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Design of light concentrators for Cherenkov telescope observatories
Joseph Fourier University, France.
Joseph Fourier University, France.
Joseph Fourier University, France.
Ecole Polytechnique, France.
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2013 (English)In: Nonimaging Optics: Efficient Design for Illumination and Solar Concentration X / [ed] Roland Winston, Jeffrey Gordon, 2013, article id 883405Conference paper, Published paper (Refereed)
Resource type
Text
Abstract [en]

The Cherenkov Telescope Array (CTA) will be the largest cosmic gamma ray detector ever built in the world. It will be installed at two different sites in the North and South hemispheres and should be operational for about 30 years. In order to cover the desired energy range, the CTA is composed of typically 50-100 collecting telescopes of various sizes (from 6 to 24-m diameters). Most of them are equipped with a focal plane camera consisting of 1500 to 2000 Photomultipliers (PM) equipped with light concentrating optics, whose double function is to maximize the amount of Cherenkov light detected by the photo-sensors, and to block any stray light originating from the terrestrial environment. Two different optical solutions have been designed, respectively based on a Compound Parabolic Concentrator (CPC), and on a purely dioptric concentrating lens. In this communication are described the technical specifications, optical designs and performance of the different solutions envisioned for all these light concentrators. The current status of their prototyping activities is also given.

Place, publisher, year, edition, pages
2013. article id 883405
Series
Proceedings of SPIE, ISSN 0277-786X ; 8834
Keywords [en]
Observatories, Atmospheric Cherenkov telescopes, Compound parabolic concentrators, Lenses, Cameras, Optical design, Optics, Photodetectors, Photomultipliers, Prototyping
National Category
Astronomy, Astrophysics and Cosmology
Research subject
Physics, Astroparticle Physics
Identifiers
URN: urn:nbn:se:lnu:diva-50109DOI: 10.1117/12.2024049ISI: 000326700300004ISBN: 978-0-8194-9684-3 (print)OAI: oai:DiVA.org:lnu-50109DiVA, id: diva2:908342
Conference
Conference on Nonimaging Optics - Efficient Design for Illumination and Solar Concentration X, AUG 25-26, 2013, San Diego, CA
Available from: 2016-03-02 Created: 2016-03-02 Last updated: 2016-04-06Bibliographically approved

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Punch, Michael

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • text
  • asciidoc
  • rtf