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Title: Gross gamma-ray measurements of light water reactor spent-fuel assemblies in underwater storage arrays

Technical Report ·
DOI:https://doi.org/10.2172/6690751· OSTI ID:6690751

Two gross gamma-ray detection systems have been developed for rapid measurement of spent-fuel assemblies in underwater storage racks. One system uses a scintillator as the detector and has a 2% crosstalk between a fuel assembly and an adjacent void. The other system uses an ion chamber as the detector. The measurements with both detectors correlate well with operator-declared burnup and cooling-time values.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
6690751
Report Number(s):
LA-8447; TRN: 81-002921
Country of Publication:
United States
Language:
English