The Decay of 23.5 min U239

K. J. Blinowska; P. G: Hansen; H. L. Nielsen; O. Schult; K. Wien

doi:10.1016/0029-5582(64)90151-8

The Decay of 23.5 min U²³⁹

K. J. Blinowska, P. G: Hansen, H. L. Nielsen, O. Schult, K. Wien

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Abstract

The decay of U239 has been studied by means of a bent-crystal spectrometer, a six-gap spectrometer, a proportional-counter escape spectrometer and coincidence techniques. Transitions of 43.531 keV (E1, 13%), 74.673 keV (E1, 66%) and 31.142 keV (M1+E2, ≈ 16%) have been observed. The beta spectrum is shown to be complex with (80±4)% to the 74.7 keV level and (20∓4)% to the ground state.

Original language	English
Journal	NUCLEAR PHYSICS
Volume	55
Issue number	2
Pages (from-to)	331-336
ISSN	0029-5582
DOIs	https://doi.org/10.1016/0029-5582(64)90151-8
Publication status	Published - 1964

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title = "The Decay of 23.5 min U239",

abstract = "The decay of U239 has been studied by means of a bent-crystal spectrometer, a six-gap spectrometer, a proportional-counter escape spectrometer and coincidence techniques. Transitions of 43.531 keV (E1, 13\%), 74.673 keV (E1, 66\%) and 31.142 keV (M1+E2, ≈ 16\%) have been observed. The beta spectrum is shown to be complex with (80±4)\% to the 74.7 keV level and (20∓4)\% to the ground state.",

author = "Blinowska, \{K. J.\} and Hansen, \{P. G:\} and Nielsen, \{H. L.\} and O. Schult and K. Wien",

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journal = "NUCLEAR PHYSICS",

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AU - Blinowska, K. J.

AU - Hansen, P. G:

AU - Nielsen, H. L.

AU - Schult, O.

AU - Wien, K.

PY - 1964

Y1 - 1964

N2 - The decay of U239 has been studied by means of a bent-crystal spectrometer, a six-gap spectrometer, a proportional-counter escape spectrometer and coincidence techniques. Transitions of 43.531 keV (E1, 13%), 74.673 keV (E1, 66%) and 31.142 keV (M1+E2, ≈ 16%) have been observed. The beta spectrum is shown to be complex with (80±4)% to the 74.7 keV level and (20∓4)% to the ground state.

AB - The decay of U239 has been studied by means of a bent-crystal spectrometer, a six-gap spectrometer, a proportional-counter escape spectrometer and coincidence techniques. Transitions of 43.531 keV (E1, 13%), 74.673 keV (E1, 66%) and 31.142 keV (M1+E2, ≈ 16%) have been observed. The beta spectrum is shown to be complex with (80±4)% to the 74.7 keV level and (20∓4)% to the ground state.

U2 - 10.1016/0029-5582(64)90151-8

DO - 10.1016/0029-5582(64)90151-8

M3 - Journal article

SN - 0029-5582

VL - 55

SP - 331

EP - 336

JO - NUCLEAR PHYSICS

JF - NUCLEAR PHYSICS

IS - 2