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Radiochimica Acta

International Journal for chemical aspects of nuclear science and technology

Editor-in-Chief: Qaim, Syed M.

12 Issues per year


IMPACT FACTOR 2017: 1.202

CiteScore 2017: 1.22

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Source Normalized Impact per Paper (SNIP) 2017: 0.869

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2193-3405
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Volume 102, Issue 3

Issues

Production of 256Lr in the 249,250,251Cf + 11B, 243Am + 18O, and 248Cm + 14N reactions

N. Sato
  • Corresponding author
  • Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
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/ T. K. Sato
  • Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
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/ M. Asai
  • Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
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/ A. Toyoshima
  • Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
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/ K. Tsukada
  • Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
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/ Z. J. Li
  • Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
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/ K. Nishio
  • Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
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/ Y. Nagame
  • Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
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/ M. Schädel
  • Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
  • GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
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/ H. Haba / S. Ichikawa / H. Kikunaga
  • Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
  • Present address: Research Center for Electron Photon Science, Tohoku University, Mikamine, Sendai, 982-0826, Japan
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Published Online: 2014-02-17 | DOI: https://doi.org/10.1515/ract-2014-2142

Abstract

Production cross-sections of the isotope 256Lr in the 249,250,251Cf +11B, 243Am +18O, and 248Cm +14N reactions were measured using a He/KCl gas-jet transport system and a rotating wheel α-particle detection apparatus. The α-particle energy of 256Lr was distributed from 8.3 to 8.7 MeV and its half-life, T1/2, was measured to be 28 ± 1 s. The maximum cross sections in the 249Cf(11B, 4n)256Lr and 243Am(18O, 5n)256Lr reactions were determined to be 122 ± 36 nb at the beam energy of 63 MeV and 26 ± 7 nb at 96 MeV, respectively. In the 248Cm(14N, 6n)256Lr reaction, the cross section was measured to be 27 ± 10 nb at 91 MeV.

Keywords: 256Lr; 249,250,251Cf + 11B; 243Am + 18O; 248Cm + 14N; Excitation function; Alpha-spectrometry

About the article

Accepted: 2013-10-08

Received: 2012-11-26

Published Online: 2014-02-17

Published in Print: 2014-03-28


Citation Information: Radiochimica Acta, Volume 102, Issue 3, Pages 211–219, ISSN (Online) 2193-3405, ISSN (Print) 0033-8230, DOI: https://doi.org/10.1515/ract-2014-2142.

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