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Measurement of the gamma-ray emission probability of 131mXe
Qi Li1, Shilian Wang1, Yuanqing Fan1
1CTBT Beijing National Data Centre and Radionuclide Laboratory, Beijing, 100085, China.
Abstract:
131mXe has been standardized by means of an internal gas proportional counting system, employing a length-compensated method. The activity concentration of 131mXe was measured with a relative standard uncertainty of 0.6%. The gamma-ray emission probability of 131mXe was then determined as 0.0196(4) by measuring a standard sample of 131mXe using a high-purity germanium (HPGe) spectrometer.
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