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Measurement of the 60Fe(n,g)61Fe Reaction at the TRIGA Reactor and Future Possibilities at FRANZ

This seminar presentation discusses the measurement of the 60Fe(n,g)61Fe reaction at the TRIGA reactor in Mainz, highlighting its significance in astrophysics, particularly in understanding the production and destruction rates of important s-process isotopes like 60Fe. We explore recent advancements in neutron activation techniques and future experimental plans at the FRANZ facility. The work aims to provide insight into the cosmic abundances of 60Fe and its implications for astrophysical processes.

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Measurement of the 60Fe(n,g)61Fe Reaction at the TRIGA Reactor and Future Possibilities at FRANZ

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  1. Measurement of the 60Fe(n,g)61Fe reaction at the TRIGA reactor in Mainz and future possibilities at FRANZ 1Goethe-Universität Frankfurt, Max-von-Laue Straße 1, 60438 Frankfurt, GER, 2Forschungszentrum Karlsruhe, Postfach 3640, 76021 Karlsruhe, GER, 3Universität Wien, Doktor-Karl-Lueger-Ring 1, 1010 Wien, AUT T. Heftrich1, M. Mikorski1, C. Beinrucker1, F. Käppeler2, K. Landwehr1, C. Lederer3, R. Reifarth1, S. Schmidt1, K. Sonnabend1, and T. Thomas1 Tanja Heftrich February 07th , 2012 496. Wilhelm und Else Heraeus-Seminar

  2. Astrophysical Motivation • INTEGRAL measured 60Fe/26Al ratio along the galactic plane • deep-sea manganese crust 60Fe • 60Fe is an important s-process isotope • determine production and destruction rates R. Diehl Knie et al, PRL 93 (2004) 171103 Tanja Heftrich February 07th , 2012 496. Wilhelm und Else Heraeus-Seminar

  3. 60Fe(b-) : in progress, new measurements: 1.49 Myr / 2.62 Myr 59Fe(n,g) : extremely difficult 60Fe(n,g)61Fe : activation kT = 25 meV Rugel, Kutschera TRIGA 2010 60Fe(n,g)61Fe : activation kT = 25 keV 60Fe Karsruhe 2009 GSI 2010 60Fe(g,n) : coulomb dissociation 60Fe(n,g)61Fe : kT = 90 keV FRANZ soon Tanja Heftrich February 07th , 2012 496. Wilhelm und Else Heraeus-Seminar

  4. 60Fe(n,g)61Fe @ TRIGA • 60Fe sample was produced at the PSI in Villigen, Switzerland (ERAWAST I workshop) • irradiation with thermal neutrons to get the depletion of 60Fe atkT = 25meV Tanja Heftrich February 07th , 2012 496. Wilhelm und Else Heraeus-Seminar

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