High-resolution laser spectroscopy of long-lived plutonium isotopes
Voss, A., Sonnenschein, V., Campbell, P., Cheal, B., Kron, T., Moore, I., Pohjalainen, I., Raeder, S., Trautmann, N., & Wendt, K. (2017). High-resolution laser spectroscopy of long-lived plutonium isotopes. Physical Review A, 95(3), Article 032506. https://doi.org/10.1103/PhysRevA.95.032506
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Physical Review AAuthors
Kron, T. |
Date
2017Copyright
© 2017 American Physical Society. Published in this repository with the kind permission of the publisher.
Long-lived isotopes of plutonium were studied using two complementary techniques, high-resolution resonance ionization spectroscopy (HR-RIS) and collinear laser spectroscopy (CLS). Isotope shifts have been measured on the 5f67s27F0→5f56d27s(J=1) and 5f67s27F1→5f67s7p(J=2) atomic transitions using the HR-RIS method and the hyperfine factors have been extracted for the odd mass nuclei 239,241Pu. CLS was performed on the 5f67s8F1/2→J=1/2(27523.61cm−1) ionic transition with the hyperfine A factors measured for 239Pu. Changes in mean-squared charge radii have been extracted and show a good agreement with previous nonoptical methods, with an uncertainty improvement by approximately one order of magnitude. Plutonium represents the heaviest element studied to date using collinear laser spectroscopy.
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