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Elastic scattering of16O and20Ne from235U

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Zeitschrift für Physik A Atoms and Nuclei

Abstract

The elastic scattering of 140-MeV16O and 175- and 252-MeV20Ne from235U has been measured. Experimental ratios of elastic to Rutherford scattering cross sections are analyzed in terms of both Fresnel scattering and optical models. The radius parameters derived from these analyses are found to be nearly independent of projectile energy. Total reaction cross sections are obtained and found to be in good agreement with the total fission cross section for these systems. Comparisons between the Fresnel theory and the optical model give generally good agreement. A simple formula which parameterizes the total reaction cross section in terms of the interaction radius is presented for16O and20Ne reactions.Nuclear Reactions:235U(16O,16O),E=140 MeV;235U(20Ne,20Ne),E=175 MeV, 252 MeV; measuredσ el; compared with Fresnel and optical models; deduced maximum angular momenta, interaction radii, total reaction cross section.

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Author notes

  1. R. G. Clark

    Present address: Federal Energy Administration, Washington, DC, USA

  2. R. G. Sextro

    Present address: Lawrence Berkeley Laboratory, Energy and Environment Division, USA

  3. A. M. Zebelman

    Present address: Department of Laboratory Medicine, University of Washington, 98195, Seattle, WA, USA

Authors and Affiliations

  1. Department of Chemistry and Cyclotron Laboratory, University of Maryland, College Park, Maryland, USA

    W. G. Meyer, R. G. Clark & V. E. Viola Jr.

  2. Nuclear Chemistry Division, Lawrence Berkeley Laboratory, Berkeley, California, USA

    R. G. Sextro & A. M. Zebelman

Authors
  1. W. G. Meyer
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  2. R. G. Clark
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  3. V. E. Viola Jr.
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  4. R. G. Sextro
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  5. A. M. Zebelman
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Additional information

Work supported by U.S. Energy Research and Development Administration

One of us (V2) wishes to thank the Lawrence Berkeley Laboratory for partial support during the time this work was performed. In particular we thank A. M. Poskanzer for his encouragement and cooperation in many aspects of this work. J.R. Huizenga, K.L. Wolf and J. Birkelund are acknowledged for many discussions concerning the experimental and theoretical analyses of heavy-ion elastic scattering data. We are also grateful to J. Cerny for making available his scattering chamber and electronics for use in these experiments and D. L. Hendrie for his cooperation with the scheduling. The assistance of Dave Clark and the 88-inch cyclotron crew in providing these beams is acknowledged. We also acknowledge the support of the University of Maryland Cyclotron Laboratory and Computer Science Center for providing computation facilities and Dr. D.A. Goldberg for making available his modified version of JIB-III.

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Meyer, W.G., Clark, R.G., Viola, V.E. et al. Elastic scattering of16O and20Ne from235U. Z Physik A 277, 141–146 (1976). https://doi.org/10.1007/BF01433705

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  • DOI: https://doi.org/10.1007/BF01433705

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