Photon scattering on U238 and the interpretation of near-threshold photofission resonances

Y. Birenbaum, Ricardo Alarcon, S. D. Hoblit, R. M. Laszewski, A. M. Nathan

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Cross sections for photon elastic scattering have been measured for U238 between 4.8 and 6.4 MeV with an energy resolution of about 50 keV. These data have been used along with existing photofission data to infer the total photoabsorption cross section T and the fission transmission coefficient Tf below neutron threshold. We find that the inferred T varies smoothly with energy and generally follows the extrapolated tail of the giant dipole resonance, and that Tf shows a broad bump between 5.6 and 5.9 MeV. These results strongly support the contention that resonances seen in near-threshold photofission cross sections are due to the fission and not the photon channel.

Original languageEnglish (US)
Pages (from-to)1293-1297
Number of pages5
JournalPhysical Review C
Volume36
Issue number4
DOIs
StatePublished - 1987
Externally publishedYes

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thresholds
fission
cross sections
photons
scattering
photoabsorption
elastic scattering
dipoles
neutrons
energy
coefficients

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

Photon scattering on U238 and the interpretation of near-threshold photofission resonances. / Birenbaum, Y.; Alarcon, Ricardo; Hoblit, S. D.; Laszewski, R. M.; Nathan, A. M.

In: Physical Review C, Vol. 36, No. 4, 1987, p. 1293-1297.

Research output: Contribution to journalArticle

Birenbaum, Y. ; Alarcon, Ricardo ; Hoblit, S. D. ; Laszewski, R. M. ; Nathan, A. M. / Photon scattering on U238 and the interpretation of near-threshold photofission resonances. In: Physical Review C. 1987 ; Vol. 36, No. 4. pp. 1293-1297.
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AU - Nathan, A. M.

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