DocumentCode
2551979
Title
Radiation damage in the LHCb Vertex Locator
Author
Harrison, S.
Author_Institution
LHCb VELO Group, Univ. of Manchester, Manchester, UK
fYear
2012
fDate
Oct. 27 2012-Nov. 3 2012
Firstpage
1824
Lastpage
1827
Abstract
LHCb is a dedicated experiment to study New Physics in the decays of beauty and charm hadrons at the Large Hadron Collider (LHC) at CERN. The beauty and charm hadrons are identified through their flight distance in the Vertex Locator (VELO), and hence the detector is critical for both the trigger and offline physics analyses. Due to their close proximity to the LHC beam the VELO sensors are exposed to higher ftuences than those of any other LHC subdetector. These proceedings present the primary results from radiation damage studies performed from the start of LHC data taking until late 2012. They include the first observation of type-inversion at the LHC, the highest statistics measurement of the silicon effective band gap after irradiation, and the observation of a radiation-induced charge loss effect due to the presence of a second metal layer.
Keywords
position sensitive particle detectors; silicon radiation detectors; CERN; LHC beam; LHC subdetector; LHCb vertex locator; Large Hadron Collider; VELO sensors; beauty hadrons; charm hadrons; flight distance; metal layer; offline physics analyses; radiation damage; radiation-induced charge loss effect; silicon effective band gap; statistics measurement; trigger analyses;
fLanguage
English
Publisher
ieee
Conference_Titel
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2012 IEEE
Conference_Location
Anaheim, CA
ISSN
1082-3654
Print_ISBN
978-1-4673-2028-3
Type
conf
DOI
10.1109/NSSMIC.2012.6551425
Filename
6551425
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