Würzburg 2018 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 31: Neutrinophysik VI
T 31.7: Vortrag
Dienstag, 20. März 2018, 18:00–18:15, Z6 - HS 0.001
Alignment simulations for the KATRIN experiment — •Marco Deffert for the KATRIN collaboration — Karlsruhe Institute of Technology (KIT), ETP, Postfach 3640, 76021 Karlsruhe
The Karlsruhe Tritium Neutrino (KATRIN) experiment aims to determine the effective neutrino mass with a sensitivity of mν= 0.2 eV/c2 (90% C.L.) by measuring the enegry of electrons from the tritium β-decay. The β-electrons produced in the windowless gaseous tritium source (WGTS) are magnetically guided through the beamlines of the transport and pumping section to the huge main spectrometer for energy measurement. In the center of the main spectrometer, the so called analyzing plane, the magnetic field is minimal and the electric retarding potential is maximal. In order to get the exact potential for each detector pixel, the trajectory of the electrons is simulated backwards from the detector to the analyzing plane. The simulations include all known misalignment of magnetic coils and beam tube elements but up to now, uncertainties on these misalignments were not taken into account. A first attempt to include uncertainties in the simulations for the KATRIN experiment and resulting systematics on the potential will be presented. This work was supported by KSETA.