First in-beam studies of a Resistive-Plate WELL gaseous multiplier

Abstract

We present the results of the first in-beam studies of a medium size (10$\times$10 cm${}^2$) Resistive-Plate WELL (RPWELL): a single-sided THGEM coupled to a pad anode through a resistive layer of high bulk resistivity ($\sim$10${}^9\Omega$cm). The 6.2~mm thick (excluding readout electronics) single-stage detector was studied with 150~GeV muons and pions. Signals were recorded from 1$\times$1 cm${}^2$ square copper pads with APV25-SRS readout electronics. The single-element detector was operated in Ne\(5% $\mathrm{C}{\mathrm{H}}_4$) at a gas gain of a few times 10${}^4$, reaching 99$\%$ detection efficiency at average pad multiplicity of $\sim$1.2. Operation at particle fluxes up to $\sim$10${}^4$ Hz/cm${}^2$ resulted in $\sim$23$\%$ gain drop leading to $\sim$5$\%$ efficiency loss. The striking feature was the discharge-free operation, also in intense pion beams. These results pave the way towards robust, efficient large-scale detectors for applications requiring economic solutions at moderate spatial and energy resolutions.

Accepted by JINST

References in corpus (11)

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Cited by in corpus (10)

• Gain stabilization in Micro Pattern Gaseous Detectors: methodology and results
• The Resistive-Plate WELL with Argon mixtures - a robust gaseous radiation detector
• The Thick Gas Electron Multiplier and its derivatives: physics, technologies and applications
• Signal Formation in THGEM-like Detectors
• On the localization properties of an RPWELL gas-avalanche detector
• Electrical breakdown in Thick-GEM based WELL detectors
• In-beam evaluation of a medium-size Resistive-Plate WELL gaseous particle detector
• First results of Resistive-Plate Well (RPWELL) detector operation at 163 K
• Evolution and Recent Developments of the Gaseous Photon Detectors Technologies
• Single Electron Spectra in RPWELL-based detectors