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Title: Improving the performance of the single-dish Cherenkov telescope MAGIC through the use of signal timing
Author: Aliu, E.
Bosch i Ramon, Valentí
Cortina Blanco, Juan
Errando, M.
Firpo, R.
Font, L.
García López, R. J.
Herrero, Artemio
Martinez, Manuel
Mazin, D.
Miranda, J. M.
Nieto, D.
Paredes i Poy, Josep Maria
Puchades, N.
Ribó Gomis, Marc
Tescaro, Diego
Zabalza de Torres, Víctor
Zandanel, F.
Zanin, Roberta
Zapatero, J.
Keywords: Astronomia de raigs X
Telescopis espacials
Processament digital d'imatges
Física nuclear
X-ray astronomy
Space telescopes
Digital image processing
Nuclear physics
Issue Date: 2009
Publisher: Elsevier B.V.
Abstract: The Cherenkov light flashes produced by Extensive Air Showers are very short in time. A high bandwidth and fast digitizing readout, therefore, can minimize the influence of the background from the light of the night sky, and improve the performance in Cherenkov telescopes. The time structure of the Cherenkov image can further be used in single-dish Cherenkov telescopes as an additional parameter to reduce the background from unwanted hadronic showers. A description of an analysis method which makes use of the time information and the subsequent improvement on the performance of the MAGIC telescope (especially after the upgrade with an ultra fast 2 GSamples/s digitization system in February 2007) will be presented. The use of timing information in the analysis of the new MAGIC data reduces the background by a factor two, which in turn results in an enhancement of about a factor 1.4 of the flux sensitivity to point-like sources, as tested on observations of the Crab Nebula.
Note: Versió postprint del document publicat a:
It is part of: Astroparticle Physics, 2009, vol. 30, p. 293-305
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ISSN: 0927-6505
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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