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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 19 — Jul. 1, 2000
  • pp: 3295–3299

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

Alberto Cordero-Dávila, Juan Manuel Nuñez-Alfonso, Jorge Castro-Ramos, and Maria Elizabeth Percino-Zacarias  »View Author Affiliations


Applied Optics, Vol. 39, Issue 19, pp. 3295-3299 (2000)
http://dx.doi.org/10.1364/AO.39.003295


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Abstract

Segmented mirrors will be used in the telescopes of the Pierre Auger Fluorescence detector. To align the segments, we have developed four methods in which (a) the image of the stop border, (b) the image of a screen with concentric circles, and (c) the Ronchi pattern are used. In addition to these, we have developed a new method, (d), in which 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.

© 2000 Optical Society of America

OCIS Codes
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
(220.1140) Optical design and fabrication : Alignment
(220.4840) Optical design and fabrication : Testing

History
Original Manuscript: March 8, 2000
Revised Manuscript: March 9, 2000
Published: July 1, 2000

Citation
Alberto Cordero-Dávila, Juan Manuel Nuñez-Alfonso, Jorge Castro-Ramos, and Maria Elizabeth Percino-Zacarias, "Optical alignment of segmented mirrors to the fluorescence detectors of the Pierre Auger Observatory," Appl. Opt. 39, 3295-3299 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-19-3295

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