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25 April 2024 |
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Czochralski Silicon as a Detector Material for S-LHC Tracker Volumes | | Leonard Spiegel
; Tobias Barvich
; Burt Betchart
; Saptaparna Bhattacharya
; Sandor Czellar
; Regina Demina
; Alexander Dierlamm
; Martin Frey
; Yuri Gotra
; Jaakko Härkönen
; Frank Hartmann
; Ivan Kassamakov
; Sergey Korjenevski
; Matti J. Kortelainen
; Tapio Lampén
; Teppo Mäenpää
; Henri Moilanen
; Meenakshi Narain
; Maike Neuland
; Douglas Orbaker
; Hans-Jürgen Simonis
; Pia Steck
; Eija Tuominen
; Esa Tuovinen
; | | Date: |
24 Aug 2010 | | 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,$^circ$C, the charge collection efficiency
appears to be promising. | | Source: | arXiv, 1008.4107 | | Services: | Forum | Review | PDF | Favorites | |
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