DSpace at EWHA: Design and electronics commissioning of the physics prototype of a si-w electromagnetic calorimeter for the international linear collider

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Design and electronics commissioning of the physics prototype of a si-w electromagnetic calorimeter for the international linear collider

Title: Design and electronics commissioning of the physics prototype of a si-w electromagnetic calorimeter for the international linear collider

Authors: Repond J.; Yu J.; Hawkes M.; Mikami Y.; Miller O.; Watson K.; Wilson A.; Mavromanolakis G.; Thomson A.; Ward R.; Yan W.; Badaud F.; Boumediene D.; Crloganu C.; Cornat R.; Gay P.; Ph Gris; Manen S.; Morisseau F.; Royer L.; Blazey C.; Chakraborty D.; Dyshkant A.; Francis K.; Hedin D.; Lima G.; Zutshi V.; J-Y Hostachy; Morin L.; Garutti E.; Korbel V.; Sefkow F.; Groll M.; Kim G.; D-W Kim; Lee K.; Lee S.; Kawagoe K.; Tamura Y.; Bowerman A.; Dauncey D.; Magnan A.-M.; Noronha C.; Yilmaz H.; Zorba O.; Bartsch V.; Butterworth M.; Postranecky M.; Warren M.; Wing M.; Faucci Giannelli M.; Green G.; Salvatore F.; Wu T.; Bailey D.; Barlow J.; Kelly M.; Snow S.; Thompson J.; Danilov M.; Kochetkov V.; Baranova N.; Ermolov P.; Karmanov D.; Korolev M.; Merkin M.; Voronin A.; Bouquet B.; Callier S.; Dulucq F.; Fleury J.; Li H.; Martin-Chassard G.; Richard F.; De La Taille Ch.; Poeschl R.; Raux L.; Ruan M.; Seguin-Moreau N.; Wicek F.; Zhang Z.; Anduze M.; Boudry V.; Brient J.-C.; Clerc C.; Gaycken G.; Jauffret C.; Karar A.; Mora De Freitas P.; Musat G.; Reinhard M.; Rouge A.; Sanchez L.; J-Ch Vanel; Videau H.; Zacek J.; Cvach J.; Gallus P.; Havranek M.; Janata M.; Marcisovsky M.; Polak I.; Popule J.; Tomasek L.; Tomasek M.; Ruzicka P.; Sicho P.; Smolik J.; Vrba V.; Zalesak J.; Yu Arestov; Baird A.; Halsall N.; Nam W.; Park H.; Yang J.

Abstract: The CALICE collaboration is studying the design of high performance electromagnetic and hadronic calorimeters for future International Linear Collider detectors. For the electromagnetic calorimeter, the current baseline choice is a high granularity sampling calorimeter with tungsten as absorber and silicon detectors as sensitive material. A "physics prototype" has been constructed, consisting of thirty sensitive layers. Each layer has an active area of 18×18 cm2 and a pad size of 1×1 cm 2. The absorber thickness totals 24 radiation lengths. It has been exposed in 2006 and 2007 to electron and hadron beams at the DESY and CERN beam test facilities, using a wide range of beam energies and incidence angles. In this paper, the prototype and the data acquisition chain are described and a summary of the data taken in the 2006 beam tests is presented. The methods used to subtract the pedestals and calibrate the detector are detailed. The signal-over-noise ratio has been measured at 7.630.01. Some electronics features have been observed; these lead to coherent noise and crosstalk between pads, and also crosstalk between sensitive and passive areas. The performance achieved in terms of uniformity and stability is presented. © 2008 IOP Publishing Ltd. and SISSA.