Zobrazeno 1 - 10
of 156
pro vyhledávání: '"Gunther Korschinek"'
Autor:
Gunther Korschinek, Thomas Faestermann
Publikováno v:
The European Physical Journal A. 59
In this article we try to summarize all information, gathered in the last three decades, on short-lived (order of Myr) radionuclides found in the Solar System with interstellar origin, most probably due to stellar processes like supernovae. The most
Autor:
Sarah R. N. McIntyre, Dominik Koll, Dorothea Schumann, M.B. Froehlich, Georg Rugel, Anton Wallner, Silke Merchel, Ingo Leya, Stefan Pavetich, Niko Kivel, Thomas Faestermann, J.-C. David, Thomas Smith, Gunther Korschinek
Publikováno v:
Leya, Ingo; David, Jean-Christophe; Faestermann, Thomas; Froehlich, Michaela; Kivel, Niko; Koll, Dominik; Korschinek, Gunther; McIntyre, Sarah; Merchel, Silke; Pavetich, Stefan; Rugel, Georg; Schumann, Dorothea; Smith, Thomas; Wallner, Anton (2020). 53 Mn and 60 Fe in iron meteorites—New data, model calculations. Meteoritics & planetary science, 55(4), pp. 818-831. Wiley 10.1111/maps.13466
We measured specific activities of the long‐lived cosmogenic radionuclides ⁶⁰Fe in 28 iron meteorites and ⁵³Mn in 41 iron meteorites. Accelerator mass spectrometry was applied at the 14 MV Heavy Ion Accelerator Facility at ANU Canberra for a
Autor:
Dominik Koll, Thomas Faestermann, Gunther Korschinek, Ingo Leya, Silke Merchel, Anton Wallner
Publikováno v:
Nuclei in the Cosmos, 22.09.2021, Chengdu, China: EPJ
Koll, Dominik; Faestermann, Thomas; Korschinek, Gunther; Leya, Ingo; Merchel, Silke; Wallner, Anton (2022). The Dyadic Radionuclide System 60 Fe / 53 Mn to Distinguish Interstellar from Interplanetary 60 Fe. EPJ web of conferences, 260, p. 11022. EDP Sciences 10.1051/epjconf/202226011022
Koll, Dominik; Faestermann, Thomas; Korschinek, Gunther; Leya, Ingo; Merchel, Silke; Wallner, Anton (2022). The Dyadic Radionuclide System 60 Fe / 53 Mn to Distinguish Interstellar from Interplanetary 60 Fe. EPJ web of conferences, 260, p. 11022. EDP Sciences 10.1051/epjconf/202226011022
The discovery of live 60Fe in a deep-sea crust with proposed interstellar origin followed by evidence for elevated interplanetary 3He in the same crust raised the question on how to unambiguously identify the true production site of the identified 60
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::287ddd26e2817c908d8c7f16a12ec610
Autor:
Horst Geckeis, Thorsten Schäfer, Karin Hain, Markus Plaschke, Francesca Quinto, Gunther Korschinek, Stephanie Kraft, Dominik Koll, Thomas Faestermann, Christoph Busser, Peter Ludwig
Publikováno v:
Analytical Chemistry. 91:4585-4591
In the frame of studies on the safe disposal of nuclear waste, there is a great interest for understanding the migration behavior of 99Tc. 99Tc originating from nuclear energy production and global fallout shows environmental levels down to 107 atoms
Autor:
Thomas Faestermann, Francesca Quinto, Peter Ludwig, Dominik Koll, Christoph Busser, J.M. Gómez-Guzmán, David Krieg, Manuel Lebert, Angelina Kinast, Gunther Korschinek, Karin Hain
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 438:180-183
The AMS setup at the Maier-Leibnitz-Laboratory (MLL) in Garching features a 14 MV tandem accelerator and two dedicated beam lines for high-sensitivity measurements of isotopes in all mass ranges. Especially in the medium mass range (70 A 120), AMS se
Autor:
Gunther Korschinek, Thomas Faestermann
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 438:148-155
The experiments searching in solar system bodies for freshly produced radionuclides from outside the solar system are reviewed, with a special focus on accelerator mass spectrometry. A surplus of 60Fe has been found at eight locations in terrestrial
Autor:
Dominik Koll, Thorsten Schäfer, Horst Geckeis, Gunther Korschinek, Stephanie Kraft, Thomas Faestermann, Georg Rugel, Johanna Pitters, Ingo Blechschmidt, Karin Hain, Francesca Quinto, Markus Plaschke, Peter Steier
Publikováno v:
Goldschmidt2021 abstracts.
Autor:
T. Faestermann, M. Poutivtsev, Klaus Knie, Georg Rugel, Anton Wallner, A. Arazi, Gunther Korschinek
Publikováno v:
Physical Review Letters. 125
For the time period from 1.5 to 4 Myr before the present we found in deep ocean ferromanganese crusts a ^{53}Mn excess concentration in terms of ^{53}Mn/Mn of about 4×10^{-14} over that expected for cosmogenic production. We conclude that this ^{53}
Autor:
Boyana Deneva, Karin Hain, Dominik Koll, Peter Ludwig, J.M. Gómez-Guzmán, Victoria Sergeyeva, Thomas Faestermann, Nicolas Thiollay, L. Fimiani, Gunther Korschinek
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 423:42-48
Two different isobar separation techniques were tested for the detection of the long-lived fission product 93Zr ( T 1 / 2 = 1.64 · 106 a) using Accelerator Mass Spectrometry (AMS), i.e. a passive absorber and a gas-filled magnet, respectively. Both
Autor:
Kenji Nanba, Brett L. Rosenberg, Mayumi Hori, Alexander Brandl, Joseph E. Ball, Katsumi Shozugawa, Thomas E. Johnson, Georg Steinhauser, Gunther Korschinek
Publikováno v:
Applied Geochemistry. 85:201-208
In June 2013 and July 2014, soil samples were collected from unremediated locations within Fukushima prefecture, with special focus on the Fukushima exclusion zone. The soil samples were analyzed for radiocesium by gamma spectroscopy, and then 90Sr b