Performance of the Camera of the MAGIC II Telescope
D. Borla Tridon, F. Goebel, D. Fink, W. Haberer, J. Hose, C.C. Hsu, T., Jogler, R. Mirzoyan, R. Orito, O. Reimann, P. Sawallisch, J. Schlammer, T., Schweizer, B. Steinke, M. Teshima (for the MAGIC Collaboration)

TL;DR
This paper reports on the performance characteristics of the camera of the second MAGIC telescope, highlighting its design, sensor technology, and operational capabilities in stereo mode.
Contribution
It presents the design, sensor specifications, and operational performance of the MAGIC II telescope's camera, a key component for enhanced stereo observations.
Findings
Camera has 1039 pixels with 0.1-degree diameter
Uses high quantum efficiency PMTs with low gain for moonlight observations
System improves sensitivity and lowers energy threshold in stereo mode
Abstract
MAGIC comprises two 17m diameter IACTs to be operated in stereo mode. Currently we are commissioning the second telescope, MAGIC II. The camera of the second telescope has been equipped with 1039 pixels of 0.1-degree diameter. Always seven pixels are grouped in a hexagonal configuration to form a cluster. This modular design allows easier control and maintenance of the camera. The pixel sensors are high quantum efficiency photomultiplier tubes (PMTs) from Hamamatsu (superbialkali type, QE ~ 32% at the peak wavelength) that we operate at rather low gain of 30 k. This allows us to also perform extended observations under moderate moonlight. The system of two MAGIC telescopes will at least double the sensitivity compared to MAGIC I and also will allow us to lower the energy threshold.Here we will report the performances of the Camera of the second MAGIC telescope.
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Taxonomy
TopicsAdaptive optics and wavefront sensing · Astronomy and Astrophysical Research · Stellar, planetary, and galactic studies
