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arxiv 1603.04820 v1 pith:O2UDZPPF submitted 2016-03-15 physics.ins-det hep-ex

The Resistive-Plate WELL with Argon mixtures - a robust gaseous radiation detector

classification physics.ins-det hep-ex
keywords beamsdetectorefficiencymixturespionresistive-platerobustwell
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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A thin single-element THGEM-based, Resistive-Plate WELL (RPWELL) detector was operated with 150 GeV/c muon and pion beams in Ne/(5%CH$_4$), Ar/(5%CH$_4$) and Ar/(7%CO$_2$); signals were recorded with 1 cm$^2$ square pads and SRS/APV25 electronics. Detection efficiency values greater than 98% were reached in all the gas mixtures, at average pad multiplicity of 1.2. The use of the 10$^9${\Omega}cm resistive plate resulted in a completely discharge-free operation also in intense pion beams. The efficiency remained essentially constant at 98-99% up to fluxes of $\sim$10$^4$Hz/cm$^2$, dropping by a few % when approaching 10$^5$ Hz/cm$^2$. These results pave the way towards cost-effective, robust, efficient, large-scale detectors for a variety of applications in future particle, astro-particle and applied fields. A potential target application is digital hadron calorimetry.

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