Climax spent fuel dosimetry. Progress report, September 1982-January 1984

This report covers work done during FY83. These tasks included: (1) recovery and readout of the final set of dosimeters from the Climax facility, (2) a calibration exposure at the Sandia Gamma Irradiation Facility (GIF) to verify temperature effects during irradiation, and (3) a recalculation of new and existing calibration data over the range of 2 x 10{sup 3} to 10{sup 8} rads-LiF. This new set of calibration data is slightly different from that previously reported, and incorporates the best temperature corrections determined thus far. Data previously reported have been corrected and tables of a consistent set of these data are provided. The high-range dosimetry required for this project was achieved by exploiting the radiation-induced increases in optical absorption in LiF. This phenomenon is manifested as a series of peaks in the absorption spectrum; two of these peaks have proved useful for the dosimetric purposes at hand. The first, centered at 247 nm, covers the range of 2 x 10{sup 3} to 9 x 10{sup 6} rads-LiF; while the second, at 374 nm, covers the overlapping range of 2 x 10{sup 6} to 10{sup 8} rads-LiF. Optical absorption was measured with a double-beam spectrometer in absorbance units (AU), equivalent to the common log of the reciprocal of the optical transmission