High-resolution spectroscopy of gaseous 83m Kr conversion electrons with the KATRIN experiment

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High-resolution spectroscopy of gaseous 83m Kr conversion electrons with the KATRIN experiment

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Altenmüller_2020_J._Phys._G _Nucl._Part._Phys._47_065002.pdf

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sword-2020-10-21T18:10:01.original.xml (130 B)

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Journal

Journal of Physics G: Nuclear and Particle Physics

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IOP Publishing

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Final published version

Abstract

© 2020 The Author(s). Published by IOP Publishing Ltd. In this work, we present the first spectroscopic measurements of conversion electrons originating from the decay of metastable gaseous 83mKr with the Karlsruhe Tritium Neutrino (KATRIN) experiment. The obtained results represent one of the major commissioning milestones for the subsequent direct neutrino mass measurement with KATRIN. The successful campaign demonstrates the functionalities of the KATRIN beamline. Precise measurement of the narrow K-32, L3-32, and N2,3-32 conversion electron lines allowed to verify the eV-scale energy resolution of the KATRIN main spectrometer necessary for competitive measurement of the absolute neutrino mass scale.

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Creative Commons Attribution 4.0 International license

https://creativecommons.org/licenses/by/4.0/

Persistent DSpace Link

https://hdl.handle.net/1721.1/132430

DOI of Published Version

10.1088/1361-6471/AB8480