Production of Long-lived Radionuclides (10)Be, (14)C, (53)Mn, (55)Fe, (59)Ni and (202g)Pb in a Fusion Environment

Autor(en)

Anton Wallner, Kathrin Buczak, Claudia Lederer, Herbert Vonach, Thomas Faestermann, Gunther Korschinek, Michail Poutivtsev, Georg Rugel, Axel Klix, K. Seidel, A J M Plompen, Valentina Semkova

Abstrakt

In a fusion reactor and also in future advanced reactor types, long-lived activation products may lead to significant long-term waste disposals and radiation damage. Many of these production cross sections are not well-known, making it difficult to calculate concentration limits. Some prominent long-lived activation products comprise (10)Be, (14)C, and (26)Al; in the medium-mass range the radionuclides (53)Mn, (55,69)Fe, (59,63)Ni; and for heavier isotopes (202m)Pb, (210m)Bi. Since a few years the technique of accelerator mass spectrometry (AMS) has been applied at the Vienna Environmental Research Accelerator (VERA) facility for the detection of long-lived radionuclides for such studies. In this respect, samples were irradiated with quasi-monoenergetic neutrons at TU Dresden's 14-MeV neutron generator and the van de Graaff accelerator at IRMM. After the activations the samples were prepared for isotope ratio measurements via ANIS. Production of long-lived (53)Mn and (59)Ni was measured via AMS utilizing the 14-MV tandem of the Maier-Leibnitz- laboratory, TU Munich. Radionuclides (10)Be, (14)C, (26)Al, (55)Fe, (210m)Bi, and (262g)Pb are measured at the VERA facility.

Organisation(en)

Isotopenphysik

Externe Organisation(en)

Technische Universität München, Helmholtz-Zentrum Dresden-Rossendorf, Technische Universität Dresden, European Commission Joint Research Centre, Bulgarian Academy of Sciences (BAS)

Journal

Journal of the Korean Physical Society

Band

59

Seiten

1378-1381

Anzahl der Seiten

4

ISSN

0374-4884

DOI

https://doi.org/10.3938/jkps.59.1378

Publikationsdatum

2011

Peer-reviewed

Ja

ÖFOS 2012

103014 Kernphysik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/a067ddf3-e9e9-452e-a038-33a6cbb4426c