文章基本信息

标题：Status of the KATRIN experiment
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作者：S. FISCHER
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2011
卷号：2011
期号：EPS-HEP2011
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The aim of the Karlsruhe Tritium Neutrino experiment - KATRIN - is the direct measurement of the anti-neutrino mass with a sensitivity of 200 meV/c2 (90% C.L.). It is based on the study of the endpoint region of tritium b decay where a non-vanishing anti-neutrino mass causes a distortion of the b spectrum. KATRIN will allow to probe a part of the cosmology-relevant neutrino mass parameter space and hence further constrain cosmological models and help to clarify the role of neutrinos as dark matter. KATRIN uses a windowless gaseous tritium source for production of b electrons in combination with an electrostatic filter for energy analysis. An overview of the status of the KATRIN experiment will be given.