Accession Number : AD0743172

Title :   Ceric/Cupric Dosimetry: 5 Kilorads to 50 Megarads.

Descriptive Note : Technical rept. Sep 67-Dec 70,

Corporate Author : EDGEWOOD ARSENAL MD

Personal Author(s) : Bowie,Donald R.

Report Date : MAY 1972

Pagination or Media Count : 23

Abstract : The ceric/cupric chemical dosimeter was investigated using cobalt-60 radiation at five concentrations over a dose range of 5 kilorads to 50 megarads. A G-value of 2.17 plus or minus 0.01 was determined for ceric concentrations from 1 to 400 millimolar, with a slightly higher value for 0.20 mM. The yield of 100 and 400 mM solutions is affected by competing reactions, and correction factors must be applied. Spectrophotometric analysis combined with automatic dilution techniques was found to be a convenient and reliable method of analysis. Even under adverse conditions the precision obtained with the system approached that of the Fricke dosimeter. (Author)

Descriptors :   (*DOSIMETERS, CHEMICAL REACTIONS), (*CERIUM COMPOUNDS, DOSIMETERS), (*RADIATION CHEMISTRY, CERIUM COMPOUNDS), COPPER COMPOUNDS, GAMMA RAYS, IMPURITIES

Subject Categories : Radiobiology
      Radiation and Nuclear Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE