Beta spectrum measurements for steam generators at the Sequoyah Nuclear Plant

Journal Article · Mon Apr 01 00:00:00 EST 1985 · Radiation Protection Management; (United States)

OSTI ID:5348682

Farrell, W E; Hudson, C G ^[1]

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1. Tennessee Valley Authority, Office of Nuclear Power, Chattanooga, TN (US)

This paper reports on a study performed during two consecutive outages at the Sequoyah Nuclear Plant to determine the relative responses of instruments and dosimeters to the beta-gamma radiation fields in the steam generators. Eberline RO-7-BM and Ro-2A ion chamber survey instruments were used in the study along with standard and modified Panasonic UD-802 thermoluminescent dosimeters (TLDs) and three types of extremity TLDs. The average and maximum beta energies present in the steam generators were estimated by three separate methods. TLD responses to irradiations with steam generator diaphragms were compared to survey instrument responses, and the use of instrument beta correction factors was evaluated. Extremity TLDs were also exposed to a steam generator diaphragm, and apparent beta correction factors were determined. The overall conclusion of the study was that the average beta energy in the steam generators was bout 100 keV and, as a result, normal protective clothing was adequate to protect workers.

• OSTI ID: 5348682
• Journal Information: Radiation Protection Management; (United States), Vol. 2:3; ISSN 0740-0640
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
61 RADIATION PROTECTION AND DOSIMETRY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
PERSONNEL
RADIATION DOSES
STEAM GENERATORS
BETA SPECTRA
THERMOLUMINESCENT DOSEMETERS
PERFORMANCE
BETA DOSIMETRY
ENVIRONMENTAL TRANSPORT
PLANNING
RADIATION MONITORING
RADIATION PROTECTION
RADIOACTIVE EFFLUENTS
REACTOR COMPONENTS
SEQUOYAH-1 REACTOR
SEQUOYAH-2 REACTOR
THERMOLUMINESCENT DOSIMETRY
BOILERS
DOSEMETERS
DOSES
DOSIMETRY
ENRICHED URANIUM REACTORS
LUMINESCENT DOSEMETERS
MASS TRANSFER
MATERIALS
MEASURING INSTRUMENTS
MONITORING
POWER REACTORS
PWR TYPE REACTORS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
REACTORS
SPECTRA
THERMAL REACTORS
VAPOR GENERATORS
WASTES
WATER COOLED REACTORS
WATER MODERATED REACTORS
220900* - Nuclear Reactor Technology- Reactor Safety
560101 - Biomedical Sciences
Applied Studies- Radiation Effects- Dosimetry & Monitoring- (1992-)
440102 - Radiation Instrumentation- Radiation Dosemeters
220502 - Nuclear Reactor Technology- Environmental Aspects- Radioactive Effluents