Wuppertal 2015 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 13: Kosmische Strahlung I

T 13.7: Vortrag

Montag, 9. März 2015, 15:45–16:00, K.11.24 (HS 33)

The JEM-EUSO prototype telescope TA-EUSOFrancesca Bisconti1, •Johannes Blümer1,2, Andreas Haungs1, Thomas Huber2, Donghwa Kang1, and Michael Karus1 for the JEM-EUSO collaboration — 1Institut für Kernphysik (IKP), Karlsruher Institut für Technologie (KIT) — 2Institut für Experimentelle Kernphysik (IEKP), KIT

JEM-EUSO (Extreme Universe Space Observatory onboard Japanese Experiment Module) is an Ultra High-Energy Cosmic Rays (UHECRs) detector under development, sensitive to the fluorescence emission of extensive air showers in the Earth’s atmosphere, looking down from the International Space Station. In this way, it will provide a large field of view and therefore about tenfold better statistics for UHECRs than with ground-based observatories.

To validate the design of such a space based telescope, one of the prototypes under development is EUSO-TA, at the Telescope Array site (Utah). This prototype will give information about the calibration of the Fresnel lense system and the Photo Detector Module (PDM), both basic parts of JEM-EUSO. One PDM currently consists of 36 Multi-Anode Photomultiplier Tubes from Hamamatsu.

Silicon Photo-Multipliers (SiPMs) are under consideration for the realization of a PDM, benefiting from the practical advantages as excellent photon counting capability and time resolution, high gain, low operating voltage, robustness and compactness. The response of this sensor type is investigated by simulations and in the laboratory.

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