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LIDAR treatment inside the ESAF simulation framework for the JEM-EUSO mission

par Toscano, Simona ;Valore, Laura;Neronov, Andrii;Guarino, F.
Référence 33rd International Cosmic Rays Conference, ICRC 2013(Code 135187: 2 July: Rio de Janeiro; Brazil), Proceedings of the 33rd International Cosmic Rays Conference, Sociedade Brasileira de Fisica, Bresil
Publication Publié, 2013-10

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Résumé :

JEM-EUSO is a next-generation fluorescence telescope which will detect Ultra High Energy Cosmic Rays (UHECR, cosmic rays with energies above 5 · 1019 eV) from the International Space Station (ISS), by using the whole Earth as a detector. Being in such a peculiar location, JEM-EUSO will orbit the Earth and it will experience all possible weather conditions. The JEM-EUSO telescope will detect fluorescence UV emission from Extensive Air Showers (EAS) produced by UHECR penetrating in the atmosphere. To achieve a correct reconstruction of UHECR energy and of the type of the primary cosmic ray particle, information about absorption and scattering properties of the atmosphere is required. A LIght Detection And Ranging (LIDAR) device is foreseen as a part of the Atmospheric Monitoring system for the JEM-EUSO mission. The goal of the LIDAR is to provide measurements of extinction and scattering properties of the atmosphere along the EAS development path and between the EAS and JEM-EUSO. In order to test the capabilities of the LIDAR a simulation of this device has been implemented inside the ESAF Simulation Framework used for the JEM-EUSO mission. In this contribution we will review the LIDAR simulation chain, focusing on the generation and propagation of photons in the atmosphere. First results from simulations will be shown for a laser beam propagating in different atmospheric conditions.