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Bonn 2020 – scientific programme

The DPG Spring Meeting in Bonn had to be cancelled! Read more ...

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T: Fachverband Teilchenphysik

T 76: Dark Matter III

T 76.9: Talk

Thursday, April 2, 2020, 18:30–18:45, H-HS XIV

Designing the XENONnT electric field — •Francesco Toschi for the XENON collaboration — Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany

The XENONnT experiment is the next phase of the XENON project and aims at the direct detection of dark matter via WIMP-nucleus scattering. Its dual-phase Time Projection Chamber (TPC) filled with 5.9 ton of liquid Xenon allows position reconstruction and interaction-type discrimination, necessary for WIMP detection. The applied electric field plays a crucial role in its detection capabilities: uniformity in the drift field means homogeneous response in the full active volume, while high intensity fields in the liquid-gas interface are needed for electron extraction. Numerical simulations are used both to optimize the design of the detector and to have a better understanding of the expected signals.

This talk will focus on the field shaping elements of the TPC and how the electric field simulations drove their design.

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