Jun Z, Yingzeng Z, Youjin G, Fei L, Qingpei X, Yongchun X, Fanhua H. High-precision half-life measurement of
123Xe and
125Xe for fuel areal density diagnosing in inertial confinement fusion.
Appl Radiat Isot 2020;
168:109511. [PMID:
33246790 DOI:
10.1016/j.apradiso.2020.109511]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 08/30/2020] [Accepted: 11/09/2020] [Indexed: 10/23/2022]
Abstract
The half-lives of 123Xe and 125Xe are important to diagnose deuterium-tritium (DT) fuel areal density in inertial confinement fusion (ICF). In this work, those two half-lives have been measured with HPGe γ-ray spectrometers using the reference source method. Data have been recorded over seven half-lives with three independent measurements for 123Xe and two for 125Xe. New values of 123Xe (2.040 ± 0.009) h and 125Xe (17.048 ± 0.032) h have been determined with significant reduction of the uncertainty compared to the currently recommended value of (2.08 ± 0.02) and (16.9 ± 0.2) h, respectively.
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