Joint annual meeting of Swiss and Austrian Physical Societies 2017

【341】 Radiation damage in the LHCb silicon tracker

24 Aug 2017, 14:00

15m

Talk Nuclear, Particle- and Astrophysics (TASK - FAKT) Nuclear, Particle-and Astrophysics (TASK-FAKT)

Speaker

Elena Graverini (Universitaet Zuerich (CH))

Description

The purpose of LHCb is to search for indirect evidence of new physics in decays of heavy hadrons. The LHCb detector is a single-arm forward spectrometer with precise silicon-strip detectors in the regions with highest particle occupancies. The non-uniform exposure of the LHCb sensors makes it an ideal laboratory to study radiation damage effects in silicon detectors.
Dedicated scans are regularly taken, which allow a precise measurement of the charge collection efficiency (CCE) and the calibration of the operational voltages.
The measured evolution of the effective depletion voltage $V_{depl}$ will be shown, and compared with the Hamburg model prediction. The overall performance of the LHCb silicon tracker will be presented.

Presentation materials

Graverini.pdf