Ezeribe, A.C., Eldridge, C., Lynch, W. et al. (3 more authors) (2021) Demonstration of ThGEM-multiwire hybrid charge readout for directional dark matter searches. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 987. 164847. ISSN 0168-9002
Abstract
Sensitivities of current directional dark matter search detectors using gas time projection chambers are now constrained by target mass. A ton-scale gas TPC detector will require large charge readout areas. We present a first demonstration of a novel ThGEM-Multiwire hybrid charge readout technology which combines the robust nature and high gas gain of Thick Gaseous Electron Multipliers with lower capacitive noise of a one-plane multiwire charge readout in SF6 target gas. Measurements performed with this hybrid detector show an ion drift velocity of 139 ± 12 ms−1 in a reduced drift field E/N of 93 Td (10−17 V cm2) at a gas gain of 2470±160 in 20 Torr of pure SF6 target gas.
Metadata
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Copyright, Publisher and Additional Information: | © 2020 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). | ||||
Keywords: | ThGEM; Multiwire; Hybrid charge readout; Gas-TPC; S, F6, target gas; Dark matter; WIMPs | ||||
Dates: |
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Institution: | The University of Sheffield | ||||
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) | ||||
Funding Information: |
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Depositing User: | Symplectic Sheffield | ||||
Date Deposited: | 04 Oct 2019 13:53 | ||||
Last Modified: | 19 Jan 2022 09:08 | ||||
Status: | Published | ||||
Publisher: | Elsevier | ||||
Refereed: | Yes | ||||
Identification Number: | https://doi.org/10.1016/j.nima.2020.164847 | ||||
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