MPX Detectors as LHC Luminosity Monitor
- NázevTitle
- MPX Detectors as LHC Luminosity MonitorMPX Detectors as LHC Luminosity Monitor
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- A. Sopczak, B. Ali, N. Asbah, B. Bergmann, K. Bekhouche, D. Caforio, M. Campbell, H. Heijne, C. Leroy, A. Lipniacka, M. Nessi, S. Pospíšil, F. Seifert, J. Šolc, P. Soueid, M. Suk, D. Tureček, Z. Vykydal
- DOIDOI
- 10.1109/TNS.2015.2496316
- Časopis / citaceJournal / citation
- IEEE Transactions on Nuclear Science. 2015, 62(6), 3225-3241. ISSN 0018-9499.
- RokYear
- 2015
- JazykLanguage
- eng
- WoSWoS
- 000372013500017
- ScopusScopus
- 2-s2.0-84961859396
- RIVRIV
- RIV/68407700:21340/15:00302448!RIV17-MSM-21340___
- ProjektProject
- Mezinárodní experiment ATLAS-CERNInternational Experiment ATLAS-CERN; Spolupráce ČR s CERNCollaboration of the Czech Republic with CERN; Van de Graaff - urychlovač iontů HV2500 jako laditelný zdroj neutronů v rámci české a evropské velké infrastrukturyAccelerator of ions HV2500 as tuneable neutron source in frame of Czech and European Large Infrastructure; Mezinárodní experiment ATLAS-CERNInternational experiment ATLAS-CERN
AbstraktAbstract
A network of 16 Medipix-2 (MPX) silicon pixel devices was installed in the ATLAS detector cavern at CERN. It was designed to measure the composition and spectral characteristics of the radiation field in the ATLAS experiment and its surroundings. This study demonstrates that the MPX network can also be used as a self-sufficient luminosity monitoring system. The MPX detectors collect data independently of the ATLAS data-recording chain, and thus they provide independent measurements of the bunch-integrated ATLAS/LHC luminosity. In particular, the MPX detectors located close enough to the primary interaction point are used to perform van der Meer calibration scans with high precision. Results from the luminosity monitoring are presented for 2012 data taken at √s = 8 TeV proton-proton collisions. The characteristics of the LHC luminosity reduction rate are studied and the effects of beam-beam (burn-off) and beam-gas (single bunch) interactions are evaluated. The systematic variations observed in the MPX luminosity measurements are below 0.3% for one minute intervals.
A network of 16 Medipix-2 (MPX) silicon pixel devices was installed in the ATLAS detector cavern at CERN. It was designed to measure the composition and spectral characteristics of the radiation field in the ATLAS experiment and its surroundings. This study demonstrates that the MPX network can also be used as a self-sufficient luminosity monitoring system. The MPX detectors collect data independently of the ATLAS data-recording chain, and thus they provide independent measurements of the bunch-integrated ATLAS/LHC luminosity. In particular, the MPX detectors located close enough to the primary interaction point are used to perform van der Meer calibration scans with high precision. Results from the luminosity monitoring are presented for 2012 data taken at √s = 8 TeV proton-proton collisions. The characteristics of the LHC luminosity reduction rate are studied and the effects of beam-beam (burn-off) and beam-gas (single bunch) interactions are evaluated. The systematic variations observed in the MPX luminosity measurements are below 0.3% for one minute intervals.