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Astrophysics > Instrumentation and Methods for Astrophysics

arXiv:1307.5905 (astro-ph)
[Submitted on 22 Jul 2013]

Title:Monte Carlo comparison of medium-size telescope designs for the Cherenkov Telescope Array

Authors:T. Jogler, M. D. Wood, J. Dumm, A. Bouvier (for the CTA Consortium)
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Abstract:The Cherenkov Telescope Array (CTA) is a future very high energy gamma-ray observatory. CTA will be comprised of small-,medium- and large-size telescopes covering an energy range from tens of GeV to hundreds of TeV and will surpass existing telescopes in sensitivity by an order of magnitude. The aim of our study is to find the optimal design for the medium-size telescopes (MSTs), which will determine the sensitivity in the key energy range between a few hundred GeV to about ten TeV. To study the effect of the telescope design parameters on the array performance, we simulated arrays of 61 MSTs with 120 m spacing and a variety of telescope configurations. We investigated the influence of the primary telescope characteristics including optical resolution, pixel size, and light collection area on the total array performance with a particular emphasis on telescope configurations with imaging performance similar to the proposed Davies-Cotton (DC) and Schwarzschild-Couder (SC) MST designs. We compare the performance of these telescope designs, especially the achieved gamma-ray angular resolution and differential point-source sensitivity. Finally we investigate the performance of different array sizes to demonstrate impacts of financial constraints on the number of telescopes.
Comments: In Proceedings of the 33rd International Cosmic Ray Conference (ICRC2013), Rio de Janeiro (Brazil). All CTA contributions at arXiv:1307.2232
Subjects: Instrumentation and Methods for Astrophysics (astro-ph.IM); High Energy Astrophysical Phenomena (astro-ph.HE)
Cite as: arXiv:1307.5905 [astro-ph.IM]
  (or arXiv:1307.5905v1 [astro-ph.IM] for this version)
  https://doi.org/10.48550/arXiv.1307.5905

Submission history

From: Tobias Jogler [view email]
[v1] Mon, 22 Jul 2013 22:43:37 UTC (51 KB)
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