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Verhandlungen
Verhandlungen
DPG

Stuttgart 2012 – wissenschaftliches Programm

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EP: Fachverband Extraterrestrische Physik

EP 7: Poster Erdnaher Weltraum

EP 7.6: Poster

Mittwoch, 14. März 2012, 16:30–19:00, Poster.IV

Quasi-stable radiation belt in the slot region observed by MATROSHKA — •Johannes Labrenz1, Sönke Burmeister1, Thomas Berger2, Rudolf Beaujean1, Bernd Heber1, and Günther Reitz21Christian Albrechts Universität zu Kiel — 2German Aerospace Center, DLR, Institute of Aerospace Medicine, Radiation Biology Department, Cologne

MATROSHKA (MTR) is an ESA experiment facility under the science and project lead of DLR Cologne. The radiation exposure inside a human phantom is measured by active and passive detectors. The DOSimetry TELescope (DOSTEL), built at CAU Kiel in cooperation with DLR Cologne, is a particle telescope consisting of two Si-semiconductor detectors. Count rates as well as energy deposition spectra are measured by this instrument. The MTR facility is on board the International Space Station (ISS) since Jan. 2004. The active instruments were operating during the first mission phase (MTR-1) where the phantom was mounted outside the Zvzeda module (Service Module SM) of the ISS from Feb. 2004 to Aug. 2005. In 2008 the active instruments were operating again (MTR-2B) inside the SM of the ISS. Those DOSTEL measurements showed the expected enhanced dose rates during transits through the inner radiation belt (SAA) over the South Atlantic and transits through the outer radiation belt at the highest magnetic latitudes. In Sept. and Oct. 2004, during the MTR-1 phase, an additional radiation belt in the so called slot region appeared. In this work the measurements of this quasi stable slot region belt will be presented and compared to results of other experiments.

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