Bokeh mirror alignment for Cherenkov telescopes
/ Authors
S. Mueller, J. Adam, M. Ahnen, D. Baack, M. Balbo, M. Bergmann, A. Biland, M. Blank, T. Bretz, K. Bruegge
and 19 more authors
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
/ 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.
Journal: Astronomical Telescopes + Instrumentation
DOI: 10.1117/12.2232561