Motions of CMS detector structures due to the magnetic field forces as observed by the Link alignment system during the test of the 4 T magnet solenoid

L. A. García-Moral, G. Gómez, F. J. González-Sánchez, C. Martínez-Rivero, F. Matorras, T. Rodrigo, P. Martínez, L. Scodellaro, I. Vila, A. L. Virto, M. Sobrón, J. Alberdi, P. Arce, J. M. Barcala, E. Calvo, A. Ferrando, M. I. Josa, A. Molinero, J. Navarrete, J. C. OllerC. Yuste, N. Béni, P. Raics, Zs Szabó, Z. Trócsnyi, B. Ujvári, Gy Zilizi, G. Christian, J. Imrek, J. Molnár, D. Novák, J. Pálinkás, G. Székely, Z. Szillási, G. L. Bencze, G. Vesztergombi, A. Calderón, M. Benettoni, F. Gasparini, F. Montecassiano, M. Rampazzo, M. Zago, A. Benvenuti

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Abstract

This document describes results obtained from the Link alignment system data recorded during the Compact Muon Solenoid (CMS) Magnet Test. A brief description of the system is followed by a discussion of the detected relative displacements (from micrometres to centimetres) between detector elements and rotations of detector structures (from microradians to milliradians). Observed displacements are studied as functions of the magnetic field intensity. In addition, the reconstructed positions of active element sensors are compared to their positions as measured by photogrammetry and the reconstructed motions due to the magnetic field strength are described.

Original languageEnglish
Pages (from-to)344-361
Number of pages18
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume606
Issue number3
DOIs
Publication statusPublished - Jul 21 2009

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Keywords

  • Alignment
  • CMS
  • Detectors

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

García-Moral, L. A., Gómez, G., González-Sánchez, F. J., Martínez-Rivero, C., Matorras, F., Rodrigo, T., Martínez, P., Scodellaro, L., Vila, I., Virto, A. L., Sobrón, M., Alberdi, J., Arce, P., Barcala, J. M., Calvo, E., Ferrando, A., Josa, M. I., Molinero, A., Navarrete, J., ... Benvenuti, A. (2009). Motions of CMS detector structures due to the magnetic field forces as observed by the Link alignment system during the test of the 4 T magnet solenoid. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 606(3), 344-361. https://doi.org/10.1016/j.nima.2009.03.252