Ti-44, Al-26 and Mn-53 samples for nuclear astrophysics: the needs, the possibilities and the sources

Author(s)

Rugard Dressler, Marin Ayranov, Daniel Bemmerer, Maruta Bunka, Y. Dai, Claudia Lederer, J. Fallis, Alex St. J. Murphy, M Pignatari, Dorothea Schumann, Thierry Stora, Tanja Stowasser, Friedrich-Karl Thielemann, Ph. J. Woods

Abstract

Exploration of the physics involved in the production of cosmogenic radionuclides requires experiments using the same rare, radioactive nuclei in sufficient quantities. For this work, such exotic radionuclides have been extracted from previously proton-irradiated stainless steel samples using wet chemistry separation techniques. The irradiated construction material has arisen from an extended material research programme at the Paul Scherrer Institute, called STIP (SINQ Target Irradiation Program), where several thousand samples of different materials were irradiated with protons and neutrons of energies up to 570 MeV. In total, 8 x 10(17) atoms of Ti-44, similar to 10(16) atoms of Al-26 and similar to 10(19) atoms of Mn-53 are available from selected samples. These materials may now be used to produce targets or radioactive beams for nuclear reaction studies with protons, neutrons and alpha-particles. The work is part of the ERAWAST initiative (Exotic Radionuclides from Accelerator Waste for Science and Technology), aimed at facilitating new collaborations between the isotope producers and users from different scientific fields including nuclear astrophysics.

Organisation(s)

Isotope Physics

External organisation(s)

Paul Scherrer Institute, Helmholtz-Zentrum Dresden-Rossendorf, TRIUMF, University of Edinburgh, Universität Basel, European Organization for Nuclear Research (CERN)

Journal

Journal of Physics G: Nuclear and Particle Physics

Volume

39

No. of pages

21

ISSN

0954-3899

DOI

https://doi.org/10.1088/0954-3899/39/10/105201

Publication date

2012

Peer reviewed

Yes

Austrian Fields of Science 2012

1030 Physics, Astronomy

Portal url

https://ucris.univie.ac.at/portal/en/publications/ti44-al26-and-mn53-samples-for-nuclear-astrophysics-the-needs-the-possibilities-and-the-sources(834ea39c-09bf-4e3b-83d2-9cb71760616b).html