Study of Negative-Ion TPC Using μ-PIC for Directional Dark Matter Search [IMA]

http://arxiv.org/abs/1709.06219


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 {\mu}-PIC+GEM system and obtained sufficient gas gain with CS${2}$gas and SF${6}$ gas at low pressures. We expect an improvement in detector sensitivity and angular resolution with better electronics.

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T. Ikeda, K. Miuchi, A. Ochi, et. al.
Wed, 20 Sep 17
5/57

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