-. GFK. CFK. Production:. Electrical Tests: internal calibration pulses reliable to detect common defects ( broken, short, pinhole ) in final modules simulated defects (artificial bonds) show similar behaviour than real ones. peakheight remainder. broken bond.
No bias voltage
Stefan Koestner (University Zurich)
on behalf of the Silicon Tracker Collaboration
The LHCb Silicon Tracker:
Radiation Damage (TT):
minimize R/O channels & radiation length:
large pitch O(200mm)(charge collection)
long strips 33cm (noise)
“thin” sensors (little charge)
40MHz, fast readout (noise)
signal remainder 25ns after peak specification: remainder < 0.5 (TT)
< 0.3 (IT)
Radiation Damage (IT):
Production tested on 4 IT and 7 TT modules so far, almost ready for full production !