Summary

The half-life of ¹³²I was determined using a HPGe detector by place-relay method; calibrating efficiency was avoided by counting alternately at different places. In order to simplify the treatment of data, the realtime of every counting interval was set the same. Two ways, iteration and translation, were adopted to deal with the data. The obtained half-life value of ¹³²I was (2.283 ± 0.002) h which has been checked and proven to be credible.