Title:
METHOD FOR IMPROVING SURFACE PURITY OF LUTETIUM SILICATE CRYSTAL
Document Type and Number:
Japanese Patent JP2007145676
Kind Code:
A
Abstract:
To provide a method for simply purifying the surface and surface layer thereof almost without substantially dissolving the surface of a lutetium silicate crystal (Lu2SiO5), whose use as a scintillator of a positron emission tomography device (PET device) has been considered.
The surface purity of the silicic acid lutetium crystal is improved by washing the surface of the silicic acid lutetium crystal with a mixed solution of a solution whose hydrofluoric acid concentration is 0.01-50% and a solution whose nitric acid concentration is 0.01-70%.
Inventors:
TAKAHASHI MASATO
SHIDARA HIROAKI
SHIDARA HIROAKI
Application Number:
JP2005345549A
Publication Date:
June 14, 2007
Filing Date:
November 30, 2005
Export Citation:
Assignee:
TOSHIBA CERAMICS CO
OXIDE CORP
OXIDE CORP
International Classes:
C30B29/34; C30B33/10
Domestic Patent References:
| JP2005532571A | 2005-10-27 | |||
| JPH054811A | 1993-01-14 | |||
| JPH06140376A | 1994-05-20 |
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
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