Novel Resistive-Plate WELL sampling element for (S)DHCAL

S. Bressler , P. Bhattacharya , A. Breskin , A.E.C. Coimbra , D. Shaked-Renous , A. Tesi , L. Moleri , M. Chefdeville (1) , G. Vouters (1) , J. Karyotakis (1) , C. Drancourt (1) , M. Titov (2) , T. Geralis

1 LAPP - Laboratoire d'Annecy de Physique des Particules
2 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers

Digital and Semi-Digital Hadronic Calorimeters (S)DHCAL were suggested for future Colliders as part of the particle-flow concept. Though studied mostly with RPC-based techniques, investigations have shown that Micro Pattern Gaseous Detector (MPGD)-based sampling elements could outperform in terms of average pad multiplicity or at higher rates. An attractive, industry-produced, robust, particle-tracking detector for large-area coverage, e.g. in (S)DHCAL, could be the novel single-stage Resistive Plate WELL (RPWELL). It is a single-sided THick Gaseous Electron Multiplier (THGEM) coupled to the segmented readout electrode through a sheet of large bulk resistivity. We summarize here the preliminary test-beam results obtained with 6.5 mm thick (incl. electronics) 48×48 cm 2  RPWELL detectors. Two configurations are considered: a standalone RPWELL detector studied with 150 GeV muons and high-rate pions beams and a RPWELL sampling element investigated within a small-(S)DHCAL prototype consisting of 7 resistive Micro-MEsh Gaseous Structure (MICROMEGAS) sampling elements followed by 5 RPWELL ones. The sampling elements were equipped with a Semi-Digital readout electronics based on the MICROROC chip.

Mots clés: Micropattern gaseous detectors (MPGD); THick Gaseous Electron Multiplier (THGEM); Resistive Plate WELL (RPWELL); Digital hadron calorimetry (DHCAL); Semi DHCAL (SDHCAL); Resistive electrodes; MICROROC; ILC; CLIC; CEPC; electronics: readout; calorimeter: hadronic; pi: irradiation; muon: irradiation; resistive plate chamber; gas electron multiplier; Micromegas; detector: design; performance

Domaines: Instrumentations et Détecteurs [physics.ins-det]; Physique des Hautes Energies - Expérience [hep-ex]

S. Bressler, P. Bhattacharya, A. Breskin, A.E.C. Coimbra, D. Shaked-Renous, et al.. Novel Resistive-Plate WELL sampling element for (S)DHCAL. 15th Vienna Conference on Instrumentation, Feb 2019, Vienna, Austria. pp.162861, ⟨10.1016/j.nima.2019.162861⟩. ⟨hal-02129682⟩