10 August 2016 Bokeh mirror alignment for Cherenkov telescopes
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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.
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S. A. Mueller, S. A. Mueller, J. Adam, J. Adam, M. L. Ahnen, M. L. Ahnen, D. Baack, D. Baack, M. Balbo, M. Balbo, M. Bergmann, M. Bergmann, A. Biland, A. Biland, M. Blank, M. Blank, T. Bretz, T. Bretz, K. A. Bruegge, K. A. Bruegge, J. Buss, J. Buss, A. Dmytriiev, A. Dmytriiev, D. Dorner, D. Dorner, S. Einecke, S. Einecke, C. Hempfling, C. Hempfling, D. Hildebrand, D. Hildebrand, G. Hughes, G. Hughes, L. Linhoff, L. Linhoff, K. Mannheim, K. Mannheim, D. Neise, D. Neise, A. Neronov, A. Neronov, M. Noethe, M. Noethe, A. Paravac, A. Paravac, F. Pauss, F. Pauss, W. Rhode, W. Rhode, A. Shukla, A. Shukla, F. Temme, F. Temme, J. Thaele, J. Thaele, R. Walter, R. Walter, "Bokeh mirror alignment for Cherenkov telescopes", Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99084O (10 August 2016); doi: 10.1117/12.2232561; https://doi.org/10.1117/12.2232561


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