First results of Resistive-Plate Well (RPWELL) detector operation at 163 K

We present for the first time, discharge-free operation at cryogenic conditions of a Resistive-Plate WELL (RPWELL) detector. It is a single-sided Thick Gaseous Electron Multiplier (THGEM) coupled to a readout anode via a plate of high bulk resistivity. The results of single- and double-stage RPWELL...

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Veröffentlicht in:Journal of instrumentation 2019-10, Vol.14 (10), p.P10014-P10014
Hauptverfasser: Roy, A., Morales, M., Israelashvili, I., Breskin, A., Bressler, S., Gonzalez-Diaz, D., Pecharromán, C., Shchemelinin, S., Vartsky, D., Arazi, L.
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Sprache:eng
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Zusammenfassung:We present for the first time, discharge-free operation at cryogenic conditions of a Resistive-Plate WELL (RPWELL) detector. It is a single-sided Thick Gaseous Electron Multiplier (THGEM) coupled to a readout anode via a plate of high bulk resistivity. The results of single- and double-stage RPWELL detectors operated in stable conditions in Ne/5%CH4 at 163 K are summarized. The RPWELL comprised a ferric-based (Fe3+) ceramic composite (“Fe-ceramic”) as the resistive plate, of volume resistivity ∼1011 Ωċcm at this temperature. Gains of ∼104 and ∼105 were reached with the single-stage RPWELL, with 6 keV X-rays and single UV-photons, respectively. The double-stage detector, a THGEM followed by the RPWELL, reached gains ∼105 and ∼106 with X-rays and single UV-photons, respectively. The results were obtained with and without a CsI photocathode on the first multiplying element. Potential applications at these cryogenic conditions are discussed.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/14/10/P10014