Decay of Pm151

H. Loft Nielsen; U. Bertelsen; G. T. Ewan

doi:10.1016/0029-5582(64)90238-X

Decay of Pm¹⁵¹

H. Loft Nielsen, U. Bertelsen, G. T. Ewan

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Abstract

The disintegration scheme of Pm151 has been studied by conversion electron-gamma and beta-gamma coincidence techniques using a six-gap β-ray spectrometer. The internal conversion electron spectrum has also been studied at 0.05% resolution in a 180° magnetic spectrograph. Fifty-seven transitions have been observed between levels in Sm151. Levels are established in Sm151 at 0, 4.8, 65.8, 69.7, 91.5, 104.8, 167.7, 168.4, 209.0, 323.9, 344.9, 445.8, 745, 823 and 875 keV. The relative parities of the levels have been established from the multipolarities of transitions between levels. The total decay energy determined by beta-gamma coincidence experiments is 1188 ±10 keV.

Original language	English
Journal	NUCLEAR PHYSICS
Volume	50
Issue number	4
Pages (from-to)	657-683
ISSN	0029-5582
DOIs	https://doi.org/10.1016/0029-5582(64)90238-X
Publication status	Published - 1964

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@article{742b1240ba5b41b398ff59ac4d7484cd,

title = "Decay of Pm151",

abstract = "The disintegration scheme of Pm151 has been studied by conversion electron-gamma and beta-gamma coincidence techniques using a six-gap β-ray spectrometer. The internal conversion electron spectrum has also been studied at 0.05% resolution in a 180° magnetic spectrograph. Fifty-seven transitions have been observed between levels in Sm151. Levels are established in Sm151 at 0, 4.8, 65.8, 69.7, 91.5, 104.8, 167.7, 168.4, 209.0, 323.9, 344.9, 445.8, 745, 823 and 875 keV. The relative parities of the levels have been established from the multipolarities of transitions between levels. The total decay energy determined by beta-gamma coincidence experiments is 1188 ±10 keV.",

author = "Nielsen, {H. Loft} and U. Bertelsen and Ewan, {G. T.}",

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doi = "10.1016/0029-5582(64)90238-X",

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TY - JOUR

T1 - Decay of Pm151

AU - Nielsen, H. Loft

AU - Bertelsen, U.

AU - Ewan, G. T.

PY - 1964

Y1 - 1964

N2 - The disintegration scheme of Pm151 has been studied by conversion electron-gamma and beta-gamma coincidence techniques using a six-gap β-ray spectrometer. The internal conversion electron spectrum has also been studied at 0.05% resolution in a 180° magnetic spectrograph. Fifty-seven transitions have been observed between levels in Sm151. Levels are established in Sm151 at 0, 4.8, 65.8, 69.7, 91.5, 104.8, 167.7, 168.4, 209.0, 323.9, 344.9, 445.8, 745, 823 and 875 keV. The relative parities of the levels have been established from the multipolarities of transitions between levels. The total decay energy determined by beta-gamma coincidence experiments is 1188 ±10 keV.

AB - The disintegration scheme of Pm151 has been studied by conversion electron-gamma and beta-gamma coincidence techniques using a six-gap β-ray spectrometer. The internal conversion electron spectrum has also been studied at 0.05% resolution in a 180° magnetic spectrograph. Fifty-seven transitions have been observed between levels in Sm151. Levels are established in Sm151 at 0, 4.8, 65.8, 69.7, 91.5, 104.8, 167.7, 168.4, 209.0, 323.9, 344.9, 445.8, 745, 823 and 875 keV. The relative parities of the levels have been established from the multipolarities of transitions between levels. The total decay energy determined by beta-gamma coincidence experiments is 1188 ±10 keV.

U2 - 10.1016/0029-5582(64)90238-X

DO - 10.1016/0029-5582(64)90238-X

M3 - Journal article

SN - 0029-5582

VL - 50

SP - 657

EP - 683

JO - NUCLEAR PHYSICS

JF - NUCLEAR PHYSICS

IS - 4