Half-life determination of 88Kr and 138Xe

The half-lives of 88Kr and 138Xe have been determined with two high purity germanium (HPGe) detectors by the position relay method. Data have been recorded at regular time intervals during measurements covering more than nine times the respective half-lives. This article describes in detail the principle and process of the position relay method with two HPGe detectors. The determined half-lives of 88Kr and 138Xe are 2.804±0.015 h and 14.18±0.10 min, respectively.

► The position delay method was used to determine the half-life of radionuclide. ► The half-lives of 88Kr and 138Xe were determined by experiment. ► The determined half-lives of 88Kr and 138Xe were compared with the literature values.