Uniformity and stability of the CMS RPC detector at the LHC

Costantini, S.; Beernaert, K.; Cimmino, A.; Garcı́a, G.; Lellouch, J.; Marinov, A.; Ocampo, A.; Strobbe, N.; Thyssen, F.; Tytgat, M.; Verwilligen, P.; Yazgan, E.; Zaganidis, N.; Dimitrov, A.; Hadjiiska, R.; Litov, L.; Pavlov, B.; Petkov, P.; Aleksandrov, A.; Genchev, V.; Iaydjiev, P.; Rodozov, M.; Shopova, M.; Sultanov, G.; Ban, Y.; Cai, J.; Ge, Y.; Li, Q; Qian, S. J.; Xue, Zhen; Ávila, C.; Chaparro, Luıs F.; Gomez, J. Piedra; Moreno, B. Gomez; Oliveros, A. F. Osório; Sanabria, J. C.; Assran, Y.; Sharma, A.; Abbrescia, M.; Calabria, C.; Colaleo, A.; Loddo, F.; Maggi, M.; Pugliese, G.; Benussi, L.; Bianco, S.; Colafranceschi, S.; Piccolo, D.; Buontempo, S.; Carrillo, Camilo; Iorio, O. M.; Paolucci, P.; Berzano, U.; Gabusi, M.; Vitulo, P.; Kang, Min Ho; Lee, K S; Park, S K; Shin, S.; Choi, Y.; Goh, J.; Kim, M S; Seo, H.; Shoaib, M.

doi:10.1088/1748-0221/8/03/p03017

Cited by 10 publications

(12 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To optimize the performance at the single chamber level, data of a series of dedicated runs (called HV Scans) at eleven HV settings from 8.5 to 9.7 kV in 2011-2012 have been studied. The chamber efficiency was determined by extrapolating the muon tracks spotted in the nearby detectors (DTs and/or CSCs) and finding the RPC hits in a certain fiducial region [2]. The optimal operating voltage for each chamber has been determined using the standard procedure.…”

Section: The Calibration Of the Systemmentioning

confidence: 99%

The CMS RPC system - detector performance and upgrade

Kim¹

2014

Proceedings of the European Physical Society Conference on High Energy Physics — PoS(EPS-HEP 2013)

View full text Add to dashboard Cite

Section: The Calibration Of the Systemmentioning

confidence: 99%

The CMS RPC system - detector performance and upgrade

Kim¹

2014

Proceedings of the European Physical Society Conference on High Energy Physics — PoS(EPS-HEP 2013)

View full text Add to dashboard Cite

“…The HV Scans were made at eleven HV settings from 8.5 to 9.7 kV, and chamber efficiency was determined by extrapolating the muon tracks spotted in the nearby detectors (DTs and/or CSCs) and finding the RPC hits in a certain fiducial region [6].…”

Section: B Performance Optimizationmentioning

confidence: 99%

“…the HV where 95% of the asymptotic efficiency is reached. Then, the chambers are operated at 100 V (150 V) plus HV knee in the barrel (the endcaps), defined as a HV working (or operating) point [6]. Figure 4 shows that the applied calibration succeeded in keeping the average efficiency stable within ≈2-3% fluctuations by requiring the gas density to remain constant.…”

Section: B Performance Optimizationmentioning

confidence: 99%

See 1 more Smart Citation

Role of the RPC detector in the CMS muon system for tracking and trigger

Kim

2013

2013 IEEE Nuclear Science Symposium and Medical Imaging Conference (2013 NSS/MIC)

View full text Add to dashboard Cite

The Resistive Plate Chambers are used in CMS as dedicated muon trigger detector both in the barrel and in the two endcap regions. They also contribute to muon reconstruction and identification with Drift Tube in the barrel and Cathode Strip Chambers in the endcaps. About 3000 square meter of double gap RPCs have been produced and installed in the experiment since 2007. The performance study and operational experience after three years of successful data taking at LHC is presented. Preliminary estimate of efficiency improvement of muon identification by the upgrade for the next two years is also shown. Presented at IEEE-NSS-MIC-RTDS-2013 2013 IEEE Nuclear Science Symposium and Medical Imaging ConferenceRole of the RPC Detector in the CMS Muon System for Tracking and Trigger Min Suk Kim On behalf of the CMS CollaborationAbstract-The Resistive Plate Chambers are used in CMS as dedicated muon trigger detector both in the barrel and in the two endcap regions. They also contribute to muon reconstruction and identification with Drift Tube in the barrel and Cathode Strip Chambers in the endcaps. About 3000 square meter of double gap RPCs have been produced and installed in the experiment since 2007. The performance study and operational experience after three years of successful data taking at LHC is presented. Preliminary estimate of efficiency improvement of muon identification by the upgrade for the next two years is also shown.

show abstract

“…As illustrated in Fig. 1, the current CMS RPC system covering a pseudorapidity range of |η| < 1.6 comprises six trigger stations in the barrel and four trigger stations in the endcap sections of the CMS detector [6,7]. The fourth RPC trigger station in the endcap section (the zone in the upper-right solid line of Fig.…”

Section: Introductionmentioning

confidence: 99%

Radiation tests of real-sized prototype RPCs for the Phase-2 Upgrade of the CMS Muon System

et al. 2016

View full text Add to dashboard Cite

We report on a systematic study of double-gap and four-gap phenolic resistive plate chambers (RPCs) for the Phase-2 upgrade of the CMS muon system at high η. In the present study, we constructed real-sized double-gap and four-gap RPCs with gap thicknesses of 1.6 and 0.8 mm, respectively, with 2-mm-thick phenolic high-pressure-laminated (HPL) plates. We examined the prototype RPCs with cosmic rays and with 100-GeV muons provided by the SPS H4 beam line at CERN. To examine the rate capability of the prototype RPCs both at Korea University and at the CERN GIF++ facility, the chambers were irradiated with 137 Cs sources providing maximum gamma rates of about 1.5 kHz cm -2 . In contrast to the case of the four-gap RPCs, we found the relatively high threshold on the produced detector charge was conducive to effectively suppressing the rapid increase of strip cluster sizes of muon hits with high voltage, especially when measuring the narrow-pitch strips. The gamma-induced currents drawn in the four-gap RPC were about one-fourth of those drawn in the double-gap RPC. The rate capabilities of both RPC types, proven through the present testing using gamma-ray sources, far exceeded the maximum rate expected in the new high-η endcap RPCs planned for future phase-II runs of the Large Hadron Collider (LHC).-1 - Contents

show abstract

Uniformity and stability of the CMS RPC detector at the LHC

Cited by 10 publications

References 5 publications

The CMS RPC system - detector performance and upgrade

The CMS RPC system - detector performance and upgrade

Role of the RPC detector in the CMS muon system for tracking and trigger

Radiation tests of real-sized prototype RPCs for the Phase-2 Upgrade of the CMS Muon System

Contact Info

Product

Resources

About