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E2 STATIC MOMENTS AND E2, E4 TRANSITION MOMENTS BY COULOMB EXCITATION.

California Univ., Berkeley. Donner Lab. California Univ., Berkeley. Lawrence Berkeley Lab., R. M. Diamond

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Abstract

are tau(2 /sup 3/P/sub 2/) = 1.62 +- 0.08 X 10/sup -9/ sec, tau(2 /sup 3/P/sub 0/) = 4.87 +- 0.44 X 10/sup -9/ sec, lambda(2 /sup 3/P/sub 2/--2 /sup 3/S/sub 1/) = 560.2 +- 0.9A, and lambda(2 /sup 3/P/sub 0/--2 /sup 3/S/sub 1/) = 660.7 +- 1.1A. This work has demonstrated the observability of these transitions in high-Z ions using beam-foil excitation. Employing a new grazing-incidence spectrometer this work will be pursued in ions of higher Z. Accuracies of at least one part in a thousand should be attainable and will probe the radiative contributions to these transitions to better than 10 percent in a previously unstudied region.

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are tau(2 /sup 3/P/sub 2/) = 1.62 +- 0.08 X 10/sup -9/ sec, tau(2 /sup 3/P/sub 0/) = 4.87 +- 0.44 X 10/sup -9/ sec, lambda(2 /sup 3/P/sub 2/--2 /sup 3/S/sub 1/) = 560.2 +- 0.9A, and lambda(2 /sup 3/P/sub 0/--2 /sup 3/S/sub 1/) = 660.7 +- 1.1A. This work has demonstrated the observability of these transitions in high-Z ions using beam-foil excitation. Employing a new grazing-incidence spectrometer this work will be pursued in ions of higher Z. Accuracies of at least one part in a thousand should be attainable and will probe the radiative contributions to these transitions to better than 10 percent in a previously unstudied region.

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Available abstract

are tau(2 /sup 3/P/sub 2/) = 1.62 +- 0.08 X 10/sup -9/ sec, tau(2 /sup 3/P/sub 0/) = 4.87 +- 0.44 X 10/sup -9/ sec, lambda(2 /sup 3/P/sub 2/--2 /sup 3/S/sub 1/) = 560.2 +- 0.9A, and lambda(2 /sup 3/P/sub 0/--2 /sup 3/S/sub 1/) = 660.7 +- 1.1A. This work has demonstrated the observability of these transitions in high-Z ions using beam-foil excitation. Employing a new grazing-incidence spectrometer this work will be pursued in ions of higher Z. Accuracies of at least one part in a thousand should be attainable and will probe the radiative contributions to these transitions to better than 10 percent in a previously unstudied region.

Key concepts: Atomic physics, Excitation, Physics, Coulomb excitation, Ion, Lambda, Excited state, Optics

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