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首页> 外文会议>Nonimaging optics: efficient design for illumination and solar concentration XIV >Testing light concentrators prototypes for the Cherenkov Telescope Array
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Testing light concentrators prototypes for the Cherenkov Telescope Array

机译：测试切伦科夫望远镜阵列的聚光器原型

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摘要

With more than 30 Medium-Size Telescopes (MST) located in both North and South hemispheres, the Cherenkov Telescope Array (CTA) shall be the largest cosmic gamma ray detector ever built. Each MST focal plane consists in an array of some 1800 photomultipliers equipped with their own light concentrating optics in order to maximizing the amount of Cherenkov radiation collected by the telescope and to block stray light originating from ground environment. Within the CTA Consortium, the Institut de Planetologie et d'Astrophysique de Grenoble (IPAG) is in charge of designing, subcontracting the realization to industry, and testing the MST light concentrators. Two different optical solutions were pre-selected, respectively based on CPCs (Compound Parabolic Concentrators, or Winston cones) and non-imaging concentrating lenses. Prototypes were manufactured by different industrial companies and tested in our laboratory on a test bench specifically built for the project. After shortly describing both optical designs, this communication is essentially focused at experimental results. Each type of concentrator has been submitted to extensive performance measurements, including radiometric efficiency at different wavelengths, rejection curves, and cut-off angles. The final selected concentrator is the CPC, although non-imaging lenses exhibit interesting properties in terms of radiometric performance.
机译：在北半球和南半球都有30多个中型望远镜（MST），切伦科夫望远镜阵列（CTA）将成为有史以来最大的宇宙伽马射线探测器。每个MST焦平面都是由约1800个光电倍增管组成的阵列，这些光电倍增管配备有它们自己的聚光光学器件，以最大程度地利用望远镜收集的Cherenkov辐射量并阻挡源自地面环境的杂散光。在CTA联盟内部，格勒诺布尔行星研究与天体研究所（IPAG）负责设计，将实现转包给工业并测试MST聚光器。分别基于CPC（复合抛物面聚光器或Winston锥）和非成像聚光镜预先选择了两种不同的光学解决方案。原型由不同的工业公司生产，并在我们的实验室中为该项目专门建造的测试台上进行了测试。在简短地介绍了两种光学设计之后，这种交流基本上集中在实验结果上。每种类型的集中器都已进行了广泛的性能测量，包括不同波长下的辐射效率，截留曲线和截止角。最终选择的集中器是CPC，尽管非成像透镜在辐射性能方面表现出令人感兴趣的特性。

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  • 会议地点 San Diego(US)
  • 作者

    Francois Henault; Pierre-Olivier Petrucci; Laurent Jocou; Brahim Arezki; Yves Magnard; Bruno Khelifi; Pascal Manigot; Jean-Francois Olive; Pierre Jean; Michael Punch;

  • 作者单位

    Institut de Planetologie et d'Astrophysique de Grenoble Universite Grenoble-Alpes, Centre National de la Recherche Scientifique B.P. 53, 38041 Grenoble-France;

    Institut de Planetologie et d'Astrophysique de Grenoble Universite Grenoble-Alpes, Centre National de la Recherche Scientifique B.P. 53, 38041 Grenoble-France;

    Institut de Planetologie et d'Astrophysique de Grenoble Universite Grenoble-Alpes, Centre National de la Recherche Scientifique B.P. 53, 38041 Grenoble-France;

    Institut de Planetologie et d'Astrophysique de Grenoble Universite Grenoble-Alpes, Centre National de la Recherche Scientifique B.P. 53, 38041 Grenoble-France;

    Institut de Planetologie et d'Astrophysique de Grenoble Universite Grenoble-Alpes, Centre National de la Recherche Scientifique B.P. 53, 38041 Grenoble-France;

    Laboratoire Leprince-Ringuet, Ecole Polytechnique, 91128 Palaiseau - France;

    Laboratoire Leprince-Ringuet, Ecole Polytechnique, 91128 Palaiseau - France;

    Institut de Recherche en Astrophysique et Planetologie, 31028 Toulouse- France;

    Institut de Recherche en Astrophysique et Planetologie, 31028 Toulouse- France;

    Universite Paris 7 Denis Diderot, 75205 Paris - France for the CTA Consortium;

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  • 关键词

    Light concentrator; CPC; Winston cone; Cherenkov Telescope Array;

    机译：聚光器；每次点击费用；温斯顿锥;切伦科夫望远镜阵列;

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