Title :
The Atlas liquid argon calorimeter at the CERN Large Hadron Collider: General performance and latest developments of the High Voltage system
Author_Institution :
State Univ. of New York at Stony Brook, Stony Brook, NY, USA
fDate :
Oct. 27 2013-Nov. 2 2013
Abstract :
The ATLAS experiment is designed to study the proton-proton collisions produced at the Large Hadron Collider (LHC) at CERN. Liquid argon sampling calorimeters are used for the identification and characteristics measurement of the electrons, photons and hadronic jets. Since the first collisions in 2010, the calorimeters operated almost optimally, playing a leading role in the discovery of the Higgs boson announced in July 2012. A special emphasis in this paper will be given on the latest developments of the high voltage power supply system. These efforts allowed to equip the calorimeters with innovative power supply modules able to temporarily sustain high current load without major voltage drop.
Keywords :
particle calorimetry; position sensitive particle detectors; Atlas liquid argon sampling calorimeter; CERN large hadron collider; Higgs boson; electron characteristics measurement; electron identification measurement; general performance; hadronic jet characteristics measurement; hadronic jet identification measurement; high current load; high voltage power supply system; high voltage system; major voltage drop; photon characteristics measurement; photon identification measurement; power supply modules; proton+proton collisions; Argon; Detectors; Electrodes; Electromagnetics; Large Hadron Collider; Liquids; Power supplies;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2013 IEEE
Conference_Location :
Seoul
Print_ISBN :
978-1-4799-0533-1
DOI :
10.1109/NSSMIC.2013.6829570
