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:
Nov. 19, 2002
Filed:
Jul. 19, 2001
Ichiro Fujiwara, Osaka, JP;
Yoshiko Ito, Saitama, JP;
Ren Iwata, Miyagi, JP;
Toshio Hyodo, Tokyo, JP;
Yasushige Yano, Saitama, JP;
Akira Goto, Saitama, JP;
Yuji Ikegami, Saitama, JP;
Yoshio Nomiya, Saitama, JP;
Riken, Saitama, JP;
Abstract
The present invention provides a positron source essentially consisting of a carbon member having F bound onto the surface thereof, a method of a preparing the same, and an automated system for supplying the same. In the present invention, the positron source is prepared by irradiating a solution containing both H O and a small amount of natural fluorine ions with a beam of charged particles to generate F, and then passing an electric current through the solution using a carbon member as an anode to cause to bind the generated F onto the surface of the carbon member