基于 NECTAr 的 H.E.S.S. 12 米望远镜切伦科夫相机升级
天体物理仪器与方法
2020-02-26 v1
摘要
高能立体系统(H.E.S.S.)是目前在运行的三台成像大气切伦科夫望远镜(IACT)阵列之一。它由四台 12 米望远镜和一台 28 米望远镜组成,对约 30 GeV 至 100 TeV 能量范围内的伽马射线敏感。12 米望远镜的相机最近进行了大幅升级,目的是提升其性能与鲁棒性。此次升级更换了除光电倍增管(PMT)外的所有相机部件。这意味着要为触发、读出、供电、冷却和机械系统开发新硬件,并为相机控制与数据采集开发新软件。相机中采用了若干新技术:读出基于为新一代码 IACT 开发的新型 NECTAr 数字化芯片构建;相机电子学通过以太网使用 FPGA 与嵌入式 ARM 计算机的组合进行完全控制与读出;软件使用了 Apache Thrift、ZMQ 和 Protocol buffers 等现代库。本文详细描述了升级后相机的设计与性能。
引用
@article{arxiv.2001.04510,
title = {A NECTAr-based upgrade for the Cherenkov cameras of the H.E.S.S. 12-meter telescopes},
author = {Terry Ashton and Michael Backes and Arnim Balzer and David Berge and Julien Bolmont and Simon Bonnefoy and Francois Brun and Thomas Chaminade and Eric Delagnes and Gerard Fontaine and Matthias Füßling and Gianluca Giavitto and Berrie Giebels and Jean-Francois Glicenstein and Tobias Gräber and Jim Hinton and Albert Jahnke and Stefan Klepser and Marko Kossatz and Axel Kretzschmann and Valentin Lefranc and Holger Leich and Jean-Philippe Lenain and Hartmut Lüdecke and Iryna Lypova and Pascal Manigot and Vincent Marandon and Emmanuel Moulin and Thomas Murach and Mathieu de Naurois and Patrick Nayman and Stefan Ohm and Marek Penno and Duncan Ross and David Salek and Markus Schade and Thomas Schwab and Kleopas Shiningayamwe and Christian Stegmann and Constantin Steppa and Jean-Paul Tavernet and Julian Thornhill and Francois Toussnel and Pascal Vincent},
journal= {arXiv preprint arXiv:2001.04510},
year = {2020}
}
备注
35 pages, 14 figures, accepted for publication in "Astroparticle physics"