Speaker
Rustem Dzhelyadin
(State Res.Center of Russian Feder. Inst.f.High Energy Phys. (IFVE))
Description
Calorimeter detectors of the LHCb experiment consisting of Single Particle
Detector (SPD), Pre-Shower Detector (PRS) followed by the ”shashlyk” type
Electromagnetic Calorimeter (ECAL) and the Hadron Calorimeter (HCAL) are
described. The SPD and PRS consist of about 6000 channel scintillating
counters each with long transparent fibers readout on to Multi-anode
photomultipliers. The ECAL and HCAL amount to about 6000 and 1500
channels respectively, with high voltage power supplies of Cockroft-Walton
type that can be individually controlled by computer. An emphasis is made
on the construction details, preassembly tests and performance studies of
the detectors, both with cosmic particles and with the SPS test beam at
CERN. Various detector quality checks at different stages are described and
results are presented. Detectors have been installed and presently under
commissioning, using embedded light emitting diodes as well as a radioactive
source scan.
Author
Rustem Dzhelyadin
(State Res.Center of Russian Feder. Inst.f.High Energy Phys. (IFVE))
