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Beam test of a small MICROMEGAS DHCAL prototype

A sampling hadronic calorimeter with gaps instrumented with thin MICROMEGAS chambers of small pad size and single bit readout is a candidate for an experiment at a future linear collider. Several MICROMEGAS chambers with 1 cm(2) anode pads were fa bricated using the Bulk technology. Some prototypes...

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Detalles Bibliográficos
Autores principales: Adloff, C, Blaha, J, Chefdeville, M, Dalmaz, A, Drancourt, C, Espargiliere, A, Gaglione, R, Karyotakis, Y, Prast, J, Vouters, G
Lenguaje:eng
Publicado: 2010
Materias:
Acceso en línea:https://dx.doi.org/10.1088/1748-0221/5/01/P01013
http://cds.cern.ch/record/2637461
Descripción
Sumario:A sampling hadronic calorimeter with gaps instrumented with thin MICROMEGAS chambers of small pad size and single bit readout is a candidate for an experiment at a future linear collider. Several MICROMEGAS chambers with 1 cm(2) anode pads were fa bricated using the Bulk technology. Some prototypes equipped with analog readout GASSIPLEX chips were developed for characterisation at the CERN/PS facility. A stack of four chambers and stainless steal absorber plates was used to assess the behaviour of MICROMEGAS in 2 GeV/c electron showers. Longitudinal and transverse shower profile are shown. The Bulk fabrication process was adapted to laminate a mesh on anode PCBs with front-end chips connected on the backside. It is well suited for the construction of a 1 m(3) DHCAL MICROMEGAS prototype as large and thin chambers can be made. Such chambers with digital readout chips (HARDROC or DIRAC) were fabricated and tested in a beam. First results are presented.