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With an expected ten-fold increase in luminosity in S-LHC, the radiationenvironment in the tracker volumes will be considerably harsher forsilicon-based detectors than the already harsh LHC environment. Since 2006, agroup of CMS institutes, using a modified CMS DAQ system, has been exploringthe use of Magnetic Czochralski silicon as a detector element for the striptracker layers in S-LHC experiments. Both p+/n-/n+ and n+/p-/p+ sensors havebeen characterized, irradiated with proton and neutron sources, assembled intomodules, and tested in a CERN beamline. There have been three beam studies todate and results from these suggest that both p+/n-/n+ and n+/p-/p+ MagneticCzochralski silicon are sufficiently radiation hard for the $R>25$ cm regionsof S-LHC tracker volumes. The group has also explored the use of forwardbiasing for heavily irradiated detectors, and although this mode requiressensor temperatures less than -50\,$^\circ$C, the charge collection efficiencyappears to be promising.

Czochralski Silicon as a Detector Material for S-LHC Tracker Volumes