Abstract
Cross-sections for (n,p), (n,α), (n,n′α), (n,t) and (n,2p) reactions have been measured on 139La isotope at the neutron energy 14.8 MeV using the activation technique in combination with high-resolution gamma-ray spectroscopy. Neutrons were produced via the 3H(d,n)4He reaction using a solid tritium–titanium target. The neutron fluences were determined using the monitor reaction 27Al(n,α)24Na. The neutron energy in this measurement was determined by cross section ratios for the 90Zr(n,2n)89m+gZr and 93Nb(n,2n)92mNb reactions. Data are reported for the following reactions: 139La(n,p)139Ba, 139La(n,α)136Cs, 139La(n,n′α)135mCs, 139La (n,t)137mBa, and 139La(n,2p)138Cs. The cross sections were discussed and compared with experimental data found in the literature, and with the comprehensive evaluation data in ENDF/B-VII.0, JENDL-3.3, JEFF-3.1/A, and TENDL-2008 libraries.
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Acknowledgements
We would like to thank the Intense Neutron Generator group at Chinese Academy of Engineering Physics for performing the irradiations. This work was supported by the Program for Long Yuan Young Innovative Talents of Gansu Province, China and Scientific Research Start up Outlay of High-Position Talent in Hexi University in Gansu Province, China.
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Luo, J., Li, C., Liu, Z. et al. Measurement of neutron-induced activation cross sections of lanthanum at 14.8 MeV. J Radioanal Nucl Chem 283, 421–426 (2010). https://doi.org/10.1007/s10967-009-0396-9
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DOI: https://doi.org/10.1007/s10967-009-0396-9