Publikationen

Towards a measurement of the half-life of <sup>60</sup>Fe for stellar and early Solar System models

Autor(en)
K. Ostdiek, T. Anderson, W. Bauder, M. Bowers, P. Collon, R. Dressler, J. Greene, Walter Kutschera, W. Lu, M. Paul, D. Robertson, D. Schumann, M. Skulski, A. Wallner
Abstrakt

Radioisotopes, produced in stars and ejected into the Interstellar

Medium, are important for constraining stellar and early Solar System

(ESS) models. In particular, the half-life of the radioisotope, 60Fe,

can have an impact on calculations for the timing for ESS events, the

distance to nearby Supernovae, and the brightness of individual,

non-steady-state 60Fe gamma ray sources in the Galaxy. A

half-life measurement has been undertaken at the University of Notre

Dame and measurements of the 60Fe/56Fe

concentration of our samples using Accelerator Mass Spectrometry has

begun. This result will be coupled with an activity measurement of the

isomeric decay in 60Co, which is the decay product of 60Fe. Preliminary half-life estimates of (2.53 ± 0.24) × 106 years seem to confirm the recent measurement by Rugel et al. (2009).

Organisation(en)
Isotopenphysik
Externe Organisation(en)
University of Notre Dame, Argonne National Laboratory, Paul Scherrer Institute, Hebrew University Jerusalem, Australian National University
Journal
Nuclear Instruments & Methods in Physics Research. Section B. Beam Interactions with Materials and Atoms
Band
361
Seiten
638-642
Anzahl der Seiten
5
ISSN
0168-583X
DOI
https://doi.org/10.1016/j.nimb.2015.05.033
Publikationsdatum
10-2015
Peer-reviewed
Ja
ÖFOS 2012
103014 Kernphysik
Schlagwörter
ASJC Scopus Sachgebiete
Nuclear and High Energy Physics, Instrumentation
Link zum Portal
https://ucris.univie.ac.at/portal/de/publications/towards-a-measurement-of-the-halflife-of-60fe-for-stellar-and-early-solar-system-models(5b239d0d-b2e4-407a-a590-d146f580b194).html