Please use this identifier to cite or link to this item:
http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/3589| Title: | Mechanical stability of the CMS strip tracker measured with a laser alignment system |
| Authors: | CMS Collaboration Sirunyan, A. M. CHAUHAN, S. DUBE, SOURABH HEGDE, V. KAPOOR, A. KOTHEKAR, K. PANDEY, S. RANE, A. SHARMA, SEEMA et al. Dept. of Physics |
| Keywords: | CMS tracker consists Silicon strip Carbon fibre composite Operation in the temperature Initial positions 2017 |
| Issue Date: | Apr-2017 |
| Publisher: | IOP Publishing |
| Citation: | Journal of Instrumentation, 12,P04023. |
| Abstract: | The CMS tracker consists of 206 m2 of silicon strip sensors assembled on carbon fibre composite structures and is designed for operation in the temperature range from −25 to +25°C. The mechanical stability of tracker components during physics operation was monitored with a few μm 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 30μm. In addition, temperature variations were found to cause displacements of tracker structures of about 2μm°C, which largely revert to their initial positions when the temperature is restored to its original value. |
| URI: | http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/3589 https://doi.org/10.1088/1748-0221/12/04/P04023 |
| ISSN: | 1748-0221 |
| Appears in Collections: | JOURNAL ARTICLES |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.