Speaker
Shiming Yuan
Description
The ALICE detector is undergoing an upgrade for Run 3 at the LHC. A new Inner Tracking System is part of this upgrade. The upgraded ALICE ITS features the ALPIDE, a Monolithic Active Pixel Sensor. Due to IC fabrication variations and radiation damages, the threshold values for the ALPIDE chips in ITS need to be measured and adjusted periodically to ensure the quality of data-taking. The calibration is implemented within the O$^2$ system, thus it runs in the same framework as the normal operation. This paper describes the concept and implementation of the calibration for the upgrade ALICE ITS.
