Design and performance of the cooling system for the electromagnetic calorimeter of CMS

Author

Baillon, P. ; Cogan, J. ; Ferri, F. ; Franzoni, G. ; Ghezzi, A. ; Govoni, P. ; Negri, P. ; Paganoni, N. ; Pastrono, N. ; Pullia, A. ; Ragazzi, S. ; Redaelli, N. ; Rovelli, C. ; Salerno, R. ; De Fatis, T. Tabarelli ; Teller, O.

Author_Institution

EP Div., CERN, Geneva, Switzerland

Volume

3

fYear

2004

fDate

18-20 May 2004

Firstpage

1861

Abstract

For the physics program of the CMS experiment at the LHC to be carried out successfully, excellent electromagnetic calorimetry is required. Given the thermal properties of CMS ECAL, keeping the constant term of the energy resolution below 0.5% needs its temperature to be stabilized at 18°C within 0.05°C. A prototype module of ECAL with the final cooling system has been tested at CERN to check its integration with the read-out electronics and verify that it complies with the severe thermal requirements. The thermal performance of the cooling system is reported here.

Keywords

calorimeters; cooling; particle calorimetry; readout electronics; solid scintillation detectors; 18 C; CMS electromagnetic calorimeter; ECAL module; energy resolution; final cooling system; homogeneous electromagnetic calorimeter; mounting procedure; readout electronics integration; scintillating crystals; thermal performance; Calorimetry; Collision mitigation; Electronic equipment testing; Electronics cooling; Energy resolution; Large Hadron Collider; Physics; Prototypes; System testing; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2004. IMTC 04. Proceedings of the 21st IEEE

ISSN

1091-5281

Print_ISBN

0-7803-8248-X

Type

conf

DOI

10.1109/IMTC.2004.1351446

Filename

1351446