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Proceedings Paper

Bokeh mirror alignment for Cherenkov telescopes
Author(s): S. A. Mueller; J. Adam; M. L. Ahnen; D. Baack; M. Balbo; M. Bergmann; A. Biland; M. Blank; T. Bretz; K. A. Bruegge; J. Buss; A. Dmytriiev; D. Dorner; S. Einecke; C. Hempfling; D. Hildebrand; G. Hughes; L. Linhoff; K. Mannheim; D. Neise; A. Neronov; M. Noethe; A. Paravac; F. Pauss; W. Rhode; A. Shukla; F. Temme; J. Thaele; R. Walter
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Paper Abstract

Segmented imaging reflectors are a great choice for Imaging Atmospheric Cherenkov Telescopes (IACTs). However, the alignment of the individual mirror facets is challenging. We align a segmented reflector by observing and optimizing its Bokeh function. Bokeh alignment can already be done with very little resources and little preparation time. Further, Bokeh alignment can be done anytime, even during the day. We present a first usage of Bokeh alignment on FACT, a 4m IACT on Canary Island La Palma, Spain and further a first Bokeh alignment test on the CTA MST IACT prototype in Brelin Adlershof.

Paper Details

Date Published: 10 August 2016
PDF: 6 pages
Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99084O (10 August 2016); doi: 10.1117/12.2232561
Show Author Affiliations
S. A. Mueller, ETH Zürich (Switzerland)
J. Adam, TU Dortmund (Germany)
M. L. Ahnen, ETH Zürich (Switzerland)
D. Baack, TU Dortmund (Germany)
M. Balbo, Univ. de Genève (Switzerland)
M. Bergmann, Univ. Würzburg (Germany)
A. Biland, ETH Zürich (Switzerland)
M. Blank, Univ. Würzburg (Germany)
T. Bretz, ETH Zürich (Switzerland)
K. A. Bruegge, TU Dortmund (Germany)
J. Buss, TU Dortmund (Germany)
A. Dmytriiev, Univ. de Genève (Switzerland)
D. Dorner, Univ. Würzburg (Germany)
S. Einecke, TU Dortmund (Germany)
C. Hempfling, Univ. Würzburg (Germany)
D. Hildebrand, ETH Zürich (Switzerland)
G. Hughes, ETH Zürich (Switzerland)
L. Linhoff, TU Dortmund (Germany)
K. Mannheim, Univ. Würzberg (Germany)
D. Neise, ETH Zürich (Switzerland)
A. Neronov, Univ. de Genève (Switzerland)
M. Noethe, TU Dortmund (Germany)
A. Paravac, Univ. Würzburg (Germany)
F. Pauss, ETH Zürich (Switzerland)
W. Rhode, TU Dortmund (Germany)
A. Shukla, ETH Zürich (Switzerland)
F. Temme, TU Dortmund (Germany)
J. Thaele, TU Dortmund (Germany)
R. Walter, Univ. de Genève (Switzerland)

Published in SPIE Proceedings Vol. 9908:
Ground-based and Airborne Instrumentation for Astronomy VI
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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