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arXiv 1307.3452astro-ph.IM
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切伦科夫望远镜阵的中心Laser设施

A Central Laser Facility for the Cherenkov Telescope Array

Markus Gaug, Carla Aramo, Marco Cilmo, Federico Di Pierro, Aurelio Tonachini, Piero Vallania

摘要:

中央激光设施是一个经常用于天体粒子实验的系统,基于荧光或切伦科夫光探测器阵列。该仪器基于位于距阵列一定距离处的激光源,在垂直方向上发射快速光脉冲,目的是校准阵列和/或测量大气传输。考虑到未来的切伦科夫望远镜阵列(CTA),如果满足某些设计要求,类似的设备可以提供整个装置的相对校准,即每个单独的望远镜相对于阵列的其余部分,以及绝对校准,精度优于10%。此外,可以在几天到几年的时间尺度上对每个望远镜的灵敏度进行精确监测。在中心激光设施的校准运行期间,所有探测器将指向给定高度上的激光束的同一部分。模拟了CTA中心激光设施的可能配置(改变激光能量、指向高度和与望远镜的距离

英文摘要:

A Central Laser Facility is a system often used in astroparticle experiments based on arrays of fluorescence or Cherenkov light detectors. The instrument is based on a laser source positioned at a certain distance from the array, emitting fast light pulses in the vertical direction with the aim of calibrating the array and/or measuring the atmospheric transmission. In view of the future Cherenkov Telescope Array (CTA), a similar device could provide a calibration of the whole installation, both relative, i.e. each individual telescope with respect to the rest of the array, and absolute, with a precision better than 10%, if certain design requirements are met. Additionally, a precise monitoring of the sensitivity of each telescope can be made on time-scales of days to years. During calibration runs of the central laser facility, all detectors will be pointed towards the same portion of the laser beam at a given altitude. Simulations of the possible configurations of a Central Laser Facility for CTA (varying laser energy, pointing height and distance from the telescopes) have been performed

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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