Speaker
Oana Boeriu
(Department of Physics)
Description
The cathode strip chamber (CSC) system is one of the three types of muon
detectors used in the Compact Muon Solenoid (CMS) experiment at the
Large Hadron Collider (LHC). It consists of 468 chambers, with a total of
∼218k strips and ∼183k wires, divided into two endcaps. The chambers have
excellent signal-to-noise performance and they operate in a large non-
uniform magnetic field ranging from 1-3T without major deterioration in
their performance. To monitor the performance of the CSC front-end
electronics, a set of calibration tests which measure crosstalk, gains, noise
and connectivity are performed regularly. Using the strip-to-strip crosstalk
corrections in the offline tracking reconstruction results in an improvement
of the spatial resolution down to 50 μm. The calibration tests are described
here, together with the specific procedures for obtaining the necessary runs
for the EMU system. In 2006, the full chain of acquiring, analyzing and
applying the calibration constants was successfully tested for the first time
on the CSC system, using cosmic-ray data.
Author
Oana Boeriu
(Department of Physics)
