The XENON1T Demonstrator

ORAL

Abstract

We present the results from a facility called the XENON1T Demonstrator at Columbia University, that has been designed and built as a prototype for the XENON1T cryogenic system and TPC. Its primary goal is to demonstrate that the high LXe purity ($<1$ part per billion $O_2$ equivalent) required for electrons to drift freely over a distance of 1 meter, as in the XENON1T TPC, can be achieved and on a time scale of weeks. The approach adopted in all XENON detectors thus far is that of gas purification with continuous circulation with a diaphragm pump through a heated getter. We show results for high speed recirculation, above 100 slpm, the development of a high voltage feedthrough which is radio pure and the design and application of a prototype TPC to test the purity.

*NSF

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Authors

  • Ran Budnik

    • Columbia University

  • Elena Aprile

    • Columbia University

  • Bin Choi

    • Columbia University

  • Hugo Contreras

    • Columbia University

  • Luke Goetzke

    • Columbia University

  • Kyungeun Lim

    • Columbia University

  • Rafael Lang

    • Columbia University

  • Antonio Melgarejo

    • Columbia University

  • Rino Persiani

    • University of Bologna

  • Guillaume Plante

    • Columbia University

  • Alfio Rizzo

    • Columbia University

  • Peter Shagin

    • Rice University