Speaker
Gian Mario Bilei
(INFN Perugia)
Description
With a total area of more than 200 square meters and about 15,000 silicon
modules, the Tracker of the CMS experiment at the Large Hadron Collider
will be the largest silicon strip detector ever built. Together with a Pixel
detection system the CMS Silicon Strip Tracker will determine the charged
particle momenta and will play a determinant role in lepton reconstruction
and heavy flavor quark tagging. The Silicon Strip Tracker is at present being
integrated and will be completed in spring 2007. In this paper, after a brief
overview of the of the CMS Tracking System (Pixel and Strips Systems) we
will describe the status of integration, the complex operations and tests that
we are carrying out for the final commissioning of the detector. In the
presentation results from the integration of the individual sub-detectors
(Inner, Outer and Endcap) will be shown. Test results of such large
structures will provide clear idea of the excellent system performance that
can be achieved after the Tracker is installed and operated in CMS. In
addition we will report on the recent CMS Magnet Test Cosmic Challenge
(MTCC). Besides the very important commissioning of the Magnet System,
this test has provided an ideal opportunity to test the global DAQ readout of
a CMS slice under operating conditions, to test installation, operations and
maintenance procedures. Approximately 25 million cosmic muon events
were collected, of which 10 million events were collected with a magnetic
field of up to 4 Tesla. Detailed Tracker performance, detector alignment and
tracking studies are now being performed and will be shown.
Author
Gian Mario Bilei
(INFN Perugia)
