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By G. G. Simons


An introductory treatment of solid state dosimetry theory and the specific application of thermoluminescent dosimeters (TLDs) is presented with regard to gamma-ray heating in zero power reactors (ZPRs). Heating measurements are made in the Argonne National Laboratory ZPRs using encapsulated 7 ~ and i CaF2 ~ TLDs. Absolute gamma-ray heating in the medium surrounding the TLDs is attained from the TLD light output. This requires a prior knowledge of the dosimeter capsule calibration, energy response, and neutron sensitivity. Theoretical predictions of gamma-ray heating are made using 2D transport calculations and, where possible, ENDF/B data. A description of selected procedures is given and example data are compared to theoretical results for a plutonium-fueled assembly. I. DOSIMETER ENERGY RESPONSE For TLD measurements to be useful, one must be able to relate the absorbed dose observed in the dosimeter at a particular location to the expected ab

Year: 2011
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