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. 11, 1990
Filed:
Jul. 25, 1988
Dennis D Huffman, Albuquerque, NM (US);
Robert C Hughes, Albuquerque, NM (US);
Charles A Kelsey, Albuquerque, NM (US);
Richard Lane, Galveston, TX (US);
Antonio J Ricco, Albuquerque, NM (US);
Jay B Snelling, Albuquerque, NM (US);
Thomas E Zipperian, Albuquerque, NM (US);
United States Department of Energy, Washington, DC (US);
Abstract
Methods of and apparatus for in vivo radiation measurements relay on a MOSFET dosimeter of high radiation sensitivity with operates in both the passive mode to provide an integrated dose detector and active mode to provide an irradiation rate detector. A compensating circuit with a matched unirradiated MOSFET is provided to operate at a current designed to eliminate temperature dependence of the device. Preferably, the MOSFET is rigidly mounted in the end of a miniature catheter and the catheter is implanted in the patient proximate the radiation source.