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The Optical Layout Of The HEGRA Cherenkov Telescopes (1998)

Akhperjanian, A. ; Kankanian, R. ; Sahakian, V. ; [et al.]

Springer

Experimental astronomy 8 (1998), S. 135-152

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ISSN: 1572-9508

Keywords: Optical layout ; Cherenkov telescope ; Very high energy gamma ray astronomy

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract The raytracing technique was used to derive a suitable design for the HEGRA system of Cherenkov telescopes, which is at present commissioned at La Palma. The reflectors with a diameter of ∼ 3.9 m consist of 30 spherical mirrors with focal lengths in the range of 4.88 – 4.94 m. It is shown that 93% of the photons from the Cherenkov light emitted by an extended air shower are contained in the camera pixels, 0.25° in diameter, for the full field of view of ϑ = ± 2.5°. The optical performance of the HEGRA design is compared to other layouts.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1023/A:1007915512981

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