The origin of the background radioactive isotope 127Xe in the sample of Xe enriched in 124Xe
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- 作者：Yu. M. Gavrilyuk ; A. M. Gangapshev ; V. V. Kazalov…
- 刊名：Physics of Particles and Nuclei
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：48
- 期：1
- 页码：42-46
- 全文大小：
- 刊物类别：Physics and Astronomy
- 刊物主题：Particle and Nuclear Physics;
- 出版者：Pleiades Publishing
- ISSN：1531-8559
- 卷排序：48
文摘
The results of investigation of 127Xe radioactive isotope production in the xenon sample enriched in 124Xe, 126Xe, 128Xe are presented. The isotope is supposed to be the source of the background events in the low-background experiment on search for 2K-capture of 124Xe. In this work we consider two channels of 127Xe production: the neutron knock-out from 128Xe nucleus by cosmogenic muons and the neutron capture by 126Xe nucleus. For the first channel the upper limit of the cross section of 127Xe production was found to be σ ≤ 0.007 × 10−24 cm2 at 95% C.L. For the second channel the value obtained for the cross section was found to be equal to σ = (2.74 ± 0.4) × 10−24 cm2, which coincides well, within the statistical error, with reference value.