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19 April 2024

» arxiv » 1703.5272

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A pulsed, mono-energetic and angular-selective UV photo-electron source for the commissioning of the KATRIN experiment
J. Behrens ; P. C.-O. Ranitzsch ; M. Beck ; A. Beglarian ; M. Erhard ; S. Groh ; V. Hannen ; M. Kraus ; H.-W. Ortjohann ; O. Rest ; K. Schlösser ; T. Thümmler ; K. Valerius ; K. Wierman ; J. F. Wilkerson ; D. Winzen ; M. Zacher ; C. Weinheimer ;
Date:	15 Mar 2017
Abstract:	The KATRIN experiment aims to determine the neutrino mass scale with a sensitivity of 200 meV/c^2 (90% C.L.) by a precision measurement of the shape of the tritium $eta$-spectrum in the endpoint region. The energy analysis of the decay electrons is achieved by a MAC-E filter spectrometer. To determine the transmission properties of the KATRIN main spectrometer, a mono-energetic and angular-selective electron source has been developed. In preparation for the second commissioning phase of the main spectrometer, a measurement phase was carried out at the KATRIN monitor spectrometer where the device was operated in a MAC-E filter setup for testing. The results of these measurements are compared with simulations using the particle-tracking software "Kassiopeia", which was developed in the KATRIN collaboration over recent years.
Source:	arXiv, 1703.5272
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