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Title: Optical gamma thermometer

Abstract

An optical gamma thermometer includes a metal mass having a temperature proportional to a gamma flux within a core of a nuclear reactor, and an optical fiber cable for measuring the temperature of the heated metal mass. The temperature of the heated mass may be measured by using one or more fiber grating structures and/or by using scattering techniques, such as Raman, Brillouin, and the like. The optical gamma thermometer may be used in conjunction with a conventional reactor heat balance to calibrate the local power range monitors over their useful in-service life. The optical gamma thermometer occupies much less space within the in-core instrument tube and costs much less than the conventional gamma thermometer.

Inventors:
; ;
Issue Date:
Research Org.:
General Electric Company (Niskayuna, NY)
Sponsoring Org.:
USDOE
OSTI Identifier:
1089396
Patent Number(s):
8,503,599
Application Number:
12/259,931
Assignee:
General Electric Company (Niskayuna, NY)
DOE Contract Number:  
FC07-07ID14778
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Koster, Glen Peter, Xia, Hua, and Lee, Boon Kwee. Optical gamma thermometer. United States: N. p., 2013. Web.
Koster, Glen Peter, Xia, Hua, & Lee, Boon Kwee. Optical gamma thermometer. United States.
Koster, Glen Peter, Xia, Hua, and Lee, Boon Kwee. Tue . "Optical gamma thermometer". United States. https://www.osti.gov/servlets/purl/1089396.
@article{osti_1089396,
title = {Optical gamma thermometer},
author = {Koster, Glen Peter and Xia, Hua and Lee, Boon Kwee},
abstractNote = {An optical gamma thermometer includes a metal mass having a temperature proportional to a gamma flux within a core of a nuclear reactor, and an optical fiber cable for measuring the temperature of the heated metal mass. The temperature of the heated mass may be measured by using one or more fiber grating structures and/or by using scattering techniques, such as Raman, Brillouin, and the like. The optical gamma thermometer may be used in conjunction with a conventional reactor heat balance to calibrate the local power range monitors over their useful in-service life. The optical gamma thermometer occupies much less space within the in-core instrument tube and costs much less than the conventional gamma thermometer.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {8}
}

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