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Standard method of test for absorbed gamma radiation dose in the Fricke dosimeter

Journal Article · · Annu. Book ASTM Stand.; (United States)
OSTI ID:7330404
The preparation and procedure for the use of a Fricke dosimeter are described. The dosimeter is based on the process of oxidation of Fe/sup 2 +/ to Fe/sup 3 +/ by x or ..gamma.. rays or high-energy electrons. The method can be accurately used for absorbed dose determination in the range from 0.2 x 10/sup 4/ to 4 x 10/sup 4/ rd, using a spectrophotometric determination of the Fe/sup 3 +/ concentration. The system is extremely sensitive to organic inpurities even in trace amounts. The precision of the method is +-1.0 percent and the accuracy is +-2.0 percent. (BLM)
OSTI ID:
7330404
Journal Information:
Annu. Book ASTM Stand.; (United States), Journal Name: Annu. Book ASTM Stand.; (United States) Vol. 45; ISSN ASTSA
Country of Publication:
United States
Language:
English