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:
May. 02, 2006
Filed:
Aug. 29, 2001
Eiichi Tanaka, Hamamatsu, JP;
Takaji Yamashita, Hamamatsu, JP;
Hiroyuki Okada, Hamamatsu, JP;
Hamamatsu Photonics K.K., Shizuoka, JP;
Abstract
A rotating ceptorprovided inside a detector portionincludes nine shield plates Sto Sdisposed in parallel to each other in between adjacent detector rings R, acts as a collimator, and allows only those photon pairs that have traveled approximately parallel to a slice plane to be made incident upon photon detectors D located behind the rotating ceptor. Each of the shield plates S is not formed annularly, and provided near the measurement field of viewof part of N photon detectors D that constitute each of the detector rings R. The rotating ceptoris rotatable about its center axis. Each of the shield plates S is provided with bar-shaped radiation source insertion holesandfor allowing a bar-shaped positron emission radiation sourceto be inserted therein and supported thereby.