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Personal monitoring at a four MeV Van de Graaff accelerator with tissue- equivalent pocket dosimeters

Conference ·
OSTI ID:4326502
The operators and users of a 4-MeV de Graaff accelerator historically had been assigned film badges using Kodak NTA film as personal monitors for neutron radiation. When a review of their cumulative neutron exposures as reported by film badges was not supported by radiation survey records of the work areas, a study was made to determine the reason. The study found that the neutron average energy was less than 200 keV in areas occupied by the accelerator personnel. Neutrons of this energy are below the region of effective interpretation for the Argonne National Laboratory film badge. A search was initiated for a supplement to the film badge resulting in the adoption of a tissue-equivalent ionizaticn chamber pocket dosimeter. Tests made to determine its energy dependence are described. (auth)
Research Organization:
Argonne National Lab., IL
NSA Number:
NSA-29-029516
OSTI ID:
4326502
Country of Publication:
Country unknown/Code not available
Language:
English