Experimental survey of the potential energy surfaces associated with fission. [Mass and axial symmetry, probability]

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Progress in the experimental determination of the properties of the potential energy surface associated with fission is reviewed. The importance of nuclear symmetry effects on the calculation of fission widths is demonstrated. Evidence is presented for the fragmentation of the mass asymmetric second barrier in the thorium region and the axial asymmetric first barrier in the californium region. Detailed analyses of experimental data suggest the presence of two parallel second barriers; the normal mass asymmetric, axial symmetric barrier and a slightly higher mass symmetric, axial asymmetric barrier. Experimental barrier parameters are determined systematically and compared to calculations from various theoretical ... continued below

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Pages: 34

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Britt, H.C. January 1, 1979.

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Progress in the experimental determination of the properties of the potential energy surface associated with fission is reviewed. The importance of nuclear symmetry effects on the calculation of fission widths is demonstrated. Evidence is presented for the fragmentation of the mass asymmetric second barrier in the thorium region and the axial asymmetric first barrier in the californium region. Detailed analyses of experimental data suggest the presence of two parallel second barriers; the normal mass asymmetric, axial symmetric barrier and a slightly higher mass symmetric, axial asymmetric barrier. Experimental barrier parameters are determined systematically and compared to calculations from various theoretical models. Techniques for expanding fission probability measurements to higher energies are discussed. 53 references.

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Pages: 34

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Dep. NTIS, PC A03/MF A01.

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  • IAEA symposium on physics and chemistry of fission, Julich, F.R. Germany, 14 May 1979

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  • Report No.: LA-UR-79-533
  • Report No.: CONF-790507-1
  • Report No.: IAEA-SM-241-A1
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 6058868
  • Archival Resource Key: ark:/67531/metadc1109893

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Office of Scientific & Technical Information Technical Reports

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Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 1979

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  • Feb. 22, 2018, 7:45 p.m.

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  • May 30, 2018, 3:33 p.m.

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Britt, H.C. Experimental survey of the potential energy surfaces associated with fission. [Mass and axial symmetry, probability], article, January 1, 1979; New Mexico. (digital.library.unt.edu/ark:/67531/metadc1109893/: accessed February 20, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.