Nationwide evaluation of /sup 60/Co teletherapy calibrations

Journal Article · Fri Sep 01 04:00:00 EDT 1978 · Med. Phys.; (United States)

OSTI ID:6667978

Dicey, B B; Moe, H J; Tongue, T M

As a result of a reported incident which resulted in the unintended overexposure of several hundred patients, teletherapy installations throughout the United States were evaluated to verify the accuracy of teletherapy equipment calibrations. Selected licensees received TLDs for exposure under specified conditions. Site visits were made to each licensee showing an apparent discrepancy greater than +- 5% and intercomparison measurements made. This paper describes results of a sampling of 373 teletherapy licensees and the success of site visits in reducing final discrepancies to less than +- 5%. TLD and site visit measurement techniques, results, comparison with data from other studies, and possible sources of uncertainty in the management of a large-scale screening program are discussed.

• Research Organization: United States Nuclear Regulatory Commission, 799 Roosevelt Road, Glen Ellyn, Illinois 60137.
• OSTI ID: 6667978
• Journal Information: Med. Phys.; (United States), Journal Name: Med. Phys.; (United States) Vol. 5:5; ISSN MPHYA
• Country of Publication: United States
• Language: English

Related Subjects

61 RADIATION PROTECTION AND DOSIMETRY
655003* -- Medical Physics-- Dosimetry
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALIBRATION
COBALT 60
COBALT ISOTOPES
DOSES
DOSIMETRY
EXPOSURE RATEMETERS
HAZARDS
HEALTH HAZARDS
INSPECTION
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MEASURING INSTRUMENTS
MEDICINE
MINUTES LIVING RADIOISOTOPES
MONITORING
NUCLEAR MEDICINE
NUCLEI
ODD-ODD NUCLEI
RADIATION DOSES
RADIATION HAZARDS
RADIATION MONITORING
RADIATION MONITORS
RADIOISOTOPES
RADIOLOGY
RADIOTHERAPY
THERAPY
YEARS LIVING RADIOISOTOPES