Speaker
Dr
Anita Topkar
(Bhabha Atomic Research Centre (BARC))
Description
Abstract
A specific research and development program has been carried out in India to
develop the technology for 32-strip silicon detectors for application as a
preshower detector for CMS experiment at LHC, CERN. The detectors have a geometry
of 63mm x 63mm and these detectors incorporate 32 P+strips with width of 1.78 mm
with a pitch of 1.9 mm. The fabrication technology to produce silicon detectors
with very good uniformity over a large area of ~40cm2 , low leakage currents of the
order of 10nA/cm2 per strip and high breakdown voltage of > 500V has been
developed in India using a 4” silicon foundry. The 32-strip silicon detectors have
been fabricated using standard silicon technology . The production of detectors is
already underway to deliver 1000 detector modules and 90% production is completed.
A strict quality control procedure is being used for qualification of detectors
during the production. The performance of the silicon strip detectors produced for
the CMS preshower is presented. The present status of the detector technology is
discussed in view of exploring the feasibility for participation in building the
detectors for the future linear collider.
Author
Dr
Anita Topkar
(Bhabha Atomic Research Centre (BARC))
Co-authors
Ms
Bharti Aggarwal
(Bhabha Atomic Research Centre (BARC))
Mr
M D Ghodgaonkar
(Bhabha Atomic Research Centre (BARC))
Mr
Praveenkumar Suggesetti
(Bhabha Atomic Research Centre (BARC))
Dr
S K Kataria
(Bhabha Atomic Research Centre (BARC))
