Beam studies of the segmented resistive WELL: A potential thin sampling element for digital hadron calorimetry

Lior Arazi, Carlos Davide Rocha Azevedo, Amos Breskin, Shikma Bressler, Luca Moleri, Hugo Natal Da Luz, Eraldo Oliveri, Michael Pitt, Adam Rubin, Joaquim Marques Ferreira Dos Santos, João Filipe Calapez De Albuquerque Veloso, Andrew Paul White

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Thick Gas Electron Multipliers (THGEMs) have the potential of constituting thin, robust sampling elements in Digital Hadron Calorimetry (DHCAL) at 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 10×10 cm2 configurations with a total thickness of 5-6 mm (excluding electronics) with 1 cm2 pads were investigated with muons and pions. The pads were coupled to a scalable readout system APV chip, APV-SRS (Raymond et al. [22]). Detection efficiencies in the 98% range were recorded with an average pad-multiplicity of ∼1.1. The resistive anode resulted in efficient discharge damping, with potential drops of a few volts; the discharge probabilities were ∼10-7 for muons and ∼10-6 for pions, at rates of a few kHz/cm2 and for detectors in the double-stage configuration. Further optimization work and research on larger detectors are underway.

Original languageEnglish
Pages (from-to)199-202
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
StatePublished - 2 Sep 2013
Externally publishedYes


  • Digital hadron calorimetry (DHCAL)
  • ILC
  • Micropattern gaseous detectors (MPGD)
  • Resistive electrode
  • SRS

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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