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arXiv 2401.04460astro-ph.HEastro-ph.IM
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如何从地面探测伽马射线:探测概念导论

How to detect gamma-rays from ground: an introduction to the detection concepts

Manel Errando, Takayuki Saito

AI总结:

本文介绍了能量 >0.1 TeV 伽马射线地基间接探测的原理,阐述了电磁大气簇射特性及宇宙线背景排斥机制,并系统梳理了三大类探测技术及其他实验方法。

摘要:

利用地基天文台对伽马射线进行间接探测,是目前在能量 >0.1 TeV 下表征伽马射线天空最灵敏的实验方法。地基探测伽马射线依赖于伽马射线在地球大气中引发的电磁簇射。本章将回顾电磁大气簇射的特性,以及其与宇宙线簇射的差异,这些差异使得排斥宇宙线背景成为可能。我们将介绍为地基探测伽马射线而开发的实验技术。这些技术分为三大类:大气簇射粒子探测器、切伦科夫阵列采样和成像大气切伦科夫望远镜。此外还讨论了混合概念及其他实验方法。

英文摘要:

Indirect detection of gamma rays with ground-based observatories is currently the most sensitive experimental approach to characterize the gamma-ray sky at energies $>0.1$\,TeV. Ground-based detection of gamma-rays relies on the electromagnetic showers that gamma rays initiate in the Earth's atmosphere. In this chapter we will review the properties of electromagnetic air showers as well as the differences with respect to cosmic-ray showers that enable the rejection of the cosmic ray background. The experimental techniques that have been developed for ground-based detection of gamma rays will be introduced. These fall onto three main categories: air shower particle detectors, sampling Cherenkov arrays, and imaging atmospheric Cherenkov telescopes. Hybrid concepts as well as other experimental approaches are also discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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