Würzburg 2018 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 55: Neutrinophysik VII

T 55.6: Vortrag

Mittwoch, 21. März 2018, 17:45–18:00, Z6 - HS 0.001

Forward Beam Monitor data from the KATRIN krypton measurement phase — •Stephanie Hickford for the KATRIN collaboration — Bergische Universität Wuppertal

The KATRIN collaboration aims to measure the neutrino mass with a sensitivity of 200 meV. This will be done by observing the β-electron spectrum from the decay of tritium. The tritium source properties need to be stable, and known to a high precision, in order to accurately measure the neutrino mass. For this reason the source will undergo extensive measurements from several monitoring systems. The Forward Beam Monitor (FBM) is one such monitoring system.

A KATRIN krypton measurement phase took place during July 2017. The gaseous ^83mKr part of this measurement phase involved the entire KATRIN beamline, including the source section and the FBM. Initial krypton spectra were measured using the FBM pin diode detectors, the magnetic fluxtube was mapped, and early temperature impacts on the system operation were observed. These results, and related progress since the krypton measurement phase, are presented in this talk.