The scattering of gamma radiation from different isotopic mixtures of lead has been measured between 4.7 and 8.3 MeV with a variable energy beam with 175 keV resolution obtained by Compton scattering (n,γ) radiation of nickel from a curved aluminum plate. The elastically scattered radiation was detected with a 12.5 cm diameter, 12.5 cm long NaI(Tl) and with 27 or 49 cm3 Ge(Li) detectors located at scattering angles of 135° and 90°, respectively. Relative scattering measurements from targets of natural lead, radio-lead, and lead enriched in 208Pb show that the most prominent peaks of natural lead are in 208Pb at 7332.6 ± 1.3, 7087.7 ± 4.6, 7064.4 ± 3.5, 6721.0 ± 1.8, 5507.6 ± 1.8, 5292.6 ± 3.3, 4836.5 ± 4.6 keV. Measurements of resonant scattering and resonant self-absorption of the more intense scattered radiations provide information on level widths.
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