Decay studies of neutron-rich radium and actinium isotopes, including the new nuclides 232Ra and 232,234Ac

K. L. Gippert; E. Runte; W. D. Schmidt-Ott; P. Tidemand-Petersson; N. Kaffrell; P. Peuser; R. Kirchner; O. Klepper; W. Kurcewicz; P. O. Larsson; E. Roeckl; D. Schardt; K. Rykaczewski

doi:10.1016/0375-9474(86)90025-4

Decay studies of neutron-rich radium and actinium isotopes, including the new nuclides ²³²Ra and ^232,234Ac

K. L. Gippert
, E. Runte
, W. D. Schmidt-Ott
, P. Tidemand-Petersson
, N. Kaffrell
, P. Peuser
, R. Kirchner
, O. Klepper
, W. Kurcewicz
, P. O. Larsson
, E. Roeckl
, D. Schardt
, K. Rykaczewski

Nuclear Structure and Nuclear Astrophysi

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

Isotopes of the elements francium to neptunium were produced in multinucleon-transfer reactions of 11.4 MeV/u ²³⁸U ions with ^natW/Ta targets. On-line mass-separated samples were investigated by γ, X and β singles and coincidence measurements. New spectroscopic information was gained on the ²³¹Ac decay. For the first time, β-delayed γ-rays from ²³²Ra and ^232,233,234Ac were observed. Decay schemes for these isotopes are presented, and half-lives of the latter four nuclides were determined to be 250(50) s, 119(5) s, 145(10) s and 44(7) s, respectively. The comparison with theoretical half-life predictions gave remarkable agreement with gross-theory calculations.

Original language	English
Pages (from-to)	1-14
Number of pages	14
Journal	Nuclear Physics A
Volume	453
Issue number	1
DOIs	https://doi.org/10.1016/0375-9474(86)90025-4
State	Published - May 12 1986

Funding

* Work supported in part by the Bundesministerium fur Forschung und Technologie. o Present address: Institute of Physics, University of Aarhus, DK-8000 Aarhus C, Denmark. b On leave of absence from: Institute of Experimental Physics, Warsaw University, 00-6Si Warsaw, Poland. c Present address: RIFA AB, S-16381 Stockholm, Sweden. d Partially supported by the Polish Ministcry of Scicncc, High Education and Technics, under contract MR.I.5.13.01.

Keywords

Radioactivity

Access to Document

10.1016/0375-9474(86)90025-4

Cite this

Gippert, K. L., Runte, E., Schmidt-Ott, W. D., Tidemand-Petersson, P., Kaffrell, N., Peuser, P., Kirchner, R., Klepper, O., Kurcewicz, W., Larsson, P. O., Roeckl, E., Schardt, D., & Rykaczewski, K. (1986). Decay studies of neutron-rich radium and actinium isotopes, including the new nuclides ²³²Ra and ^232,234Ac. Nuclear Physics A, 453(1), 1-14. https://doi.org/10.1016/0375-9474(86)90025-4

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title = "Decay studies of neutron-rich radium and actinium isotopes, including the new nuclides 232Ra and 232,234Ac",

abstract = "Isotopes of the elements francium to neptunium were produced in multinucleon-transfer reactions of 11.4 MeV/u 238U ions with natW/Ta targets. On-line mass-separated samples were investigated by γ, X and β singles and coincidence measurements. New spectroscopic information was gained on the 231Ac decay. For the first time, β-delayed γ-rays from 232Ra and 232,233,234Ac were observed. Decay schemes for these isotopes are presented, and half-lives of the latter four nuclides were determined to be 250(50) s, 119(5) s, 145(10) s and 44(7) s, respectively. The comparison with theoretical half-life predictions gave remarkable agreement with gross-theory calculations.",

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author = "Gippert, \{K. L.\} and E. Runte and Schmidt-Ott, \{W. D.\} and P. Tidemand-Petersson and N. Kaffrell and P. Peuser and R. Kirchner and O. Klepper and W. Kurcewicz and Larsson, \{P. O.\} and E. Roeckl and D. Schardt and K. Rykaczewski",

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Gippert, KL, Runte, E, Schmidt-Ott, WD, Tidemand-Petersson, P, Kaffrell, N, Peuser, P, Kirchner, R, Klepper, O, Kurcewicz, W, Larsson, PO, Roeckl, E, Schardt, D & Rykaczewski, K 1986, 'Decay studies of neutron-rich radium and actinium isotopes, including the new nuclides ²³²Ra and ^232,234Ac', Nuclear Physics A, vol. 453, no. 1, pp. 1-14. https://doi.org/10.1016/0375-9474(86)90025-4

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T1 - Decay studies of neutron-rich radium and actinium isotopes, including the new nuclides 232Ra and 232,234Ac

AU - Gippert, K. L.

AU - Runte, E.

AU - Schmidt-Ott, W. D.

AU - Tidemand-Petersson, P.

AU - Kaffrell, N.

AU - Peuser, P.

AU - Kirchner, R.

AU - Klepper, O.

AU - Kurcewicz, W.

AU - Larsson, P. O.

AU - Roeckl, E.

AU - Schardt, D.

AU - Rykaczewski, K.

PY - 1986/5/12

Y1 - 1986/5/12

N2 - Isotopes of the elements francium to neptunium were produced in multinucleon-transfer reactions of 11.4 MeV/u 238U ions with natW/Ta targets. On-line mass-separated samples were investigated by γ, X and β singles and coincidence measurements. New spectroscopic information was gained on the 231Ac decay. For the first time, β-delayed γ-rays from 232Ra and 232,233,234Ac were observed. Decay schemes for these isotopes are presented, and half-lives of the latter four nuclides were determined to be 250(50) s, 119(5) s, 145(10) s and 44(7) s, respectively. The comparison with theoretical half-life predictions gave remarkable agreement with gross-theory calculations.

AB - Isotopes of the elements francium to neptunium were produced in multinucleon-transfer reactions of 11.4 MeV/u 238U ions with natW/Ta targets. On-line mass-separated samples were investigated by γ, X and β singles and coincidence measurements. New spectroscopic information was gained on the 231Ac decay. For the first time, β-delayed γ-rays from 232Ra and 232,233,234Ac were observed. Decay schemes for these isotopes are presented, and half-lives of the latter four nuclides were determined to be 250(50) s, 119(5) s, 145(10) s and 44(7) s, respectively. The comparison with theoretical half-life predictions gave remarkable agreement with gross-theory calculations.

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