ANALYSIS OF THE DEVIATION OF ~(210)Po CALORIMETRY MEASUREMINTS

In the research of neutron yield of Starter Neutron Source for Qinshan Nuclear Power Station. it was found that the ~(210)Po activity calorimetry data in the neutron source was over 16 percent larger than the data measured by the same calorimeter for ~(210)po which had been used to make the neutron source. The deviation was analysed to be due to different temperature distributions.