An optical design of the telescope in the Wide Field of View Cherenkov/Fluorescence Telescope Array
LHAASO Collaboration
刊名ASTROPARTICLE PHYSICS
2015
卷号67页码:8-17
关键词Cherenkov Curvature radii Imaging quality Light spot Photon collection Spherical designs Telescope arrays Wide field of view
DOI10.1016/j.astropartphys.2015.01.006
文章类型Article
英文摘要Spherical design and Davies-cotton design, which can supply a wide Field of View (FOV) and have a single optical element structure, are the two candidate optics for Wide FOV Cherenkov/Fluorescence Telescope Array (WFCTA). To obtain a good imaging quality, we have done a detailed study to acquire optimal configurations for these two optics. In this paper, first, a proper curvature radius for the reflector, an optimized location for the camera, as well as a tolerance for the distortion of images for two designs have been presented. Furthermore, using such optimal configurations, the features of Cherenkov images initiated by proton and iron showers both with two optics have been investigated. Based on these results, it can be concluded that spherical design has the prior optical properties, such as a wider FOV of 16°, a higher and more homogeneous resolution for all incident directions within the 16° FOV and a lower light loss in the spots, as well as more signals collected in an Cherenkov image, relatively shorter arrival time difference for lights in a shower and brighter PMTs in the central part of a shower track. Thus it will be chosen as WFCTA optics. Finally, the optical properties of the two designs with 10° FOV have also been investigated. It should be mentioned that with such a smaller FOV, Davies-cotton optics is an effective design for it has a great imaging quality comparing with the setup of 16° FOV. © 2015 Elsevier B.V. All rights reserved.
类目[WOS]408 Structural Design ; 657 Space Physics ; 741.1 Light/Optics ; 819.1 Natural Fibers ; 921.6 Numerical Methods
收录类别EI
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228898
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
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LHAASO Collaboration. An optical design of the telescope in the Wide Field of View Cherenkov/Fluorescence Telescope Array[J]. ASTROPARTICLE PHYSICS,2015,67:8-17.
APA LHAASO Collaboration.(2015).An optical design of the telescope in the Wide Field of View Cherenkov/Fluorescence Telescope Array.ASTROPARTICLE PHYSICS,67,8-17.
MLA LHAASO Collaboration."An optical design of the telescope in the Wide Field of View Cherenkov/Fluorescence Telescope Array".ASTROPARTICLE PHYSICS 67(2015):8-17.
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