Prof.
Manuel Lozano Fantoba
(CNM Instituto de Microelectronica de Barcelona)
10/11/2008, 16:20
In large systems, as ATLAS, the detectors are aligned using mechanical systems and laser beams. Another option, implemented in CMS, is to use the signal generated by the laser beam in the detector to measure its position. Unfortunately, standard detectors present a high light absorption, and therefore it is almost impossible to generate signal in many detector layers using one single laser...
