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arXiv · 1507.04181

The origin of the background radioactive isotope Xe-127 in the sample of Xe enriched in Xe-124

Yu. M. Gavrilyuk·A. M. Gangapshev·V. V. Kazalov·V. V. Kuzminov·S. I. Panasenko·S. S. Ratkevich·D. A. Tekueva·S. P. Yakimenko
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Abstract

The results of investigation of Xe-127 radioactive isotope production in the xenon sample enriched in Xe-124, Xe-126, Xe-128 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 Xe-124. In this work we consider two channels of Xe-127 production: the neutron knock-out from Xe-128 nucleus by cosmogenic muons and the neutron capture by Xe-126 nucleus. For the first channel the upper limit of the cross section of Xe-127 production was found to be sigma >= 0.007 barn at 95\% C.L. For the second channel the value obtained for the cross section was found to be equal to sigma =(2.74+-0.4) barn, which coincides well, within the statistical error, with reference value.

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Yu. M. Gavrilyuk, A. M. Gangapshev, V. V. Kazalov, V. V. Kuzminov, S. I. Panasenko, S. S. Ratkevich, D. A. Tekueva, S. P. Yakimenko. 2015-07-15. The origin of the background radioactive isotope Xe-127 in the sample of Xe enriched in Xe-124. https://arxiv.org/abs/1507.04181

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