Optical alignment of segmented mirrors to the fluorescence detectors of the Pierre Auger observatory

Details Optical alignment of segmented mirrors to the fluorescence detectors of the Pierre Auger observatory Optical alignment of segmented mirrors to the fluorescence detectors of the Pierre Auger observatory

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..566..373c&link_type=abstract

OBSERVING ULTRAHIGH ENERGY COSMIC RAYS FROM SPACE AND EARTH: International Workshop. AIP Conference Proceedings, Volume 566, pp

Other

Neutrino, Muon, Pion, And Other Elementary Particle Detectors, Cosmic Ray Detectors, Optical Workshop Techniques

Scientific paper

The telescopes of the Pierre Auger Fluorescence detector will use a segmented mirror. To align the segments we have developed four methods, which use: a) the image of the stop border, b) the image of a screen with concentric circles and c) the Ronchi pattern. Adding to these, we have developed a new method d). Instead of the Ronchi ruling, we have used a circular grid. In this case we obtain a moiré pattern for each segment by means of which the experimental setup is simplified and the sensitivity of the alignment is improved. .

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