RESULTS OF AN EXPERIMENT ON SEARCH FOR 2-BETA-DECAY OF XE-136 IN PROPORTIONAL DRIFT DETECTOR

被引：0

作者：

ARTEMEV, VA

BRAKHMAN, EV

ZELDOVICH, OY

IVANOVSKII, MA

KARELIN, AK

KIRICHENKO, VV

KNYAZEV, VM

KOZODAEVA, OM

LYUBIMOV, VA

MITIN, AI

NIKOLAEV, VP

TSVETKOVA, TN

机构：

来源：

INSTRUMENTS AND EXPERIMENTAL TECHNIQUES | 1992年 / 35卷 / 02期

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中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Background processes were studied in a proportional drift detector with a volume of 300 liters intended for the search for 2beta-decay of Xe-136. A technique is developed for the selection of background events associated with U-238-series isotopes entering the detector from the gas purification system because of diffusion of Rn-222. The technique allows the registration of Rn-222 impurities with a relative concentration of 10(-20)-10(-21) in working gas. For an exposure of 418 h, the lower limit of the half-life time is found (T1/2(2beta2nu) > 9.3 . 10(19) yr) with a confidence level of 90%.

引用

页码：226 / 230

页数：5

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