High resolution γ spectroscopic reinvestigation of the 237NP → 233Pa → 233U chain decay

Kouassi, M. C.; Hachem, A.; Dalmasso, J.; Ardisson, G.

doi:10.1016/0022-5088(86)90387-5

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1990

1992

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“…Protactinium was desorbed from the column with a 1 M HN03+0.03M HF solution. A more detailed procedure has been given elsewhere [16].…”

Section: Sources Preparationmentioning

confidence: 99%

New²³³U levels fed in the²³³Pa β-decay

Kouassi¹,

Ardisson-Marsol²,

Ardisson³

1990

J. Phys. G: Nucl. Part. Phys.

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The 6-decay of radiochemically separated 233Pa sources has been reinvestigated using planar and coaxial HPGe detectors: the energies and intensities of 23 y-photons were determined in this work, eight of them are reported for the first time; the placement of the main y-lines was confirmed by y-y coincidence measurements.A 233U revised level scheme exhibits eleven excited states, of which three are newly proposed at energies 320.90, 380.30 and 455.96 keV, respectively interpreted as the I" = 5/2-member of the 5/2-[752] rotational band, the In = 7/2+ member of the 3/2+[631] band and the 5/2' member of the 1/2+ [631] band. The I n = 5 / 2 -level at 301.99 keV, observed in Coulomb excitation experiments, is also fed in 233Pa P-decay. RADIOACTIVITY 233Pa; measured E,, I,, ZK-x, y-y coinc.; deduced Is, logft; deduced 233U levels E, K, I, ~d, Nilsson assignments; Coriolis matrix elements; coaxial and planar HPGe detectors.

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“…Protactinium was desorbed from the column with a 1 M HN03+0.03M HF solution. A more detailed procedure has been given elsewhere [16].…”

Section: Sources Preparationmentioning

confidence: 99%