CERN Accelerating science

Article
Report number	arXiv:1506.05316
Title	Construction and commissioning of a technological prototype of a high-granularity semi-digital hadronic calorimeter
Related title	Construction and commissioning of a technological prototype of a high-granularity semi-digital hadronic calorimeter
Author(s)	Baulieu, G. (Lyon, IPN) ; Bedjidian, M. (Lyon, IPN) ; Belkadhi, K. (Ecole Polytechnique) ; Berenguer, J. (Madrid, CIEMAT) ; Boudry, V. (Ecole Polytechnique) ; Calabria, P. (Lyon, IPN) ; Callier, S. ; Calvo Almillo, E. (Madrid, CIEMAT) ; Cap, S. (Savoie U.) ; Caponetto, L. ; Combaret, C. (Lyon, IPN) ; Cornat, R. (Ecole Polytechnique) ; Cortina Gil, E. (Valencia U., IFIC) ; de Callatay, B. (Louvain U., CP3) ; Davin, F. (Louvain U., CP3) ; de la Taille, C. (Ecole Polytechnique) ; Dellanegra, R. (Lyon, IPN) ; Delaunay, D. (Lyon, IPN) ; Doizon, F. (Orsay, IPN) ; Dulucq, F. (Orsay, LAL) ; Eynard, A. (Lyon, IPN) ; Fouz, M.C. (Madrid, CIEMAT) ; Gastaldi, F. (Ecole Polytechnique) ; Germani, L. (Lyon, IPN) ; Grenier, G. (Lyon, IPN) ; Haddad, Y. (Ecole Polytechnique) ; Han, R. (Peking U.) ; Ianigro, J.C. (Lyon, IPN) ; Kieffer, R. (Lyon, IPN) ; Laktineh, I. (Lyon, IPN) ; Lumb, N. (Lyon, IPN) ; Manai, K. (Sfax U.) ; Mannai, S. (Louvain U., CP3) ; Mathez, H. (Lyon, IPN) ; Mirabito, L. (Lyon, IPN) ; Prast, J. (Annecy, LAPP) ; Puerta Pelayo, J. (Madrid, CIEMAT) ; Ruan, M. (Ecole Polytechnique) ; Schirra, F. (Lyon, IPN) ; Seguin-Moreau, N. (Ecole Polytechnique) ; Steen, A. (Lyon, IPN) ; Tromeur, W. (Lyon, IPN) ; Tytgat, M. (Florida Inst. Tech.) ; Vander Donckt, M. (Lyon, IPN) ; Vouters, G. (Annecy, LAPP) ; Zaganidis, N. (Florida Inst. Tech.)
Publication	2015-10-26
Imprint	15 Jun 2015
Number of pages	49
Note	Comments: 49 pages, 41 figures 49 pages, 41 figures
In:	JINST 10 (2015) P10039
DOI	10.1088/1748-0221/10/10/P10039
Subject category	hep-ex ; Detectors and Experimental Techniques ; physics.ins-det ; Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN SPS CERN SPS
Test beam	H2
Abstract	A large prototype of 1.3m3 was designed and built as a demonstrator of the semi-digital hadronic calorimeter (SDHCAL) concept proposed for the future ILC experiments. The prototype is a sampling hadronic calorimeter of 48 units. Each unit is built of an active layer made of 1m2 Glass Resistive Plate Chamber(GRPC) detector placed inside a cassette whose walls are made of stainless steel. The cassette contains also the electronics used to read out the GRPC detector. The lateral granularity of the active layer is provided by the electronics pick-up pads of 1cm2 each. The cassettes are inserted into a self-supporting mechanical structure built also of stainless steel plates which, with the cassettes walls, play the role of the absorber. The prototype was designed to be very compact and important efforts were made to minimize the number of services cables to optimize the efficiency of the Particle Flow Algorithm techniques to be used in the future ILC experiments. The different components of the SDHCAL prototype were studied individually and strict criteria were applied for the final selection of these components. Basic calibration procedures were performed after the prototype assembling. The prototype is the first of a series of new-generation detectors equipped with a power-pulsing mode intended to reduce the power consumption of this highly granular detector. A dedicated acquisition system was developed to deal with the output of more than 440000 electronics channels in both trigger and triggerless modes. After its completion in 2011, the prototype was commissioned using cosmic rays and particles beams at CERN.
Copyright/License	arXiv nonexclusive-distrib. 1.0

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