Aachen 2019 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 33: Neutrino-Detektoren I
T 33.7: Vortrag
Dienstag, 26. März 2019, 17:30–17:45, S07
Atomic Tritium Source Design for Project 8 — •Alec Lindman, Sebastian Böser, and Peter Peiffer — PRISMA+ Cluster of Excellence, Johannes Gutenberg Universität Mainz
Project 8 is a phased approach to measuring the absolute neutrino mass with Cyclotron Radiation Emission Spectroscopy of tritium β decay electrons. All existing tritium β decay mν measurements use molecular T2, which has a relatively broad final state spectrum. An atomic T source and a ∼ 10 m3 fiducial trap volume will enable the design sensitivity. This talk will discuss the motivations for an atomic T source in light of engineering feasibility and the design sensitivity, including recent results from a hydrogen test stand. Parallel technology development efforts in Project 8 aim to deliver a trap with magnetic field uniformity of 10−7, filled with T having a T2 contamination less than 10−6 and instrumented with a spatially resolving antenna array to measure the femtowatt CRES signals. In such a trap, one year of runtime with 1018 T atoms should provide 40 meV sensitivity to the neutrino mass.