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
Link To Document :
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