Theory of neutron emission in fission

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Following a summary of the observables in neutron emission in fission, a brief history is given of theoretical representations of the prompt fission neutron spectrum N(E) and average prompt neutron multiplicity /bar /nu///sub p/. This is followed by descriptions, together with examples, of modern approaches to the calculation of these quantities including recent advancements. Emphasis will be placed upon the predictability and accuracy of the modern approaches. In particular, the dependence of N(E) and /bar /nu///sub p/ on the fissioning nucleus and its excitation energy will be discussed, as will the effects of and competition between first-, second- and third-chance ... continued below

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Pages: 8

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Madland, D.G. January 1, 1989.

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Description

Following a summary of the observables in neutron emission in fission, a brief history is given of theoretical representations of the prompt fission neutron spectrum N(E) and average prompt neutron multiplicity /bar /nu///sub p/. This is followed by descriptions, together with examples, of modern approaches to the calculation of these quantities including recent advancements. Emphasis will be placed upon the predictability and accuracy of the modern approaches. In particular, the dependence of N(E) and /bar /nu///sub p/ on the fissioning nucleus and its excitation energy will be discussed, as will the effects of and competition between first-, second- and third-chance fission in circumstances of high excitation energy. Finally, properties of neutron-rich (fission-fragment) nuclei are discussed that must be better known to calculate N(E) and /bar /nu///sub p/ with higher accuracy than is currently possible. 17 refs., 11 figs.

Physical Description

Pages: 8

Notes

NTIS, PC A02/MF A01 - OSTI; 1.

Source

  • Fifty years with nuclear fission conference, Gaithersburg, MD, USA, 25 Apr 1989

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  • Other: DE89013435
  • Report No.: LA-UR-89-1747
  • Report No.: CONF-890406-20
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 6138177
  • Archival Resource Key: ark:/67531/metadc1110451

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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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  • January 1, 1989

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  • Feb. 22, 2018, 7:45 p.m.

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  • May 31, 2018, 1:05 p.m.

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Madland, D.G. Theory of neutron emission in fission, article, January 1, 1989; New Mexico. (digital.library.unt.edu/ark:/67531/metadc1110451/: accessed September 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.