Beta spectrum measurements for steam generators at the Sequoyah Nuclear Plant
- 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), Journal Name: Radiation Protection Management; (United States) Vol. 2:3; ISSN 0740-0640; ISSN RPMAE
- Country of Publication:
- United States
- Language:
- English
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Applied Studies-- Radiation Effects-- Dosimetry & Monitoring-- (1992-)
61 RADIATION PROTECTION AND DOSIMETRY
BETA DOSIMETRY
BETA SPECTRA
BOILERS
DOSEMETERS
DOSES
DOSIMETRY
ENRICHED URANIUM REACTORS
ENVIRONMENTAL TRANSPORT
LUMINESCENT DOSEMETERS
MASS TRANSFER
MATERIALS
MEASURING INSTRUMENTS
MONITORING
PERFORMANCE
PERSONNEL
PLANNING
POWER REACTORS
PWR TYPE REACTORS
RADIATION DOSES
RADIATION MONITORING
RADIATION PROTECTION
RADIOACTIVE EFFLUENTS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
REACTOR COMPONENTS
REACTORS
SEQUOYAH-1 REACTOR
SEQUOYAH-2 REACTOR
SPECTRA
STEAM GENERATORS
THERMAL REACTORS
THERMOLUMINESCENT DOSEMETERS
THERMOLUMINESCENT DOSIMETRY
VAPOR GENERATORS
WASTES
WATER COOLED REACTORS
WATER MODERATED REACTORS