Construction and test of a 1×1m2 Micromegas chamber for sampling hadron calorimetry at future lepton colliders

Adloff, C.; Blaha, J.; Chefdeville, M.; Dalmaz, A.; Drancourt, C.; Espargilière, A.; Gaglione, R.; Geffroy, N.; Girard, D.; Jacquemier, J.; Karyotakis, Y.; Koletsou, I.; Peltier, F.; Samarati, J.; Tsigaridas, S.; Tsipolitis, G.; Vouters, G.

doi:10.1016/j.nima.2013.06.081

Cited by 16 publications

(12 citation statements)

References 17 publications

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“…A 3 mm drift gap is defined by a drift electrode glued on a square plastic frame that also serves for gas distribution. Readout is done with the acquisition system of the large-area prototypes described in [1]. Resistive prototypes integrate resistive elements and insulators between the anode plane and the Bulk mesh.…”

Section: Experimental Set-upmentioning

confidence: 99%

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Micromegas for sampling calorimetry

Chefdeville¹

2015

Proceedings of Technology and Instrumentation in Particle Physics 2014 — PoS(TIPP2014)

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Micromegas is an attractive option for a gaseous sampling calorimeter. It delivers proportional and fast signals, achieves high efficiency to minimum ionising particles with a compact design and shows well-uniform performance over meter-square areas. The current R&D focuses on largesize spark-protected Micromegas with integrated front-end electronics. It targets an application at future linear colliders (LC) and possible upgrades of LHC experiments for the running at high luminosity. In the later case, occasional sparking should be suppressed to avoid dead-time and technical solutions using resistive coatings are investigated. Small prototypes of resistive and non-resistive Micromegas were constructed and tested in a beam at DESY. Results are reported with emphasis on the impact of the resistive layer on the detector performance.

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Section: Experimental Set-upmentioning

confidence: 99%

“…Micromegas is one detector option for a digital hadron calorimeter at a future linear collider. Large-area prototypes of 1×1 m 2 [1] achieve excellent performance for the targeted application [2]. For higher rate applications, however, occasional sparking creates prohibitive dead-time and should therefore be suppressed.…”

Section: Introductionmentioning

confidence: 99%

Micromegas for sampling calorimetry

Chefdeville¹

2015

Proceedings of Technology and Instrumentation in Particle Physics 2014 — PoS(TIPP2014)

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“…Its expected performance can only be achieved with stringent constrains on the mechanics and electronics of the sampling layers [5]. Three Micromegas prototypes fulfulling some of the constraints were built [6]. Their main features are a large sensitive area (∼ 1×1 m 2 ), a compact mechanical design (Bulk Micromegas [7], embedded ASICs) and ILC-specific front-end electronics (self-triggering, powerpulsing).…”

Section: Micromegas For Sampling Calorimetrymentioning

confidence: 99%

“…A detailed description of the prototypes can be found in [6]. Only a few points essential to the understanding of the reported measurements are recalled here.…”

Section: The 1×1 M 2 Micromegas Prototypementioning

confidence: 99%

Test in a beam of large-area Micromegas chambers for sampling calorimetry

Adloff¹,

Chefdeville²,

Dalmaz³

et al. 2014

Nuclear Instruments and Methods in Physics Research Section A:

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Application of Micromegas for sampling calorimetry puts specific constraints on the design and performance of this gaseous detector. In particular, uniform and linear response, low noise and stability against high ionisation density deposits are prerequisites to achieving good energy resolution. A Micromegasbased hadronic calorimeter was proposed for an application at a future linear collider experiment and three technologically advanced prototypes of 1×1 m 2 were constructed. Their merits relative to the above-mentioned criteria are discussed on the basis of measurements performed at the CERN SPS test-beam facility.

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“…∼ 10 4 times the energy deposited by a minimum ionising particle). Three projects are currently focusing on double-GEM [20], thick-GEM [21] and Micromegas [22,23]. The latter is most advanced and tightly related to the RPC-SDHCAL project with which it shares common detector specifications.…”

Section: Gaseous Detectorsmentioning

confidence: 99%

Development of highly granular calorimeters in CALICE

Chefdeville¹

2014

Proceedings of the European Physical Society Conference on High Energy Physics — PoS(EPS-HEP 2013)

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The design of calorimeter systems for a detector at a future e + e − Linear Collider (ILC, CLIC) is largely driven by the requirements of jet reconstruction. The particle flow technique has been shown to be capable of achieving an energy resolution ∼ 30% / √ E, permitting the discrimination of W and Z bosons in their hadronic decays. Such performance requires the separation of neutral and charged energy deposits in the calorimeters, which in turn demands that they have high spatial granularity both transversely and longitudinally, and be placed within the magnet coil. The CALICE collaboration has been developing prototype calorimeters to meet these requirements. The electromagnetic calorimeter is based on tungsten absorbers and active layers of silicon pads of ∼ 5×5 mm 2 and/or crossed short scintillator strips of ∼ 5×45 mm 2 . The hadronic calorimeter could use iron or tungsten absorbers, sampled using either scintillator tiles of ∼ 3×3 cm 2 or gaseous detectors with ∼ 1×1 cm 2 readout. The scintillator option uses an analogue readout, while the gas detectors (RPCs, Micromegas or GEMs) use either digital (1 bit) or semi-digital (2 bit) readout. All these options are being pursued in CALICE. Key issues include: extreme compactness, hermeticity and scalability, power cycling and precise timing. We report on recent R&D and test beam activities from CALICE which address all these key questions.

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Construction and test of a 1×1m2 Micromegas chamber for sampling hadron calorimetry at future lepton colliders

Cited by 16 publications

References 17 publications

Micromegas for sampling calorimetry

Micromegas for sampling calorimetry

Test in a beam of large-area Micromegas chambers for sampling calorimetry

Development of highly granular calorimeters in CALICE

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