Performance of the New FlashCam-based Camera in the 28\,m Telescope of H.E.S.S

分类： 天文学 >> 天文学 提交时间： 2023-02-19

Baiyang Bi Miquel Barcelo Christian Bauer Faical Ait Benkhali Jacqueline Catalano Sebastian Diebold Christian Föhr Stefan Funk Gianluca Giavitto German Hermann Jim Hinton Ira Jung-Richardt Oleg Kalekin Ruben Kankanyan Thomas Kihm Fabian Leuschner Marc Pfeifer Gerd Pühlhofer Olaf Reimer Simon Sailer

摘要： In October 2019, the central 28 m telescope of the H.E.S.S. experiment has been upgraded with a new camera. The camera is based on the FlashCam design which has been developed in view of a possible future implementation in the Medium-Sized Telescopes of the Cherenkov Telescope Array (CTA), with emphasis on cost and performance optimization and on reliability. The fully digital design of the trigger and readout system makes it possible to operate the camera at high event rates and to precisely adjust and understand the trigger system. The novel design of the front-end electronics achieves a dynamic range of over 3,000 photoelectrons with only one electronics readout circuit per pixel. Here we report on the performance parameters of the camera obtained during the first year of operation in the field, including operational stability and optimization of calibration algorithms.

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