Low lying states of Th229

Torkild Andersen; K. Maack Bisgård; P.Gregers Hansen

doi:10.1016/0029-5582(61)90311-X

Low lying states of Th229

Torkild Andersen, K. Maack Bisgård, P.Gregers Hansen

Aarhus University

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The decay of 1.6 × 105y U233 has been studied by means of a six gap beta-ray spectrometer, a xenon filled proportional counter and scintillation spectrometers. Internal conversion electrons having energies below 100 keV were measured. The mixing ratios for the 42 keV and the 55 keV transitions agree with the assumed rotational character of the 42 keV and 97 keV states. Results concerning the 163 keV state indicate that this state is also a member of the ground state rotational band.

Original language	English
Journal	Nuclear Physics
Volume	27
Issue number	4
Pages (from-to)	673-680
ISSN	0029-5582
DOIs	https://doi.org/10.1016/0029-5582(61)90311-X
Publication status	Published - 1961

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title = "Low lying states of Th229",

abstract = "The decay of 1.6 × 105y U233 has been studied by means of a six gap beta-ray spectrometer, a xenon filled proportional counter and scintillation spectrometers. Internal conversion electrons having energies below 100 keV were measured. The mixing ratios for the 42 keV and the 55 keV transitions agree with the assumed rotational character of the 42 keV and 97 keV states. Results concerning the 163 keV state indicate that this state is also a member of the ground state rotational band.",

author = "Torkild Andersen and {Maack Bisgård}, K. and P.Gregers Hansen",

year = "1961",

doi = "10.1016/0029-5582(61)90311-X",

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journal = "Nuclear Physics",

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T1 - Low lying states of Th229

AU - Andersen, Torkild

AU - Maack Bisgård, K.

AU - Hansen, P.Gregers

PY - 1961

Y1 - 1961

N2 - The decay of 1.6 × 105y U233 has been studied by means of a six gap beta-ray spectrometer, a xenon filled proportional counter and scintillation spectrometers. Internal conversion electrons having energies below 100 keV were measured. The mixing ratios for the 42 keV and the 55 keV transitions agree with the assumed rotational character of the 42 keV and 97 keV states. Results concerning the 163 keV state indicate that this state is also a member of the ground state rotational band.

AB - The decay of 1.6 × 105y U233 has been studied by means of a six gap beta-ray spectrometer, a xenon filled proportional counter and scintillation spectrometers. Internal conversion electrons having energies below 100 keV were measured. The mixing ratios for the 42 keV and the 55 keV transitions agree with the assumed rotational character of the 42 keV and 97 keV states. Results concerning the 163 keV state indicate that this state is also a member of the ground state rotational band.

U2 - 10.1016/0029-5582(61)90311-X

DO - 10.1016/0029-5582(61)90311-X

M3 - Journal article

SN - 0029-5582

VL - 27

SP - 673

EP - 680

JO - Nuclear Physics

JF - Nuclear Physics

IS - 4

ER -

Low lying states of Th229

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