Conception and design of a control and monitoring system for the mirror alignment of the CBM RICH detector

• DOI: 10.1016/j.nima.2017.02.033
• Publication Date: 2017-02-15T02:02:22Z
• Authors: J. Adamczewski-Musch; P. Akishin; K.-H. Becker; S. Belogurov; J. Bendarouach; N. Boldyreva; C. Deveaux; V. Dobyrn; M. Dürr; J. Eschke; J. Förtsch; J. Heep; C. Höhne; K.-H. Kampert; L. Kochenda; J. Kopfer; P. Kravtsov; I. Kres; S. Lebedev; E. Lebedeva; E. Leonova; S. Linev; T. Mahmoud; J. Michel; N. Miftakhov; W. Niebur; E. Ovcharenko; V. Patel; C. Pauly; D. Pfeifer; S. Querchfeld; J. Rautenberg; S. Reinecke; Y. Riabov; E. Roshchin; V. Samsonov; V. Schetinin; O. Tarasenkova; M. Traxler; C. Ugur; E. Vznuzdaev; M. Vznuzdaev

Abstract The Compressed Baryonic Matter (CBM) experiment at the future Facility for Anti-proton and Ion Research (FAIR) will investigate the phase diagram of strongly interacting matter at high net-baryon density and moderate temperature in A+A collisions. One of the key detectors of CBM to explore this physics program is a Ring Imaging CHerenkov (RICH) detector for electron identification. For a high performance of the RICH detector precise mirror alignment is essential. A three-step correction cycle has been developed, which will be discussed: First a qualitative, fast check of the mirror positions, second a quantitative determination of possible misalignments and third a software correction routine, allowing a proper functioning of the RICH under misalignment conditions.