Würzburg 2018 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 72: Eingeladene Vorträge IV
T 72.5: Eingeladener Vortrag
Donnerstag, 22. März 2018, 15:36–16:00, Z6 - HS 0.002
Status and final steps towards neutrino mass measurements with the KATRIN experiment — •Philipp Ranitzsch for the KATRIN collaboration — Institut für Kernphysik, WWU Münster
The KArlsruhe TRItium Neutrino experiment (KATRIN) aims to determine the neutrino mass with a sensitivity of 0.2 eV/c2 by measuring the end-point region of the 3H β-spectrum. The required high statistics and high resolution are achieved with a ∼ 100 GBq windowless gaseous tritium source and a MAC-E filter spectrometer with an energy width of 0.93 eV as well as with large acceptance.
The experiment is set up at the Karlsruhe Institute of Technology (KIT), where the full beam line has been tested with combined commissioning experiments since the end of 2016. During these measurements photo-electrons, D2+ ions as well as conversion electrons from 83mKr were used.
The beam line, the tritium circulation and safety infrastructure are currently undergoing final installation and commissioning tests, while the operation and analysis teams are preparing for first tritium operation June 2018. This will be followed by careful systematic studies and a gradual increase of source strength before starting the real neutrino mass measurements.
This talk gives an overview of the current status of the KATRIN experiment, the major commissioning achievements and the final steps towards first tritium operation and beyond.
The work of the author is supported by BMBF Verbundforschung under contract 05A17PM3.