Konopelko 2007 地面低能伽玛射线望远镜的设计

主要内容:
已有一些地面高能伽玛射线望远镜，大于100GeV，现在考虑设计10－100GeV的。原理也还是探测次级Cherenkov辐射。

人总是能想到办法的，以前知道伽玛射线穿不过大气层，所以要用卫星观测伽玛辐射。但是穿不过就意味着要和大气层作用，这种作用就会有次级辐射，通过观测这种次级辐射也可以反推原来的伽玛辐射的嘛。

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文章信息:
Design Study of a Low Energy IACT Array for Ground-Based Gamma-Ray Astronomy

Authors: A. Konopelko, J.P. Finley, G. Urbanski (Purdue University)

(Submitted on 28 Aug 2007)

Abstract: Recently, ground-based very high-energy (VHE) gamma-ray astronomy achieved a remarkable advancement in the development of the observational technique for the registration and study of gamma-ray emission above 100 GeV. Construction of telescopes of substantially larger sizes than the currently used 12 m class telescopes can drastically improve the sensitivity of ground-based detectors to gamma rays of energy from 10 GeV to 100 GeV. Based on Monte Carlo simulations we have studied the response of an array of three large area imaging atmospheric Cherenkov telescopes (IACT) as a prototype for a future large-scale low energy ground-based experiment. The sensitivity of a three-telescope array as a function of optical reflector size was investigated here in detail.
arXiv:0708.3865 [ps, pdf, other]