Aligning the CMS muon chambers with the muon alignment system during an extended cosmic ray run
Аутори
Chatrchyan, S.Adzic, P.
Đorđević, Miloš

Jovanovic, D.
Krpic, D.
Maletic, D.
Puzovic, J.
Smiljkovic, N.
Milenović, Predrag

(ukupan broj autora: 2423)
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
The alignment system for the muon spectrometer of the CMS detector comprises three independent subsystems of optical and analog position sensors. It aligns muon chambers with respect to each other and to the central silicon tracker. System commissioning at full magnetic field began in 2008 during an extended cosmic ray run. The system succeeded in tracking muon detector movements of up to 18 mm and rotations of several milliradians under magnetic forces. Depending on coordinate and subsystem, the system achieved chamber alignment precisions of 140-350 mu m and 30-200 mu rad, close to the precision requirements of the experiment. Systematic errors on absolute positions are estimated to be 340-590 mu m based on comparisons with independent photogrammetry measurements.
Кључне речи:
Muon spectrometers / Large detector systems for particle and astroparticle physicsИзвор:
Journal of Instrumentation, 2010, 5Пројекти:
- FMSR (Austria), FNRS (Belgium), CNPq (Brazil), MES (Bulgaria), CERN, CAS (China), COLCIEN-CIAS (Colombia), MSES (Croatia), RPF (Cyprus), Academy of Sciences (Estonia), Academy of Finland, CEA (France), BMBF, Germany, GSRT (Greece), OTKA (Hungary), DAE (India), IPM (Iran), SFI (Ireland), INFN (Italy), NRF (Korea), LAS (Lithuania), CINVESTAV (Mexico), PAEC (Pakistan), SCSR (Poland), FCT (Portugal), JINR (Armenia), MST (Russia), MSTDS (Serbia), MICINN (Spain), Swiss Funding Agencies (Switzerland), NSC (Taipei), TUBITAK (Turkey), STFC (United Kingdom), DOE (USA), European Union, Leventis Foundation, A.P. Sloan Foundation, Alexander von Humboldt Foundation, FWO (Belgium), CAPES (Brazil), FAPERJ (Brazil), FAPESP (Brazil), MoST (China), NSFC (China), NICPB (Estonia), ME, HIP (Finland), CNRS/IN2P3 (France), DFG (Germany), HGF (Germany), NKTH (Hungary), DST (India), CONACYT (Mexico), SEP (Mexico), UASLP-FAI (Mexico), JINR (Belarus), JINR (Georgia), JINR (Ukraine), JINR (Uzbekistan), MAE (Russia), CPAN (Spain), TAEK (Turkey), NSF (USA)
DOI: 10.1088/1748-0221/5/03/T03019
ISSN: 1748-0221 (print)