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          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents



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ID: 543225.0, MPI für Physik / MPI für Physik
Geomagnetic Field effects on the Imaging AIr Shower Cherenkov Technique
Authors:Commichau, S. C.; Biland, A.; Kranich, D.; de los Reyes, R.; Moralejo, A.; Sobczynska, D.
Date of Publication (YYYY-MM-DD):2008
Title of Journal:Proc. 30th Int. Cosmic Ray Conf.Vol.3 (OG Part 2)
Journal Abbrev.:Proc. 30th Int. Cosmic Ray Conf.Vol.3 (OG part 2)
Start Page:1357
End Page:1360
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:Imaging Air Cherenkov Telescopes (IACTs) detect the Cherenkov light flashes of Extended Air Showers (EAS) triggered by very high energy (VHE) gamma-rays impinging on the Earth's atmosphere. Due to the overwhelming background from hadron induced EAS, the discrimination of the rare gamma-like events is rather difficult, in particular at energies below 100 GeV. The influence of the Geomagnetic Field (GF) on the EAS development can further complicate this discrimination and, in addition, also systematically affect the gamma efficiency and energy resolution of an IACT. Here we present the results from dedicated Monte Carlo (MC) simulations for the MAGIC telescope site. Additionally we show that measurements of sub-TeV gamma-rays from the Crab nebula are affected even for a low GF strength of less than 33 micro Tesla.
Classification / Thesaurus:MAGIC
Comment of the Author/Creator:Contribution to the 30th ICRC, Merida Mexico, July 2007 on behalf of the MAGIC Collaboration Changes: corrected typos, changed content (figure 1)
External Publication Status:published
Document Type:Conference-Paper
Version Comment:Automatic journal name synchronization
Communicated by:N.N.
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2008-233
URL:http://www.slac.stanford.edu/spires/find/hep/www?r...
URL:http://arXiv.org/abs/arxiv:0709.1251
URL:http://publications.mppmu.mpg.de/?action=search&mp...
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