Performance of the upgraded H.E.S.S. cameras
S. Bonnefoy, T. Ashton, M. Backes, A. Balzer, D. Berge, F. Brun, T., Chaminade, E. Delagnes, G. Fontaine, M. F\"u{\ss}ling, G. Giavitto, B., Giebels, J.F. Glicenstein, T. Gr\"aber, J.A. Hinton, A. Jahnke, S. Klepser,, M. Kossatz, A. Kretzschmann, V. Lefranc, H. Leich
TL;DR
This paper reports on the upgrade, testing, calibration, and performance evaluation of the new H.E.S.S. I telescopes' cameras, demonstrating improvements in reliability and overall performance based on recent data.
Contribution
It provides a comprehensive overview of the camera upgrade process, testing procedures, calibration methods, and performance results for the H.E.S.S. I telescopes.
Findings
Reduced system failure rate
Lower dead time
Enhanced overall performance
Abstract
The 14 years old cameras of the H.E.S.S. 12-m telescopes have been upgraded in 2015/2016, with the goals of reducing the system failure rate, reducing the dead time and improving the overall performance of the array. This conference contribution describes the various tests that were carried out on the cameras and their sub-components both in the lab and on site. It also gives an overview of the commissioning and calibration procedures adopted during and after the installation, including e.g. flat-fielding and trigger threshold scans. Finally, it reports in detail about the overall performance of the four new H.E.S.S. I cameras, using very recent data.
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