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, 1989
Filed:
Oct. 05, 1987
Applicant:
Inventors:
George W Parsons, North Reading, MA (US);
Robert L Kelly, Hudson, NH (US);
Joseph M Zlotnicki, Methuen, MA (US);
Assignee:
Amersham Corporation, Burlington, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G21G / ;
U.S. Cl.
CPC ...
378119 ; 378 65 ; 2504931 ; 252644 ; 252645 ;
Abstract
A radiography source, preferably a cobalt-60 source constructed of a plurality of radioactive cobalt-60 pellets contained in an open capsule preferably constructed of titanium. The pellets are disposed in the capsule and compacted therein to reduce the source focal size. A plug is disposed in the open capsule and welded therewith. The cobalt and titanium materials are sufficiently different in atomic number to permit good X-ray analysis resolution.