In-situ absolute calibration of electric-field amplitude measurements with the LPDA radio detector stations of the Pierre Auger Observatory

Abstract

With the Auger Engineering Radio Array (AERA) located at the Pierre Auger Observatory, radio emission of extensive air showers is observed. To exploit the physics potential of AERA, electric-field amplitude measurements with the radio detector stations need to be well-calibrated on an absolute level. A convenient tool for far-field calibration campaigns is a flying drone. Here we make use of an octocopter to place a calibrated source at freely chosen positions above the radio detector array. Special emphasis is put on the reconstruction of the octocopter position and its accuracy during the flights. The antenna response pattern of the radio detector stations was measured in a recent calibration campaign. Results of these measurements are presented and compared to simulations. It is found that measurements and simulations are in good agreement.

To be published in the Proceedings of the ARENA2016 conference, Groningen, The Netherlands

References in corpus (7)

• The Pierre Auger Cosmic Ray Observatory
• Antennas for the Detection of Radio Emission Pulses from Cosmic-Ray induced Air Showers at the Pierre Auger Observatory
• Energy Estimation of Cosmic Rays with the Engineering Radio Array of the Pierre Auger Observatory
• Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy
• Measurement of cosmic-ray air showers with the Tunka Radio Extension (Tunka-Rex)
• Calibrating the absolute amplitude scale for air showers measured at LOFAR
• Improved absolute calibration of LOPES measurements and its impact on the comparison with REAS 3.11 and CoREAS simulations