Erlangen 2018 – wissenschaftliches Programm
MS 5.4: Vortrag
Mittwoch, 7. März 2018, 15:00–15:15, R 1.020
Search for Recent 60Fe Deposition in Antarctic Snow via AMS — •Dominik Koll1, Christoph Busser1, Thomas Faestermann1, Leticia Fimiani1, J. M. Gomez-Guzman1, Angelina Kinast1, Gunther Korschinek1, David Krieg1, Manuel Lebert1, Silke Merchel2, Johannes Sterba3, Jan Welch3, and Sepp Kipfstuhl4 — 1Physik Department, Technische Universität München, Germany — 2Helmholtz-Zentrum Dresden-Rossendorf, Germany — 3Atominstitut, Technische Universität Wien, Austria — 4Alfred-Wegener-Institut, Germany
60Fe with a half-life of 2.6 Myr  is produced in stellar environments and ejected into space mainly by core-collapse supernovae. Due to its long half-life, traces of 60Fe were deposited and incorporated on Earth and on the Moon and have been detected there [2,3,4,5].
Here, a new possible reservoir will be presented: Antarctic snow. This time, in contrast to former investigations, any signal detected would be recent material which might origin from the local interstellar cloud. 500 kg of Antarctic snow were chemically processed and are going to be analyzed by AMS in Munich at the 14 MV tandem. First results for 60Fe measurements will be presented as well as chemical extraction methods applied.
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