001609045 001__ 1609045
001609045 005__ 20170524112715.0
001609045 0247_ $$2DOI$$a10.1088/1748-0221/8/03/C03020
001609045 0248_ $$aoai:cds.cern.ch:1609045$$pcerncds:FULLTEXT$$pcerncds:CERN:FULLTEXT$$pcerncds:CERN
001609045 035__ $$9Inspire$$a1228756
001609045 041__ $$aeng
001609045 100__ $$aBialas, W$$uCERN$$uCERN
001609045 245__ $$aMitigation of anomalous APD signals in the CMS ECAL
001609045 260__ $$c2013
001609045 520__ $$aWe describe the observation and mitigation of anomalous, large signals, observed in the barrel part of the CMS Electromagnetic Calorimeter during proton collisions at LHC. Laboratory and beam tests, as well as simulations, have been used to understand their origin. They are ascribed to direct energy deposition by particles in the avalanche photodiodes used for light readout. A reprogramming of the front-end electronics has allowed a majority of these anomalous signals to be identified and rejected at the first (hardware) trigger level with minimum impact on physics performance. Further rejection is performed in the high-level software trigger and offline analyses.
001609045 540__ $$3Publication$$aCC-BY-3.0
001609045 65017 $$2SzGeCERN$$aDetectors and Experimental Techniques
001609045 693__ $$aCERN LHC$$eCMS
001609045 690C_ $$aCERN
001609045 690C_ $$aARTICLE
001609045 700__ $$aPetyt, D A$$uRutherford
001609045 773__ $$cC03020$$pJINST$$v8$$y2013
001609045 8564_ $$s630583$$uhttps://cds.cern.ch/record/1609045/files/1748-0221_8_03_C03020.pdf$$yIOP Open Access article
001609045 916__ $$sn$$w201341$$ya2013
001609045 960__ $$a13
001609045 962__ $$b1459551$$kC03020$$noxford20120917
001609045 980__ $$aARTICLE
001609045 980__ $$aConferencePaper