Speaker
Taka Kondo
(KEK)
Description
ATLAS barrel SCT sensors have received so far about 0.5 to 1 e12 1MeV-neutron-equivalent fluence per cm**2 from 7-TeV pp collisions at LHC. The HV currents reached up to several micro-Amps/cm**3 at 0 C, assuming they are all due to bulk generation current. Their time dependences are compared with predictions by two leakage current models with self-annealing effects. The prediction takes into account of time-profile of the sensor temperature as well as the fluence estimate based on the FLUKA simulation. Fairly good agreements are obtained between data and predictions. In addition, we report the time profiles of the equivalent-noise-charges ENC measured in calibration runs.
Author
Taka Kondo
(KEK)
Co-author
Paul Dervan
(University of Liverpool)
