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.

Date of Patent:
Apr. 07, 1987

Filed:

Dec. 30, 1983
Applicant:
Inventor:

Lesley Greenberg, Monroeville, PA (US);

Assignee:

Westinghouse Electric Corp., Pittsburgh, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G21C / ;
U.S. Cl.
CPC ...
376254 ; 376255 ; 376259 ;
Abstract

A method of determining the operability of a source range detector located adjacent a nuclear reactor in which the source range detector generates a count corresponding to the neutrons emitted by the reactor when the reactor is operating within the source range and a predetermined voltage is applied across the electrodes of the detector, the detector being subject to destruction when the reactor power level is above the source range and the predetermined voltage is applied across its electrodes. The method includes the steps of: (a) operating the reactor at a power level above the source range; (b) applying a voltage across the electrodes of the detector, the voltage having a magnitude below that necessary to generate a neutron count from the detector; (c) gradually increasing the magnitude of the voltage across the electrodes of the detector until the detector just begins to generate a neutron count; (d) reducing the voltage across the electrodes of the detector; and (e) replacing the detector if a neutron count is not generated in step (c) at a voltage having a magnitude less than the predetermined voltage.


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