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Alpha-decay studies of the nuclides 195Rn and 196Rn

Abstract
The new neutron deficient nuclide 195 Rn and the nuclide 196 Rn have been produced in fusion evaporation reactions using 56 Fe ions on 142 Nd targets. A gas-filled recoil separator was used to separate the fusion products from the scattered beam. The activities were implanted in a position sensitive silicon detector. The isotopes were identified using spatial and time correlations between implants and decays. Two α decaying isomeric states, with E α = 7536 ( 11 ) keV [ T 1 / 2 = ( 6 + 3 − 2 ) ms ] for the ground state and E α = 7555 ( 11 ) keV [ T 1 / 2 = ( 5 + 3 − 2 ) ms ] for an isomeric state were identified in 195 Rn . In addition, the half-life and α decay energy of 196 Rn were measured with improved precision. The reduced widths deduced for the neutron deficient even-mass Rn isotopes suggest an onset of substantial deformation at N = 110.
Main Authors
Kettunen, Heikki Uusitalo, Juha Leino, Matti Jones, Peter Eskola, Kari Greenlees, Paul Helariutta, Kerttuli Julin, Rauno Juutinen, Sakari Kankaanpää, Harri Kuusiniemi, Pasi Muikku, Maarit Nieminen, Päivi Rahkila, Panu
Format
Articles Research article
Published
2001
Series
Physical Review C
Subjects
decay studies
nuklidit
Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/26493197
Publisher
American Physical Society
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-201902061431Use this for linking
Review status
Peer reviewed
ISSN
2469-9985
DOI
https://doi.org/10.1103/PhysRevC.63.044315
Language
English
Published in
Physical Review C
Citation
  • Kettunen, H., Uusitalo, J., Leino, M., Jones, P., Eskola, K., Greenlees, P., Helariutta, K., Julin, R., Juutinen, S., Kankaanpää, H., Kuusiniemi, P., Muikku, M., Nieminen, P., & Rahkila, P. (2001). Alpha-decay studies of the nuclides 195Rn and 196Rn. Physical Review C, 63(4), Article 044315. https://doi.org/10.1103/PhysRevC.63.044315
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In CopyrightOpen Access
Copyright©2001 American Physical Society

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author Kettunen, Heikki Uusitalo, Juha Leino, Matti Jones, Peter Eskola, Kari Greenlees, Paul Helariutta, Kerttuli Julin, Rauno Juutinen, Sakari Kankaanpää, Harri Kuusiniemi, Pasi Muikku, Maarit Nieminen, Päivi Rahkila, Panu
author_facet Kettunen, Heikki Uusitalo, Juha Leino, Matti Jones, Peter Eskola, Kari Greenlees, Paul Helariutta, Kerttuli Julin, Rauno Juutinen, Sakari Kankaanpää, Harri Kuusiniemi, Pasi Muikku, Maarit Nieminen, Päivi Rahkila, Panu
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description The new neutron deficient nuclide 195 Rn and the nuclide 196 Rn have been produced in fusion evaporation reactions using 56 Fe ions on 142 Nd targets. A gas-filled recoil separator was used to separate the fusion products from the scattered beam. The activities were implanted in a position sensitive silicon detector. The isotopes were identified using spatial and time correlations between implants and decays. Two α decaying isomeric states, with E α = 7536 ( 11 ) keV [ T 1 / 2 = ( 6 + 3 − 2 ) ms ] for the ground state and E α = 7555 ( 11 ) keV [ T 1 / 2 = ( 5 + 3 − 2 ) ms ] for an isomeric state were identified in 195 Rn . In addition, the half-life and α decay energy of 196 Rn were measured with improved precision. The reduced widths deduced for the neutron deficient even-mass Rn isotopes suggest an onset of substantial deformation at N = 110.
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spellingShingle Alpha-decay studies of the nuclides 195Rn and 196Rn Kettunen, Heikki Uusitalo, Juha Leino, Matti Jones, Peter Eskola, Kari Greenlees, Paul Helariutta, Kerttuli Julin, Rauno Juutinen, Sakari Kankaanpää, Harri Kuusiniemi, Pasi Muikku, Maarit Nieminen, Päivi Rahkila, Panu decay studies nuklidit Physical Review C
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title Alpha-decay studies of the nuclides 195Rn and 196Rn
title_full Alpha-decay studies of the nuclides 195Rn and 196Rn
title_fullStr Alpha-decay studies of the nuclides 195Rn and 196Rn
title_full_unstemmed Alpha-decay studies of the nuclides 195Rn and 196Rn
title_short Alpha-decay studies of the nuclides 195Rn and 196Rn
title_sort Alphadecay studies of the nuclides 195Rn and 196Rn
topic decay studies nuklidit
yso_count_txtF 1

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