Neutron capture cross sections for nucleosynthesis

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Maxwellian Neutron capture cross sections important for nucleosynthesis processes in stars are computed from the recommended individual resonance parameters, as well as from the measured energy dependent cross sections. The experimental neutron capture cross sections, spanning the energy range from a few keV to about 500 keV are evaluated in the framework of the Lane-Lynn capture formalism by including several partial waves in the analysis. In addition, in a few cases, the neutron inelastic scattering channels are included. The feasibility of extrapolating the calculations to nuclides off the stability line is examined. The effect of stellar temperature in the range ... continued below

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4 p.

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Mughabghab, S.F. July 1, 1997.

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Description

Maxwellian Neutron capture cross sections important for nucleosynthesis processes in stars are computed from the recommended individual resonance parameters, as well as from the measured energy dependent cross sections. The experimental neutron capture cross sections, spanning the energy range from a few keV to about 500 keV are evaluated in the framework of the Lane-Lynn capture formalism by including several partial waves in the analysis. In addition, in a few cases, the neutron inelastic scattering channels are included. The feasibility of extrapolating the calculations to nuclides off the stability line is examined. The effect of stellar temperature in the range from 10 keV to 50 keV on the Maxwellian neutron capture cross sections is investigated. The Maxwellian capture cross sections at 30-KeV for {sup 93}Nb, {sup 127}I, {sup 141}Pr, {sup 150}Sm, {sup 152}Sm, {sup 154}Sm, and {sup 181}Ta are computed and are compared with other determinations.

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4 p.

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INIS; OSTI as DE97006756

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  • International conference on nuclear data for science and technology, Trieste (Italy), 19-24 May 1997

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  • Other: DE97006756
  • Report No.: BNL-NCS--64427
  • Report No.: CONF-970524--4
  • Grant Number: AC02-76CH00016
  • Office of Scientific & Technical Information Report Number: 503466
  • Archival Resource Key: ark:/67531/metadc691464

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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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  • July 1, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • Nov. 9, 2015, 1:23 p.m.

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Mughabghab, S.F. Neutron capture cross sections for nucleosynthesis, article, July 1, 1997; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc691464/: accessed July 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.