Jena 2013 – scientific programme
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EP: Fachverband Extraterrestrische Physik
EP 2: Astrophysik / ISWI
EP 2.5: Talk
Monday, February 25, 2013, 18:00–18:15, HS 9
Quasi-stable radiation belt in the slot region, measurements of MATROSHKA / DOSTEL — •Johannes Labrenz1, Sönke Burmeister1, Thomas Berger2, Rudolf Beaujean1, Bernd Heber1, and Günther Reitz2 — 1Christian 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 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 during the third mission phase (MTR-2B) inside the SM of the ISS. The 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.