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Jena 2013 – scientific programme

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EP: Fachverband Extraterrestrische Physik

EP 4: Poster Session

EP 4.31: Poster

Tuesday, February 26, 2013, 11:15–12:45, Poster OG

Radiation Measurement on a Stratospheric Balloon — •Thomas Möller1, Thomas Berger2, Sönke Burmeister1, Bent Ehresmann1, Bernd Heber1, Johannes Labrenz1, Lauri Panitzsch1, and Robert F. Wimmer-schweingruber11IEAP, Christian-Albrechts-University Kiel, Kiel, Germany — 2German Aerospace Center (DLR), Cologne, Germany

The Earth is permanently exposed to energetic particle radiation from cosmic rays. This energetic particle radiation yields, together with its secondary particles produced in the Earth's atmosphere, a natural radiation field inside the atmosphere. The radiation exposure is dependent on altitude and geomagnetic latitude. In the future, it is planned to use supersonic aircraft, with operation altitudes between 20 and 25 km which is significantly higher than common aircraft altitudes. At these altitudes the radiation level is higher and reaches a maximum due to production of secondary particles. Therefore it is important to know which kind of radiation level will be expected in these altitudes. For this investigation a particle telescope consisting of four segmented silicon semiconductor detectors was developed. Due to the arrangement of the detectors, it is possible to separate neutral and charged particles. Therefore the dose rates induced by charged and neutral particles can be determined seperately. The Flight Radiation Environment Detector (FRED) conducted measurements onboard a stratospheric balloon in altitudes up to 25 km as part of the BEXUS programme. The results of the measurements will be presented.

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