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Macklin, R.L.; Winters, R.R.; Denison Univ., Granville, OH
Oak Ridge National Lab., TN (USA)1989
Oak Ridge National Lab., TN (USA)1989
AbstractAbstract
[en] Isotopically enriched samples of the tellurium isotopes from mass 122 to mass 126 were used to measure neutron capture in the energy range 2.6 keV to 600 keV at the Oak Ridge Electron Linear Accelerator pulsed neutron source. Starting at 2.6 keV, over 200 Breit-Wigner resonances for each isotope were used to describe the capture data. Least-squares adjustment gave parameters and their uncertainties for a total of 1659 resonances. Capture cross sections averaged over Maxwellian neutron distributions with temperatures ranging from kT = 5 keV to kT = 100 keV were derived for comparison with stellar nucleosynthesis calculations. For the three isotopes shielded from the astrophysical r-process, 122Te, 123Te and 124Te at kT = 30 keV the respective values were (280 ± 10) mb, (819 ± 30) mb and (154 ± 6) mb. The corresponding products of cross section and solar system abundance are nearly equal in close agreement with s-process nucleosynthesis calculations. 26 refs., 8 figs., 10 tabs
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Jul 1989; 40 p; CONTRACT AC05-84OR21400; Available from NTIS, PC A03/MF A01 as DE89015682; OSTI; INIS; US Govt. Printing Office Dep
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