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The neutron total cross sections have been measured for lead isotopes 208Pb, 206Pb and 207Pb in the range from 1 eV to 20 keV and for 204Pb in the range from 1 eV to 100 eV using the time-of-flight facility GNEIS in Gatchina. An accuracy of the measured neutron total cross section (Δσ/σ) is about 10-3 for 208Pb, 10-2 for 206Pb and 207Pb, 5.10-2 for 204Pb. An estimated value of the neutron electric polarizability from analysis of total cross section of 208Pb is αn = (2.4 ± 1.1) 10-3fm3.
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