Flasher and muon-based calibration of the GCT telescopes proposed for the Cherenkov Telescope Array
Flasher and muon-based calibration of the GCT telescopes proposed for the Cherenkov Telescope Array
复制标题
为切伦科夫望远镜阵列提议的 GCT 望远镜的闪光和基于 μ 介子的校准
DOI：
10.22323/1.236.0934
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
R. White
中科院分区：
文献类型：
--
作者：
A. Brown;T. Armstrong;P. Chadwick;M. Daniel;R. White
GCT是为切伦科夫望远镜阵列提出的双镜小型望远镜原型。GCT相机的校准主要是通过基于LED的闪光器单元实现的，该闪光器单元能够在大动态范围内产生400 nm光的FWHM脉冲，从0.1到1000个光电子。闪光器单元位于相机焦平面的四个角上，通过副镜的反射来照亮相机。这些闪光器单元是适应允许几个校准方案来完成：相机平场，线性测量（达到和过去的饱和度），并从两个单一的pe测量和在各种高照明水平的光子统计增益估计。在这些程序中，GCT闪光灯的性能进行了描述，连同正在进行的模拟工作，以量化使用μ子环作为端到端的校准GCT的光吞吐量的效率。
The GCT is a dual-mirror Small-Sized-Telescope prototype proposed for the Cherenkov Telescope Array. Calibration of the GCT's camera is primarily achieved with LED-based flasher units capable of producing $\sim4$ ns FWHM pulses of 400 nm light across a large dynamic range, from 0.1 up to 1000 photoelectrons. The flasher units are housed in the four corners of the camera's focal plane and illuminate it via reflection from the secondary mirror. These flasher units are adaptable to allow several calibration scenarios to be accomplished: camera flat-fielding, linearity measurements (up to and past saturation), and gain estimates from both single pe measurements and from the photon statistics at various high illumination levels. In these proceedings, the performance of the GCT flashers is described, together with ongoing simulation work to quantify the efficiency of using muon rings as an end-to-end calibration for the optical throughput of the GCT.
切伦科夫望远镜阵列 GCT 望远镜的蒙特卡罗研究
DOI：
10.48550/arxiv.1508.06088
发表时间：
2015
期刊：
--
影响因子：
--
作者：
Armstrong T
通讯作者：
Armstrong T