Speaker
Dr
Lalit Pant
(BARC, Mumbai)
Description
The work presented here describes the characterization of double gap, bakelite RPCs
for the end-cap region of the “Compact Muon Solenoid” experiment at LHC, which
were built, assembled and tested in India, before their dispatch to CERN in 2008.
These detectors consisted of eight of RE*/2 and two of RE*/3 type geometry for the
CMS. The RE*/2 detectors had gas-gaps made at KODEL, Korea and the two RE*/3
detectors had gas-gaps, procured much earlier, from GT, Italy. We discuss the
efficiency, leakage currents, strip profile and cluster size of these detectors as has
been evaluated with the cosmic hodoscope at ISR Lab., at CERN, where all the eight
RE*/2 RPCs qualified for the comic tests, thereby ascertaining the QA/QCs
procedures followed during assembly at RPC Lab., at Nuclear Physics Division,
BARC, Mumbai which is also geared up for the RPC upscope for CMS. Present
developments such as an open loop gas recovery-recirculation system would also be
discussed during the talk.
Primary author
Dr
Lalit Pant
(BARC, Mumbai)
