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Título:
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Calibration of the logarithmic-periodic dipole antenna (LPDA) radio stations at the Pierre Auger Observatory using an octocopter
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Autores:
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Arqueros Martínez, Fernando ;
Aab, A. ;
Abreu, P. ;
Aglietta, M. ;
Al Samarai, I. ;
Albuquerque, I.F.M. ;
Allekotte, I. ;
Almela, A. ;
Castillo, J. Alvarez ;
Alvarez-Muiniz, J. ;
otros, ...
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Tipo de documento:
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texto impreso
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Editorial:
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IOP publishing ltd, 2017-10
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Electricidad
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Materia = Ciencias: Física: Electrónica
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Materia = Ciencias: Física: Física nuclear
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Tipo = Artículo
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Resumen:
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An in-situ calibration of a logarithmic periodic dipole antenna with a frequency coverage of 30 MHz to 80 MHz is performed. Such antennas are part of a radio station system used for detection of cosmic ray induced air showers at the Engineering Radio Array of the Pierre Auger Observatory, the so-called Auger Engineering Radio Array (AERA). The directional and frequency characteristics of the broadband antenna are investigated using a remotely piloted aircraft carrying a small transmitting antenna. The antenna sensitivity is described by the vector effective length relating the measured voltage with the electric-field components perpendicular to the incoming signal direction. The horizontal and meridional components are determined with an overall uncertainty of 7.4(-0.3)(+0.9)%and 10.3(-1.7)(+2.8)% respectively. The measurement is used to correct a simulated response of the frequency and directional response of the antenna. In addition, the influence of the ground conductivity and permittivity on the antenna response is simulated. Both have a negligible influence given the ground conditions measured at the detector site. The overall uncertainties of the vector effective length components result in an uncertainty of 8.8(-1.3)(+2.1)% in the square root of the energy fluence for incoming signal directions with zenith angles smaller than 60 degrees.
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En línea:
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https://eprints.ucm.es/id/eprint/46132/1/Arqueros121preprint.pdf
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