| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9844976 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2005 | 5 Pages |
Abstract
A method is proposed for the angular alignment of RICH mirrors and for its monitoring, in particular for the COMPASS RICH-1 mirror system. Observing (by means of four cameras) apparent discontinuities in the images of continuous linear objects reflected by the mirrors surface, a relative misalignment of adjacent mirrors can be deduced and then corrected. The method can attain a sensitivity of at least 0.1Â mrad, and can also be applied on-line to keep under control the stability of the mirrors during data taking.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
S. Costa, S. Dalla Torre, D. Faso, J-Ch. Gayde, A. Latina, F. Tessarotto,