Study of Negative-Ion TPC Using μ-PIC for Directional Dark Matter Search
Department of Physics, Kobe University, Rokkodaicho, Nada Hyogo 657-8501
2 Department of Physics, Occidental College, Los Angeles, CA 90041, USA
3 Department of Physics, Kyoto University, Kitashirakawaoiwakecho, Sakyo, Kyoto 606-8502, Japan
a e-mail: email@example.com
Published online: 21 February 2018
Negative-ion time projection chambers(TPCs) have been studied for low-rate and high-resolution applications such as dark matter search experiments. Recently, a full volume fiducialization in a self-triggering TPC was realized. This innovative technology demonstrated a significant reduction in the background with MWPC-TPCs. We studied negative-ion TPC using the μ-PIC+GEM system and obtained sufficient gas gain with CS2 gas and SF6 gas at low pressures. We expect an improvement in detector sensitivity and angular resolution with better electronics.
© The Authors, published by EDP Sciences, 2018
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