Home / Store / Journals / Electronic Articles / Nuclear Science and Engineering / Volume 141 / Number 2
P. Jansson, A. Håkansson, A. Bäcklin, S. Jacobsson
Nuclear Science and Engineering
Volume 141 / Number 2 / June 2002 / Pages 129-139
Format:electronic copy (download)
A method for determining the residual thermal power in spent nuclear fuel using gamma-ray spectroscopy is suggested. It is based on the correlation between the residual power and the 137Cs activity, which is nearly linear for fuel with cooling times between 10 and 50 yr. Using available data of calorimetrically measured values of the decay heat in 69 boiling water reactor and pressurized water reactor spent-fuel assemblies resulted in agreement with a standard deviation of 3%.
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