The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 25, 2001
Filed:
Jun. 02, 1999
Akio Sumita, Yokohama, JP;
Tatsuyuki Maekawa, Shinagawa-ku, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A radiation detector D comprises: a scintillator,, a main light guide,, a wavelength shift fiber,passing through the main light guide,, and an auxiliary light guide,provided between the scintillator,and the main light guide,. The scintillator,is designed to emit scintillation light in response to incoming radiation. The main light guide,is surrounded by a plane,of incidence, for allowing the scintillation light to be incident thereon, and a reflecting surface for inwardly reflecting the scintillation light entering the plane,of incidence. The wavelength shift fiber,is designed to absorb the scintillation light entering the main light guide,to re-emit the scintillation light as fluorescent pulses of a longer wavelength to allow the re-emitted fluorescent pulses to simultaneously leave both ends,. In this radiation detector D, the scintillator,and the auxiliary light guide,are made of a material having a higher heat resisting temperature than that of the wavelength shift fiber