Monitoring of absolute mirror alignment at COMPASS RICH-1 detector

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Monitoring of absolute mirror alignment at COMPASS RICH-1 detector
 
Alexeev, M.; Birsa, R.; Bradamante, F.; Bressan, A.; Chiosso, M.; Ciliberti, P.; Dalla Torre, S.; Denisov, O.; Duic, V.; Ferrero, A.; Finger, M.; Finger, M.; Gayde, J. Ch; Giorgi, M.; Gobbo, B.; Levorato, S.; Maggiora, A.; Martin, A.; Menon, G.; Panzieri, D.; Pesaro, G.; Polak, J.; Rocco, E.; Sbrizzai, G.; Schiavon, P.; Slunecka, M.; Sozzi, F.; Steiger, L.; Sulc, M.; Takekawa, S.; Tessarotto, F.
(2014) Nuclear Instruments and Methods in Physics Research. Section A, volume 766, pp. 208 - 211
(Article)
Abstract
The gaseous COMPASS RICH-1 detector uses two spherical mirror surfaces, segmented into 116 individual mirrors, to focus the Cherenkov photons onto the detector plane. Any mirror misalignment directly affects the detector resolution. The on-line Continuous Line Alignment and Monitoring (CLAM) photogrammetry-based method has been implemented to measure the alignment of ... read more
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Keywords: Cherenkov radiation, Mirror alignment, Photogrammetry, RICH, Instrumentation, Nuclear and High Energy Physics
DOI: https://doi.org/10.1016/j.nima.2014.06.066
ISSN: 0168-9002
Publisher: Elsevier Science
Note: RICH2013 Proceedings of the Eighth International Workshop on Ring Imaging Cherenkov Detectors Shonan, Kanagawa, Japan, December 2-6, 2013
(Peer reviewed)
 
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