CERN Accelerating science

Article
Report number arXiv:1008.4107 ; FERMILAB-PUB-10-298-E ; FERMILAB-PUB-10-298-E
Title Czochralski Silicon as a Detector Material for S-LHC Tracker Volumes
Author(s) Spiegel, Leonard (Fermilab) ; Barvich, Tobias (KIT, Karlsruhe, EKP) ; Betchart, Burt (Rochester U.) ; Bhattacharya, Saptaparna (Brown U.) ; Czellar, Sandor (Helsinki Inst. of Phys.) ; Demina, Regina (Rochester U.) ; Dierlamm, Alexander (KIT, Karlsruhe, EKP) ; Frey, Martin (KIT, Karlsruhe, EKP) ; Gotra, Yuri (Rochester U.) ; Harkonen, Jaakko (Helsinki Inst. of Phys.) Show all 25 authors
Publication 2011
Imprint 25 Aug 2010
Number of pages 4
Note Comments: 4 pages, 6 figures, 12th Vienna Conference on Instrumentation
4 pages, 6 figures, 12th Vienna Conference on Instrumentation
In: Nucl. Instrum. Methods Phys. Res., A 628 (2011) 242-245
In: 12th Vienna Conference on Instrumentation, Vienna, Austria, 15 - 20 Feb 2010, pp.242-245
DOI 10.1016/j.nima.2010.06.327
Subject category Detectors and Experimental Techniques
Accelerator/Facility, Experiment CERN LHC ; CMS
Abstract With an expected ten-fold increase in luminosity in S-LHC, the radiation environment in the tracker volumes will be considerably harsher for silicon-based detectors than the already harsh LHC environment. Since 2006, a group of CMS institutes, using a modified CMS DAQ system, has been exploring the use of Magnetic Czochralski silicon as a detector element for the strip tracker layers in S-LHC experiments. Both p+/n-/n+ and n+/p-/p+ sensors have been characterized, irradiated with proton and neutron sources, assembled into modules, and tested in a CERN beamline. There have been three beam studies to date and results from these suggest that both p+/n-/n+ and n+/p-/p+ Magnetic Czochralski silicon are sufficiently radiation hard for the R>25 cm regions of S-LHC tracker volumes. The group has also explored the use of forward biasing for heavily irradiated detectors, and although this mode requires sensor temperatures less than -50\,C, the charge collection efficiency appears to be promising.

Corresponding record in: Inspire


 Record created 2010-08-25, last modified 2023-03-24


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