Lifetime measurements of yrast states in 178Pt using the charge plunger method with a recoil separator

Heery, J.; Barber, L.; Vilhena, J.; Nara Singh, B. S.; Herzberg, R.-D.; Cullen, D. M.; Müller-Gatermann, C.; Beeton, G.; Bowry, M.; Dewald, A.; Grahn, T.; Greenlees, P. T.; Illana, A.; Julin, R.; Juutinen, S.; Keatings, J. M.; Leino, M.; Luoma, M.; O’Donnell, D.; Ojala, J.; Pakarinen, J.; Rahkila, P.; Ruotsalainen, P.; Sandzelius, M.; Sarén, J.; Sinclair, J.; Smith, J. F.; Sorri, J.; Spagnoletti, P.; Tann, H.; Uusitalo, J.; Zimba, G.

doi:10.1140/epja/s10050-021-00425-8

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Heery, J., Barber, L., Vilhena, J., Nara Singh, B. S., Herzberg, R.-D., Cullen, D. M., Müller-Gatermann, C., Beeton, G., Bowry, M., Dewald, A., Grahn, T., Greenlees, P. T., Illana, A., Julin, R., Juutinen, S., Keatings, J. M., Leino, M., Luoma, M., O’Donnell, D., . . . Zimba, G. (2021). Lifetime measurements of yrast states in 178Pt using the charge plunger method with a recoil separator. European Physical Journal A, 57(4), Article 132. https://doi.org/10.1140/epja/s10050-021-00425-8

Julkaistu sarjassa

European Physical Journal A

Tekijät

Heery, J. |

Barber, L. |

Vilhena, J. |

Nara Singh, B. S. |

Herzberg, R.-D. |

Cullen, D. M. |

Müller-Gatermann, C. |

Beeton, G. |

Bowry, M. |

Dewald, A. |

Grahn, T. |

Greenlees, P. T. |

Illana, A. |

Julin, R. |

Juutinen, S. |

Keatings, J. M. |

Leino, M. |

Luoma, M. |

O’Donnell, D. |

Ojala, J. |

Pakarinen, J. |

Rahkila, P. |

Ruotsalainen, P. |

Sandzelius, M. |

Sarén, J. |

Sinclair, J. |

Smith, J. F. |

Sorri, J. |

Spagnoletti, P. |

Tann, H. |

Uusitalo, J. |

Zimba, G.

Päivämäärä

2021

Tekijänoikeudet

Lifetime measurements in 178Pt with excited states de-exciting through γ-ray transitions and internal electron conversions have been performed. Ionic charges were selected by the in-flight mass separator MARA and measured at the focal plane in coincidence with the 4+1→2+1 257keV γ-ray transition detected using the JUROGAM 3 spectrometer. The resulting charge-state distributions were analysed using the differential decay curve method (DDCM) framework to obtain a lifetime value of 430(20) ps for the 2+1 state. This work builds on a method that combines the charge plunger technique with the DDCM analysis. As an alternative analysis, ions were selected in coincidence with the 178Pt alpha decay (Ealpha=5.458(5) MeV) at the focal plane. Lifetime information was obtained by fitting a two-state Bateman equation to the decay curve with the lifetime of individual states defined by a single quadrupole moment. This yielded a lifetime value of 430(50) ps for the 2+1 state, and 54(6) ps for the 4+1 ... showmore

Julkaisija

Springer

ISSN Hae Julkaisufoorumista

1434-6001

Lisätietoja rahoituksesta

This work was supported by the EU 7th Framework Programme, Integrating Activities Transnational Access, Project No. 262010 ENSAR. We acknowledge GAMMAPOOL support for the loan of the JUROGAM 3 detectors. J.H. acknowledges support of the Science and Technology Facilities Council, UK, Grant No. ST/R504920/1. C.M-G. and A.D. were supported by the Deutsche Forschungs Gemeinschaft (DFG), Germany, unde ... showmore

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A charge plunger device to measure the lifetimes of excited nuclear states where transitions are dominated by internal conversion

Barber, L.; Heery, J.; Cullen, D.M.; Singh, B.S. Nara; Herzberg, R.D.; Müller-Gatermann, C.; Beeton, G.; Bowry, M.; Dewald, A.; Grahn, T.; Greenlees, P.T.; Illana, A.; Julin, R.; Juutinen, S.; Keatings, J.M.; Luoma, M.; O’Donnell, D.; Ojala, J.; Pakarinen, J.; Rahkila, P.; Ruotsalainen, P.; Sandzelius, M.; Sarén, J.; Sinclair, J.; Smith, J.F.; Sorri, J.; Tann, H.; Uusitalo, J.; Vilhena, J.; Zimba, G. (Elsevier BV, 2020)

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