002646385 001__ 2646385
002646385 003__ SzGeCERN
002646385 005__ 20220810142138.0
002646385 0248_ $$aoai:cds.cern.ch:2646385$$pcerncds:FULLTEXT$$pcerncds:CERN:FULLTEXT$$pINIS$$pcerncds:CERN
002646385 0247_ $$2DOI$$9SISSA$$a10.22323/1.340.0909
002646385 037__ $$aCMS-CR-2018-258
002646385 035__ $$9Inspire$$a1749471
002646385 041__ $$aeng
002646385 100__ $$aLee, Yong [email protected]$$uSungkyunkwan U.
002646385 245__ $$aAging studies of the triple-GEM detectors for future upgrades of the CMS muon high rate region at the HL-LHC
002646385 269__ $$aGeneva$$bCERN$$c10 Oct 2018
002646385 260__ $$bSISSA$$c2019
002646385 300__ $$a2 p
002646385 520__ $$aThe high-luminosity LHC (HL-LHC) upgrade is setting a new challenge for particle detection technologies. In the CMS muon system based on gas detectors, the increased luminosity will yield a ten times higher particle background compared to the present LHC conditions. To cope with the high-rate environment and to maintain the actual performance, new Gas Electron Multiplier (GEM) detectors will be installed in the innermost region of the forward CMS muon spectrometer, $\mathrm{2 < \eta < 2.8}$ (ME0 project). The detailed knowledge of the detector performance in the presence of such a high background is crucial for an optimized design and efficient operation at the HL-LHC. A precise understanding of possible aging effects of detector materials and gases is of extreme importance. For this reason, aging tests of full sized triple-GEM detector operated with an $\mathrm{Ar/CO_2 \ (70/30)}$ gas mixture at an effective gas gain of $\mathrm{2 \times 10^4}$, are in course at GIF++, the CERN Gamma Irradiation Facility. One detector is irradiated with $\mathrm{662 \ keV}$ gamma-rays from a $\mathrm{14 \ TBq \ ^{137}Cs}$ source and, in parallel, a second similar detector with $\mathrm{22 \ keV}$ X-rays at the quality control lab. This contribution describes the performance of triple-GEM detectors during the irradiation test and reports on their state-of-the art.
002646385 540__ $$3publication$$aCC-BY-NC-ND-4.0$$bSISSA$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/
002646385 542__ $$3publication$$dThe Authors$$g2019
002646385 595__ $$aCERN EDS
002646385 65017 $$2SzGeCERN$$aDetectors and Experimental Techniques
002646385 6531_ $$9CMS$$aMuons
002646385 690C_ $$aINTNOTE
002646385 690C_ $$aCERN
002646385 690C_ $$aPUBLCMS
002646385 693__ $$aCERN LHC$$eCMS
002646385 700__ $$aFallavollita, Francesco$$iINSPIRE-00540100$$jCCID-770871$$mfrancesco.fallavollita@cern.ch$$uPavia U.$$uINFN, Pavia
002646385 710__ $$5PH
002646385 710__ $$gCMS Muon Group
002646385 773__ $$c909$$pPoS$$vICHEP2018$$wC18-07-04$$y2019
002646385 8564_ $$81447280$$s519370$$uhttps://cds.cern.ch/record/2646385/files/CR2018_258.pdf$$yCMS Notes
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002646385 916__ $$sn$$w201845
002646385 963__ $$aPUBLIC
002646385 960__ $$a13
002646385 962__ $$b2623872$$k909$$nseoul20180704
002646385 980__ $$aINTNOTECMSPUBL
002646385 980__ $$aConferencePaper
002646385 980__ $$aARTICLE