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

K. Ostdiek; T. Anderson; W. Bauder; M. Bowers; P. Collon; R. Dressler; J. Greene; W. Kutschera; W. Lu; M. Paul; D. Robertson; D. Schumann; M. Skulski; A. Wallner

doi:10.1016/j.nimb.2015.05.033

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

K. Ostdiek^*, T. Anderson, W. Bauder, M. Bowers, P. Collon, R. Dressler, J. Greene, W. Kutschera, W. Lu, M. Paul, D. Robertson, D. Schumann, M. Skulski, A. Wallner

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

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).

Original language	English
Pages (from-to)	638-642
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	361
DOIs	https://doi.org/10.1016/j.nimb.2015.05.033
State	Published - 15 Oct 2015

Bibliographical note

Publisher Copyright:
© 2015 Elsevier B.V.All rights reserved.

Keywords

Accelerator Mass Spectrometry
Fe
Gamma Ray Spectroscopy
Half-life

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10.1016/j.nimb.2015.05.033

Cite this

Ostdiek, K., Anderson, T., Bauder, W., Bowers, M., Collon, P., Dressler, R., Greene, J., Kutschera, W., Lu, W., Paul, M., Robertson, D., Schumann, D., Skulski, M., & Wallner, A. (2015). Towards a measurement of the half-life of ⁶⁰Fe for stellar and early Solar System models. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 361, 638-642. https://doi.org/10.1016/j.nimb.2015.05.033

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abstract = "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).",

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Ostdiek, K, Anderson, T, Bauder, W, Bowers, M, Collon, P, Dressler, R, Greene, J, Kutschera, W, Lu, W, Paul, M, Robertson, D, Schumann, D, Skulski, M & Wallner, A 2015, 'Towards a measurement of the half-life of ⁶⁰Fe for stellar and early Solar System models', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 361, pp. 638-642. https://doi.org/10.1016/j.nimb.2015.05.033

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AU - Ostdiek, K.

AU - Anderson, T.

AU - Bauder, W.

AU - Bowers, M.

AU - Collon, P.

AU - Dressler, R.

AU - Greene, J.

AU - Kutschera, W.

AU - Lu, W.

AU - Paul, M.

AU - Robertson, D.

AU - Schumann, D.

AU - Skulski, M.

AU - Wallner, A.

PY - 2015/10/15

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N2 - 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).

AB - 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).

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