High-voltage performance of silicon detectors irradiated under bias

The CMS preshower detector contains 16 m/sup 2/ of silicon. The silicon sensors' design is being finalized by taking into account their performance after five years of operation at high luminosity. Three detectors from different manufacturers were irradiated by neutrons and photons under bias and at low temperature. Their electrical parameters and their response to alpha and beta particles were measured. The charge collection efficiency attains a plateau at around 300 V. The irradiation set-up and the results of the measurements are presented in this paper. (17 refs)

High Voltage Performance of Silicon Detectors Irradiated under Bias

The CMS Preshower detector contains 16 sq. m of silicon. The silicon sensors' design is being finalized by taking into account their performance after five years of operation at high luminosity. Three detectors from different manufacturers were irradiated by neutrons and photons under bias and at low temperature. Their electrical parameters and their response to alpha and beta particles were measured. The charge collection efficiency attains a plateau at around 300 V. The irradiation set-up and the results of the measurements are presented in this paper

The CMS silicon tracker at LHC

The paper describes the Silicon Tracking System of the Compact Muon Solenoid (CMS) experiment that is foreseen to collect events from p-p collision at the E-cm = 14 TeV at the CERN future Large Hadron Collider (LHC). The proposed system consists of four layers of silicon microstrip detectors placed between the two inner layers of the pixel detector and the outer microstrip gas chamber system. The barrel part covers the eta region up to 1.8, instrumenting the central radial region between 20 and 50 cm. The forward-backward disks extend the coverage up to eta = 2.6. This paper will review the main characteristics and performances of the system, the actual status of the R&D activities that we are carrying on, and the status of the milestones we have to fulfill in view of the Technical Design Report expected at the end of the year. (C) 1998 Elsevier Science B.V. All rights reserved

The CMS silicon tracker at LHC

The paper describes the Silicon Tracking System of the Compact Muon Solenoid (CMS) experiment that is foreseen to collect events from p-p collision at the E-cm = 14 TeV at the CERN future Large Hadron Collider (LHC). The proposed system consists of four layers of silicon microstrip detectors placed between the two inner layers of the pixel detector and the outer microstrip gas chamber system. The barrel part covers the eta region up to 1.8, instrumenting the central radial region between 20 and 50 cm. The forward-backward disks extend the coverage up to eta = 2.6. This paper will review the main characteristics and performances of the system, the actual status of the R&D activities that we are carrying on, and the status of the milestones we have to fulfill in view of the Technical Design Report expected at the end of the year. (C) 1998 Elsevier Science B.V. All rights reserved