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arXiv · 2312.06809

Cryogenic RPWELL: a novel charge-readout element for dual-phase argon TPCs

A. Tesi·S. Leardini·L. Moleri·M. Morales·D. Gonzalez-Diaz·A. Jash·A. Breskin·S. Bressler
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Abstract

The first operation of a cryogenic Resistive Plate WELL (RPWELL) detector in the saturated vapor of liquid argon is reported. The RPWELL detector was composed of a Thick Gas Electron Multiplier (THGEM) electrode coupled to a metallic anode via Fe$_2$O$_3$/YSZ ceramics (Fe$_2$O$_3$ in weight equal to 75$\%$), with tunable bulk resistivity in the range 10$^{9}$ - 10$^{12}$ $\Omega\cdot$cm. The detector was operated at liquid argon temperature in saturated argon vapor (90~K, 1.2~bar) and characterized in terms of its effective charge gain and stability against discharges. Maximum stable gain of G$\approx$17 was obtained, without discharges. In addition, preliminary results from novel 3D-printed thermoplastic plates doped with carbon nanotubes are presented.

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A. Tesi, S. Leardini, L. Moleri, M. Morales, D. Gonzalez-Diaz, A. Jash, A. Breskin, S. Bressler. 2023-12-11. Cryogenic RPWELL: a novel charge-readout element for dual-phase argon TPCs. https://arxiv.org/abs/2312.06809

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