Beam Studies of the Segmented Resistive WELL: a Potential Thin Sampling Element for Digital Hadron Calorimetry

Abstract

Thick Gas Electron Multipliers (THGEMs) have the potential of constituting thin, robust sampling elements in Digital Hadron Calorimetry (DHCAL) in future colliders. We report on recent beam studies of new single- and double-THGEM-like structures; the multiplier is a Segmented Resistive WELL (SRWELL) - a single-faced THGEM in contact with a segmented resistive layer inductively coupled to readout pads. Several 10$\times$10 cm${}^2$ configurations with a total thickness of 5-6 mm (excluding electronics) with 1 cm${}^2$ pads coupled to APV-SRS readout were investigated with muons and pions. Detection efficiencies in the 98 range were recorded with average pad-multiplicity of $\sim$1.1. The resistive anode resulted in efficient discharge damping, with potential drops of a few volts; discharge probabilities were $\sim 10^{-7}$ for muons and $\sim 10^{-6}$ for pions in the double-stage configuration, at rates of a few kHz/cm${}^2$. Further optimization work and research on larger detectors are underway.

Presented at the $13^{th}$ Vienna Conference on Instrumentation, February 2013 and submitted to its proceedings

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Cited by in corpus (12)

• The Resistive-WELL detector: a compact spark-protected single amplification-stage MPGD
• Experimental Tests of Particle Flow Calorimetry
• First studies with the Resistive-Plate WELL gaseous multiplier
• Laboratory studies of THGEM-based WELL structures with resistive anodes
• First in-beam studies of a Resistive-Plate WELL gaseous multiplier
• Recent advances with THGEM detectors
• The Thick Gas Electron Multiplier and its derivatives: physics, technologies and applications
• Studies of THGEM-based detector at low-pressure Hydrogen/Deuterium, for AT-TPC applications
• DHCAL with Minimal Absorber: Measurements with Positrons
• First results of Resistive-Plate Well (RPWELL) detector operation at 163 K
• A concept for laboratory studies of radiation detectors over a broad dynamic-range: instabilities evaluation in THGEM-structures
• p/${\pi }^{+}$ response of single layer THGEM detector in Ar/3%iC${}_4$H${}_{10}$