
August 26, 2010
Filing Date:
February 22, 2010
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA MATERIALS CO LTD (JP)
FUKUTA YUKIHIRO
OOTA HIROYASU
ISHII TSUTOMU
FUNAYAMA YOSHITAKA
TOSHIBA MATERIALS CO LTD (JP)
FUKUTA YUKIHIRO
OOTA HIROYASU
ISHII TSUTOMU
FUNAYAMA YOSHITAKA
International Classes:
C09K11/80; A61B6/00; C04B35/50; C09K11/00; G01T1/20; G01T1/202
Foreign References:
| JP2002189080A | 2002-07-05 | |||
| JP2001348273A | 2001-12-18 | |||
| JP2001294853A | 2001-10-23 | |||
| JP2001181043A | 2001-07-03 | |||
| JP2001183463A | 2001-07-06 | |||
| JP2001004753A | 2001-01-12 | |||
| JP2001320094A | 2001-11-16 | |||
| JP2009227794A | 2009-10-08 |
Attorney, Agent or Firm:
HATANO, Hisashi et al. (JP)
Hisashi Hatano (JP)
Hisashi Hatano (JP)
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