Record Display for the EPA National Library Catalog


Main Title A comparison of film badges and thermoluminescent dosimeters used for environmental monitoring /
Author Fitzsimmons, Charles K. ; Horn, William ; Klein, William L.
Other Authors
Author Title of a Work
Horn, William H.
Klein, William L.
CORP Author Western Environmental Research Lab., Las Vegas, Nev.
Publisher U.S. Environmental Protection Agency, Western Environmental Research Laboratory ; Available from the National Technical Information Service,
Year Published 1972
Report Number SWRHL-93r; SF 54 373
Stock Number SWRHL-93-R
OCLC Number 36939015
Subjects Dosimeters ; Thermoluminescence dosimetry ; Photographic dosimetry
Additional Subjects Radiation dosimeters/ photographic film ; Radiation dosimeters/ thermoluminescent
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA SWRHL-93r Headquarters Library/Washington,DC 06/01/2018
ELBD ARCHIVE EPA SWRHL-93r Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
NTIS  SWRHL-93-R Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation iv, 30 pages : illustrations ; 28 cm
For abstract, see NSA 26 16, number 38490.
"Published May 1972." "SWRHL-93r." Cover title. "This study performed under a memorandum of understanding (no. SF 54 373) for the Nevada Operations Office, U.S. Atomic Energy Commission." Includes bibliographical references.
Contents Notes
Data obtained from two concurrent dosimetry networks operated by the Western Environmental Research Laboratory in Nevada, one utilizing film badges and the other thermoluminescent dosimeters (TLD's) are compared. Gamma exposures from a few mR to approximately 1R due to both natural background and fission products in the environment are more easily and accurately measured by the TLD system. Where the minimum detectable exposure for film is about 45 mR, the TLD sensitivity is on the order of 1 mR (which allows measurement of monthly background exposures). The insensitivity of TLD's to environmental heating, humidity, light damage, and pressure makes them ideal for use in the extreme conditions encountered in the desert. Heat damage to the film was seasonal with the greatest losses occurring in the summer. During July, 1967, 71% of the film badges issued were heat or light damaged, while no loss of TLD data occured. No background information was obtained from film data during 1967, but the geographical variations in the background exposure rates were clearly disclosed by the TLD's.