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Laser Raman Spectroscopy for KATRIN

Fischer, S., Sturm, M., Schlösser, M., Lewis, Richard J., Bornschein, B., Drexlin, G. and Telle, H. H. 2012. Laser Raman Spectroscopy for KATRIN. Nuclear Physics B - Proceedings Supplements 229-33 , p. 492. 10.1016/j.nuclphysbps.2012.09.129

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The aim of the Karlsruhe Tritium Neutrino experiment - KATRIN - is the direct (model-independent) measurement of the mass of the electron anti-neutrino [T. Thümmler, Introduction to direct neutrino mass measurements and KATRIN, Neutrino 2010 (Athens, Greece).]. For that purpose a windowless gaseous tritium source WGTS is used, with a tritium throughput of 40 g/day. In order to reach the design sensitivity of 0.2 eV/c2 (90% C.L.) the key parameters of the tritium source, i.e. the gas inlet rate and the gas composition, have to be stabilized and monitored at the 0.1 % level (1σ). Any small change of the tritium gas composition will manifest itself in non-negligible effects on the KATRIN measurements; therefore, precise methods to specifically monitor the gas composition have to be implemented. Laser Raman Spectroscopy is the method of choice for the monitoring of the gas composition because it is a non-invasive and fast in-line measurement technique. An overview of the current Raman activities at Tritium Laboratory Karlsruhe (TLK) is given.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Subjects: Q Science > QC Physics
Uncontrolled Keywords: Neutrino; Mass; KATRIN; Tritium; Raman; Spectroscopy
Additional Information: Neutrino 2010
Publisher: Elsevier
ISSN: 0920-5632
Last Modified: 04 Jun 2017 06:21

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