Münster 2017 – scientific programme

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T: Fachverband Teilchenphysik

T 59: Gammaastronomie 3

T 59.6: Talk

Tuesday, March 28, 2017, 18:10–18:25, H 2

Revisiting a Compton/Pair-Telescope using Liquid Xenon TPC Technology — •Jan Peter Lommler, Matteo Alfonsi, Christopher Hils, and Uwe Oberlack — Johannes Gutenberg-Universität Mainz

In the late 90’s Aprile et al. were able to show the usability of liquid xenon time projection chambers for astronomical gamma ray imaging as a Compton telescope. Considering technological advancements and improved understanding of liquid xenon detector technology from Dark Matter searches, we are revisiting an extended concept for a Compton/Pair-Telescope in the energy range of ∼0.3 to ∼10 MeV in Compton mode and from ∼10 MeV to few GeV in pair-production mode, using an LXeTPC as position-sensitive calorimeter in combination with a tracker. At the current stage, we use Monte Carlo simulations to model instrument response and backgrounds to assess an expected performance envelope. The goal is to better understand design choices and to compare its performance against conventional current proposals, such as, e.g., eASTROGAM.