Mechanical stability of the CMS strip tracker measured with a laser alignment system
AuthorsSirunyan, A. M.
CMS Collaboration (ukupan broj autora: 2316)
MetadataShow full item record
The CMS tracker consists of 206m(2) of silicon strip sensors assembled on carbon fibre composite structures and is designed for operation in the temperature range from -25 to + 25 degrees C. The mechanical stability of tracker components during physics operation was monitored with a few mu m resolution using a dedicated laser alignment system as well as particle tracks from cosmic rays and hadron-hadron collisions. During the LHC operational period of 2011-2013 at stable temperatures, the components of the tracker were observed to experience relative movements of less than 30 mu m. In addition, temperature variations were found to cause displacements of tracker structures of about 2 mu m/degrees C, which largely revert to their initial positions when the temperature is restored to its original value.
Keywords:Detector alignment and calibration methods (lasers, sources, particle-beams) / Large detector systems for particle and astroparticle physics / Particle tracking detectors / Particle tracking detectors (Solid-state detectors)
Source:Journal of Instrumentation, 2017, 12
- Austrian Federal Ministry of Science, Research and Economy, Belgian Fonds de la Recherche Scientifique, Austrian Science Fund, Fonds voor Wetenschappelijk Onderzoek, Brazilian Funding Agency (CNPq), Brazilian Funding Agency (CAPES), Brazilian Funding Agency (FAPERJ), Brazilian Funding Agency (FAPESP), Bulgarian Ministry of Education and Science, CERN, Chinese Academy of Sciences, Ministry of Science and Technology, National Natural Science Foundation of China, Colombian Funding Agency (COLCIENCIAS), Croatian Ministry of Science, Education and Sport, Croatian Science Foundation, Research Promotion Foundation, Cyprus, Secretariat for Higher Education, Science, Technology and Innovation, Ecuador, Ministry of Education and Research, Estonian Research Council [IUT23-4, IUT23-6], European Regional Development Fund, Estonia, Academy of Finland, Finnish Ministry of Education and Culture, Helsinki Institute of Physics, Institut National de Physique Nucleaire et de Physique des Particules / CNRS, Commissariat a l Energie Atomique et aux Energies Alternatives / CEA, France, Bundesministerium fur Bildung und Forschung, Germany, Deutsche Forschungsgemeinschaft, Germany, Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany, General Secretariat for Research and Technology, Greece, National Scientific Research Foundation, Hungary, National Innovation Office, Hungary, Department of Atomic Energy, India, Department of Science and Technology, India, Institute for Studies in Theoretical Physics and Mathematics, Iran, Science Foundation, Ireland, Istituto Nazionale di Fisica Nucleare, Italy, Ministry of Science, ICT and Future Planning, Republic of Korea, National Research Foundation (NRF), Republic of Korea, Lithuanian Academy of Sciences, Ministry of Education, and University of Malaya (Malaysia), Mexican Funding Agency (BUAP), Mexican Funding Agency (CINVESTAV), Mexican Funding Agency (CONACYT), Mexican Funding Agency (LNS), Mexican Funding Agency (SEP), Mexican Funding Agency (UASLP-FAI), Ministry of Business, Innovation and Employment, New Zealand, Pakistan Atomic Energy Commission, Ministry of Science and Higher Education, Poland, National Science Centre, Poland, Fundacao para a Ciencia e a Tecnologia, Portugal, JINR, Dubna, Ministry of Education and Science of the Russian Federation, Federal Agency of Atomic Energy of the Russian Federation, Russian Academy of Sciences, Russian Foundation for Basic Research, Russian Competitiveness Program of NRNU MEPhI, Ministry of Education, Science and Technological Development of Serbia, Secretaria de Estado de Investigacion, Desarrollo e Innovacion and Programa Consolider-Ingenio, Spain, Swiss Funding Agency (ETH Board), Swiss Funding Agency (ETH Zurich), Swiss Funding Agency (PSI), Swiss Funding Agency (SNF), Swiss Funding Agency (UniZH), Swiss Funding Agency (Canton Zurich), Swiss Funding Agency (SER), Ministry of Science and Technology, Taipei, Thailand Center of Excellence in Physics, Institute for the Promotion of Teaching Science and Technology of Thailand, Special Task Force for Activating Research, National Science and Technology Development Agency of Thailand, Scientific and Technical Research Council of Turkey, Turkish Atomic Energy Authority, National Academy of Sciences of Ukraine, State Fund for Fundamental Researches, Ukraine, Science and Technology Facilities Council, U.K, US Department of Energy, US National Science Foundation, Marie-Curie programme, European Research Council, EPLANET (European Union), Leventis Foundation, A.P. Sloan Foundation, Alexander von Humboldt Foundation, Belgian Federal Science Policy Office, Fonds pour la Formation a la Recherche dans lIndustrie et dans lAgriculture (FRIA-Belgium), Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium), Ministry of Education, Youth and Sports (MEYS) of the Czech Republic, Council of Science and Industrial Research, India, HOMING PLUS programme of the Foundation for Polish Science, European Union, Regional Development Fund, Mobility Plus programme of the Ministry of Science and Higher Education, National Science Center (Poland) [Harmonia 2014/14/M/ST2/00428, Opus 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, 2015/19/B/ST2/02861, Sonata-bis 2012/07/E/ST2/01406], Thalis and Aristeia programmes - EU-ESF, Greek NSRF, National Priorities Research Program by Qatar National Research Fund, Programa Clarin-COFUND del Principado de Asturias, Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University, Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand), Welch Foundation [C-1845]
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