SMuK 2023 – scientific programme
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T: Fachverband Teilchenphysik
T 66: Neutrinos II
T 66.4: Talk
Wednesday, March 22, 2023, 16:35–16:50, POT/0251
Modeling of RF signals in large-volume antenna-array CRES detectors — •Florian Thomas and Sebastian Böser for the Project 8 collaboration — Institut für Physik, Johannes Gutenberg-Universität Mainz
The Project 8 collaboration has established Cyclotron Radiation Emission Spectroscopy (CRES) as a novel frequency-based approach of measuring the tritium beta decay spectrum and determining neutrino mass with the endpoint method. To gather sufficient statistics for its design sensitivity of mβ < 40 meV the Project 8 experiment needs to be scaled up to a O(m3) source volume.
In the large-volume case a possible detection scheme for the radio frequency radiation emitted by the decay electrons is an antenna array with O(100) independent readout channels. In order to reconstruct the electron tracks comprehensive simulations are required. For this large number of channels, numerical solutions of the electron trajectory, the electromagnetic fields and the antenna response are computationally challenging. In this contribution we present an alternative simulation approach which is based on analytic knowledge about cyclotron radiation and O(1000) faster than our full numeric baseline approach with a negligible impact on the simulation results.