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ESAF-Simulation of the EUSO-Balloon

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Abstract

The EUSO-Balloon is a balloon borne ultraviolet (UV) telescope, which is being developed as a pathfinder of the JEM-EUSO mission (Extreme Universe Space Observatory onboard the Japanese Experiment Module on the International Space Station (ISS), see this conference proceedings). Designed as a scaled version of JEM-EUSO, the EUSO-Balloon will serve as a technology demonstrator. From 2014 on, it is planned to conduct a number of missions, between a few and several tens of hours at an altitude of approx. 40 km. Besides proving the robustness of the JEM-EUSO technology it will perform UV background studies under many different ground conditions and potentially observe extended air showers (EAS) induced by ultra-high-energy cosmic rays (UHECR) of the order of 10^18 eV. The detector design consists of a system of Fresnel lenses focussing the incoming 300 - 400 nm UV fluorescence photons onto an array of multi-anode photomultipliers. Generated photoelectrons are then readout by the front end electronics, converted into digital data and saved to disc if a trigger is issued. The ESAF (EUSO Simulation and Analysis Framework) software package is designed to simulate space based observation of EAS, taking into account every physical process from EAS generation, progagation of light in atmosphere, detector response and eventually reconstruction. EUSO-Balloon specifications such as the optics and dedicated electronics components have been implemented in the code to study the expected instrument behavior and its ability to resolve the UHECR arrival direction. In this poster we describe ESAF simuations of the EUSO-Balloon. Furthermore, we present results concerning the expected performance in terms of spatial resolution and background studies.
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Dates and versions

in2p3-00847497 , version 1 (24-07-2013)

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  • HAL Id : in2p3-00847497 , version 1

Cite

T. Mernik, A. Guzman, A. Santangelo, K. Shinnozaki, N. Sakaki, et al.. ESAF-Simulation of the EUSO-Balloon. 33rd International Cosmic Ray Conference (ICRC2013), Jul 2013, Rio de Janeiro, Brazil. ⟨in2p3-00847497⟩
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