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:
Aug. 26, 2014
Filed:
Oct. 25, 2011
Ryouhei Nakamura, Mishima-gun, JP;
Kenya Tanaka, Mishima-gun, JP;
Shunsuke Ueda, Mishima-gun, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
A polycrystalline scintillator for detecting soft X-rays, which comprises Ce as a light-emitting element and at least Y, Gd, Al, Ga and O, and has a garnet crystal structure, and a composition represented by the general formula of (YGdCe)(AlGa)O, wherein 0≦a≦0.1, 0.15≦x≦0.3, 0.002≦z≦0.015, and 0.35≦u≦0.55, with 0.05-1 ppm by mass of Fe and 0.5-10 ppm by mass of Si by outer percentage, a ratio μ/μof 3 or more, wherein μis an absorption coefficient of X-rays at 50 keV, and μis an absorption coefficient of X-rays at 100 keV, and afterglow of 800 ppm or less after 3 ms from the termination of X-ray irradiation.