Speaker
Clemens Lange
(Universitaet Zuerich (CH))
Description
The CMS inner detector is the largest silicon tracker ever built. Located around the
center of CMS where the LHC particle beams are brought into collision, it consists of a
hybrid pixel detector with 66 million channels and a 200 m² silicon strip detector with
about 10 million read-out channels. The tracking detector provides high-resolution
measurements of charged particles passing through a 3.8 T magnetic field and is also
crucial for vertex reconstruction. The presentation briefly summarizes the operational
experience gained with this detector during the first three years of LHC operation (Run
1) including performance measurements. The focus lies on the work carried out during the
first long shutdown of LHC to prepare the detector for the high-radiation and
high-luminosity environment of Run 2. The most important tasks were the repair of the
detector and preparations for operating the detector at significantly lower temperature.
First experience with 2015 operation of the detector is also presented.
Author
Clemens Lange
(Universitaet Zuerich (CH))
