Micromegas for sampling calorimetry

Chefdeville, M.

doi:10.22323/1.213.0054

Cited by 4 publications

(8 citation statements)

References 2 publications

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“…Compared to other technologies explored under similar conditions, the performance of the 10×10 cm 2 RPWELL detector reported in this work, with respect to detection efficiency and pad multiplicity, is better than that of 1×1 m 2 RPCs [41,42] and 30×30 cm 2 GEM detectors [43] and similar to that of 1×1 m 2 MICROMEGAS [44,45].…”

Section: Summary and Discussionmentioning

confidence: 55%

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

et al. 2016

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We present the results of the first in-beam studies of a medium size (10×10 cm 2 ) Resistive-Plate WELL (RPWELL):a single-sided THGEM coupled to a pad anode through a resistive layer of high bulk resistivity (∼10 9 Ωcm). The 6.2 mm thick (excluding readout electronics) single-stage detector was studied with 150 GeV muons and pions. Signals were recorded from 1×1 cm 2 square copper pads with APV25-SRS readout electronics. The single-element detector was operated in Ne/(5%CH 4 )at a gas gain of a few times 10 4 , reaching 99% detection efficiency at average pad multiplicity of ∼1.2. Operation at particle fluxes up to ∼10 4 Hz/cm 2 resulted in ∼23% gain drop leading to ∼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.

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Section: Summary and Discussionmentioning

confidence: 55%

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

et al. 2016

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“…Compared to other detector technologies explored under similar conditions, e.g. for the DHCAL, the performance of the 10×10 cm 2 RPWELL detector, with respect to detection efficiency and pad multiplicity, is superior to that of 1×1 m 2 RPCs [17,19] and 30×30 cm 2 GEM detectors [20]; it is similar to that of 1×1 m 2 MICROMEGAS [21,22]. The efficiency dependence on the incoming particle flux is similar to that of multi-gap RPCs based on semi-conductive glass [23].…”

Section: Summary and Discussionmentioning

confidence: 88%

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

Moleri

Amaro

Arazi

et al. 2017

Nuclear Instruments and Methods in Physics Research Section A:

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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 Ωcm 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 ∼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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“…Such performance suggests that within the framework of particle-flow, an RPWELL-based DHCAL with a close-to-optimal performance could reach the targeted jet-energy resolution [1]. Following [7,25], two optional response parametrizations were investigated: a power-law (eq. (3.2)) and a logarithmic (eq.…”

Section: Summary and Discussionmentioning

confidence: 99%

“…(3.2) [7]) and a logarithmic (eq. (3.3) [25]) parametrizations (the two options suggested in [7,25]):…”

Section: Energy Reconstructionmentioning

confidence: 99%

Test-beam and simulation studies towards RPWELL-based DHCAL

et al. 2022

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Digital Hadronic Calorimeters (DHCAL) were suggested for future Colliders as part of the particle-flow concept. Though studied mainly with RPC, studies focusing on sampling elements based on Micro-Pattern Gaseous Detector have shown the potential advantages; they can be operated with environment-friendly gases and reach similar detection efficiency at lower average pad multiplicity. We summarize here the experimental test-beam results of a small-size DHCAL prototype, incorporating six Micromegas and two RPWELL sampling elements, interlaced with steel-absorber plates. It was investigated with 2–6 GeV pion beams at the CERN/PS beam facility. The data permitted validating a GEANT4 simulation framework of a DHCAL, and evaluating the expected pion energy resolution of a full-scale RPWELL-based calorimeter. The pion energy resolution derived for the RPWELL concept is competitive to that of glass RPC and Micromegas sampling techniques.

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Micromegas for sampling calorimetry

Cited by 4 publications

References 2 publications

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

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

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

Test-beam and simulation studies towards RPWELL-based DHCAL

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