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

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

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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).

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
Publication status	Published - 15 Oct 2015

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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, 361, 638-642. https://doi.org/10.1016/j.nimb.2015.05.033

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

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).",

keywords = "Accelerator Mass Spectrometry, Fe, Gamma Ray Spectroscopy, Half-life",

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

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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

TY - JOUR

T1 - Towards a measurement of the half-life of 60Fe for stellar and early Solar System models

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

Y1 - 2015/10/15

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).

KW - Accelerator Mass Spectrometry

KW - Fe

KW - Gamma Ray Spectroscopy

KW - Half-life

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U2 - 10.1016/j.nimb.2015.05.033

DO - 10.1016/j.nimb.2015.05.033

M3 - Article

SN - 0168-583X

VL - 361

SP - 638

EP - 642

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

ER -

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

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