Developing planar detectors for studying contact properties in liquid argon

ORAL

Abstract

Electrical contact property is an important parameter for a germanium detector. The stability of electrical contact when directly immersed in liquid argon (LAr) is important for LEGEND-type detectors dedicated to measuring neutrinoless double-beta decay using 76Ge as a target. LAr also acts as an active shield for backgrounds. Cosmic rays and gamma radiation that does not fully deposit their energy in the germanium detector can be rejected with LAr scintillation light veto. Ultra-high purity LAr helps to improve light yield and attenuation of the noise signal. This can help to reduce the background level. Background reduction in the search for neutrinoless double beta decay is crucial to reach the higher sensitivity limit on half-life. We plan to study the background rejection and contact properties of a planar germanium detector immersed in the LAr at MPI this summer and compare it to operating at LN temperature at USD.

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Presenters

  • Rajendra Panth

    University of South Dakota

Authors

  • Rajendra Panth

    University of South Dakota

  • Wenzhao Wei

    University of South Dakota

  • Xianghua Meng

    University of South Dakota

  • Guojian Wang

    University of South Dakota

  • Hao Mei

    University of South Dakota, University of South Dakota, University of South Dakota

  • Jing Liu

    University of South Dakota, University of South Dakota, University of South Dakota

  • Gang Yang

    University of South Dakota

  • Dongming Mei

    University of South Dakota, University of South Dakota, University of South Dakota