Eur. Phys. J. C (2010) 67: 601-615
https://doi.org/10.1140/epjc/s10052-010-1316-4

Special Article - Tools for Experiment and Theory

Performance studies of a full-length prototype for the CASTOR forward calorimeter at the CMS experiment

¹ P.N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia
² Dept. of Phys., University of Ioannina, PO Box 1186, 45110, Ioannina, Greece
³ Dept. of Phys., University of Cukurova, 01330, Adana, Turkey
⁴ Dept. of Phys., Antwerp University, Groenenborgerlaan 171, 2020, Antwerpen, Belgium
⁵ Institute of Nuclear Physics, Radzikowskiego 152, 31342, Kraków, Poland
⁶ DESY, Hamburg, Germany
⁷ PH Dept., CERN, 1211, Geneva 23, Switzerland
⁸ Joint Institute for Nuclear Research, Dubna, Russia
⁹ Phys. Dept., University of Athens, 15701, Athens, Greece
¹⁰ Institute for High Energy Physics, Moscow, Russia
¹¹ ITEP Institute for Theoretical and Experimental Physics, Moscow, Russia
¹² Dept. of Physics, Northeastern University, Boston, MA, 02115, USA
¹³ Institute for Nuclear Research, Moscow, Russia
¹⁴ Moscow State University, Moscow, Russia
¹⁵ Mersin University, Mersin, Turkey

^* e-mail: Panagiotis.Katsas@cern.ch

Received: 5 November 2009
Revised: 19 March 2010
Published online: 30 April 2010

Abstract

We present performance studies of a full-length prototype for the CASTOR quartz-tungsten sampling calorimeter, installed in the very forward region of the CMS experiment at the LHC. The response linearity and energy resolution, the uniformity, as well as the showers’ spatial properties in the prototype have been studied with electrons, pions and muons of various energies. A special study was also carried out for testing the light-output with a 90-degree cut of the quartz plates of the calorimeter. The data were taken during the CASTOR test beam at CERN/SPS in 2007.