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An overview of Cryogenic CsI — a future COHERENT detector

ORAL

Abstract

COHERENT collaboration is the first that observed Coherent elastic neutrino-nucleus scatter (CEvNS) events in 2017. A 14.6 kg doped CsI at room temperature was placed 20 meters away from the 1.4 MW Spallation Neutron Source (SNS) at the Oak Ridge National Laboratory (ORNL). The SNS pulsed proton beam provides a uniquely high background rejection and high-intensity neutrino source. CryoCsI is a cryogenic CsI scintillating detector, which potentially has a much lower energy threshold down to 0.4 keVnr. Working with other COHERENT detectors, CryoCsI can produce world-leading sensitivities on broad physics topics, such as inelastic neutrino-nucleus interactions, searches for accelerator-produced dark matter (DM) and physics beyond the Standard Model.

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Publication: Prospect of undoped inorganic crystals at 77 Kelvin for low-mass dark matter search at Spallation Neutron Source Dmitry Chernyak, Daniel Pershey, Jing Liu, Keyu Ding, Nathan Saunders, and Tupendra Oli, Eur. Phys. J. C, 80(6):547 (2020).<br>Light yield of cold undoped CsI crystal down to 13 keV and the application of such crystals in neutrino detection Keyu Ding, Dmitry Chernyak, and Jing Liu, Eur. Phys. J. C, 80(12):1146, 2020.<br>First operation of undoped CsI directly coupled with SiPMs at 77 Kelvin Keyu Ding, Jing Liu, Yongjin Yang, and Dmitry Chernyak, Eur. Phys. J. C, 82(4):344, 2022.<br>The COHERENT Experimental Program COHERENT Collaboration, arXiv preprint arXiv: 2204.04575<br>Performance of a liquid nitrogen cryostat setup for the study of nuclear recoils in undoped CsI crystals K. Ding, J. Liu, Y. Yang, K. Scholberg, D.M. Markoff, arXiv:2303.05437

Presenters

  • Keyu Ding

    University of South Dakota

Authors

  • Keyu Ding

    University of South Dakota