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EUSO Atmospheric Monitoring from Space

EUSO Atmospheric Monitoring from Space. M.Teshima on behalf of the EUSO collaboration MPI f ü r Physik, M ünchen (Werner-Heisenberg-Institut). Large Distance and Large F.O.V.  Large Aperture ~6x10 5 km 2 sr Good Cosmic Ray detector 3000 times sensitive to C.R. bursts

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EUSO Atmospheric Monitoring from Space

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  1. EUSOAtmospheric Monitoring from Space M.Teshima on behalf of the EUSO collaboration MPI für Physik, München (Werner-Heisenberg-Institut)

  2. Large Distance and Large F.O.V.  Large Aperture ~6x105 km2 sr Good Cosmic Ray detector 3000 times sensitive to C.R. bursts ~2000 Giga-ton atmosphere Good neutrino detector All Sky coverage North and south sky covered uniformly. ISS orbit: ~50°inclination. Complementary to the observation from the ground Different energy scale Different systematic errors Shower Geometry is well defined Constant distance from detector EUSO Concept Attenuation correction is minimum!!

  3. Atmospheric monitoring in EUSO • IR ~10μm CCD camera (256x256), UV CCD Camera • IR: Cloud monitor (clould looks colder than the ground temperature) • UV; Detection of lightening and other background, for example, air plane flash • Ground Light Source; Complimentary to Onboard lidar • Ground based LIDAR system, 10-20 stations • Flashers, Hamamatsu L6604 • 10 ground stations + NASA research aircraft P-3B • 500-1000 flashes/station can be used for monitoring • Onboard LIDAR system • Power and mass budget • Effectiveness on the analysis • Current Baseline design • one color 1064nm LIDAR system, 50mJ/100Hz, 140kg, 300W • Blind LIDAR for EUSO • Information • top of thick cloud altitude • Thin cloud transmission at 1000nm

  4. Flasher and the intensityIntegrated transmission can be measured Hamamatsu L6604 ~1J/shot

  5. Flasher Image on EUSO FS ~30Hz flash rate 0.05 deg / flash Total ~1000 flashes EUSO ~16km/s EUSO FOV

  6. Define beam intensity in each laser path by G.B.L. Transmissions between space and various altitude Simulate shower track Check reconstruction quality End to end experimental calibration 10stations  ~1/day 50mJ Nd: YAG Ground LIDAR

  7. Lidar Image on EUSO FS 100Hz shot rate 0.01 deg / shot Total ~3000 shots EUSO ~16km/s Good simulation for Cherenkov + fluorescence EUSO FOV

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