Radiation tolerance of oxygenated n-strip read-out detectors

✍ Scribed by P.P. Allport; G. Casse; A. Greenall

• Book ID: 103852398
• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 212 KB
• Volume: 513
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2003.08.007

✦ Synopsis

Following earlier work on 'oxygenated' detectors in terms of charge collection efficiencies after proton irradiation, full-size detectors for the LHC have been processed with n-side read-out on oxygen enhanced n-type silicon substrates. Two hundred-micron-thick detectors have been inhomogeneously irradiated up to doses of 7 Â 10 14 p=cm 2 using 24 GeV protons from the CERN PS. Results are presented on the charge collection efficiencies as a function of operating voltage for regions of the detectors irradiated to different doses, using LHC speed analogue read-out electronics. The measurements confirm the expectations which led to our original proposal of such detectors which are now being envisaged for the silicon-based detector systems at the LHC designed to withstand the greatest doses. The possibilities for survival at an upgraded luminosity LHC (Super-LHC) are also briefly discussed.