University of Illinois Urbana-Champaign

Resonant photon scattering from isotopes of lead and bismuth

Chapuran, Thomas Edward

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https://hdl.handle.net/2142/25566

Description

Title
Resonant photon scattering from isotopes of lead and bismuth
Author(s)
Chapuran, Thomas Edward
Issue Date
1979
Doctoral Committee Chair(s)
Brussel, M.K.
Department of Study
Physics
Discipline
Physics
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
  • resonant photon scattering
  • lead isotopes
  • bismuth isotopes
  • nuclear resonant photon scattering
Language
en
Abstract
Nuclear resonant photon scattering from 206, 207, 208Pb and 209Bi was measured over excitation regions from 4 MeV to the neutron thresholds, using bremsstrahlung beams with endpoint energies of 7.0, 7.5, 7.6, S.5 and 10.4 MeV. Photons scattered from enriched targets of the lead isotopes and from bismuth were observed with a Ge(Li) detector. Energies and values of gr02 / Ir were determined from measurements at 127 degrees for many levels not o previously observed in photon scattering experiments. Spins of levels in 206Pb and 208Pb were determined from angular distribution measurements. Ground state branching ratios for seven transitions in 208Pb were obtained from a self-absorption experiment. The results are compared with results from earlier spectroscopic studies and from average photon scattering cross section measurements. The spectra of 207Pb and 209Bi are discussed in terms of the excitations of the 208Pb core.
Type of Resource
text
Permalink
http://hdl.handle.net/2142/25566
Copyright and License Information
1979 Thomas Edward Chapuran

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