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. 14, 1989
Filed:
Mar. 11, 1988
Joseph G Johnston, Newbury, OH (US);
Bicron Corporation, Newbury, OH (US);
Abstract
A plastic scintillator element that is tissue equivalent is optically coupled to a photomultiplier tube that provides a pulse signal which contains information relating to radiation energy fluence, and having an undesirable 'dark current' component. A direct current blocking element in the form of a capacitor isolates the input of an operational amplifier from the 'dark current' component so that the output signal of the amplifier indicates the average current of the photomultiplier signal attributed only to detected, low level, environmental radiation in the range of 0-200 .mu.rem/h.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile