SSD alignment
First order alignment with cosmics using the SPD trigger
- Coincidence between top outer SPD layer and bottom outer SPD layer (rate: 0.18 Hz)
SSD calibration
- Charge distribution measured on all the SSD modules
- MPV stable within few percent.
- SSD in excellent shape: Signal/noise ~40
- Gain map tuned at the module level from the collision data
SDD-SSD dE/dx measure
Truncated mean from SDD+SSD dE/dx vs. track momentum (ITS standalone)
SDD/SSD data taking during pp collisions
