WANG Xianggao1 HE Ming1 LI Shizhuo1, 2 DONG Kejun1 XIAO Caijin1 JIANG Shan1 1. Accurate determination for emission rate of 208 keV γ rays of 237U in U-containing samples[J]. Nuclear techniques, 2010, 33(5): 338-341.
WANG Xianggao1 HE Ming1 LI Shizhuo1, 2 DONG Kejun1 XIAO Caijin1 JIANG Shan1 1. Accurate determination for emission rate of 208 keV γ rays of 237U in U-containing samples[J]. Nuclear techniques, 2010, 33(5): 338-341.DOI:
With the availability of 177Lu with highly specific activities and its major γ-ray of 208.3 keV
which is very close to that from 237U(208.000 keV)
we developed a simple method to make an accurate correction for severe self-absorption of the 237U γ-ray.Summing effects from cascade γ rays were avoided by careful arrangement of counting geometry that made the effects negligible.This method is feasible for the determinations of emission rates of low energy γ-rays in high Z matrix samples.