Forward calorimeters test beam results for future linear colliders

O. Novgorodova, K. Afanaciev, J. Aguilar, W. Daniluk, V. Ghenescu, H. Henschel, M. Idzik, A. Ignatenko, E. Kielar, Sz Kulis, S. Kollowa, W. Lange, I. Levy, W. Lohmann, T. Preda, S. Schuwalow, E. Teodorescu, L. Zawiejski

Research output: Contribution to journalConference articlepeer-review

Abstract

Two fully assembled sensor planes of the forward calorimeter prototypes for Future Linear Colliders were studied in an electron test beam in 2010-2011 at DESY. GaAs:Cr and Si sensors with pad structures were firstly characterized in the laboratory and then equipped with dedicated front-end electronics. The leakage current measured as a function of the bias voltage and temperature, and charge collection efficiency as a function of the bias voltage. In the beam multichannel readout was demonstrated to match the expected performance. A signal-to-noise ratio was measured of better than or equal to 20 for minimum ionising particles. The response as a function of the position on and between the pads was studied in detail.

Original languageEnglish
JournalProceedings of Science
Volume2012-July
StatePublished - 2012
Event36th International Conference on High Energy Physics, ICHEP 2012 - Melbourne, Australia
Duration: 4 Jul 201211 Jul 2012

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