Publication: MPGD simulation in negative-ion gas for direction-sensitive dark matter searches
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2020
Авторы
Ishiura, H.
Miuchi, K.
Tomonori, I.
Veenhof, R.
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© 2020 Published under licence by IOP Publishing Ltd.Negative-ion time projection chambers (NITPCs) provide the absolute z-position from the arrival-times' difference of several species of negative-ions. This is a strong background reduction method for rare event searches, such as direct dark mater searches. The characteristics of micro pattern gaseous detectors (MPGDs) in negative-ion gas were studied by both experiments and simulations to develop an NITPC for dark matter search experiments. An MPGD simulation method for the negative-ion gas with Garfield++, which has not yet been established, was developed. We present herein the MPGD simulation results in negative-ion gas, SF6 gas, together with the experimental results, such as gain, energy resolution, and signal creation from the MPGD for future NITPC optimization.
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MPGD simulation in negative-ion gas for direction-sensitive dark matter searches / Ishiura, H. [et al.] // Journal of Physics: Conference Series. - 2020. - 1498. - № 1. - 10.1088/1742-6596/1498/1/012018