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Activation cross sections for the 110Pd(n,2n) reaction and the isomeric cross-sections ratio of 109m,gPd in the neutron energy range of 13–15 MeV

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Abstract

The 110Pd(n,2n)109m,gPd reaction cross-sections and the isomeric cross section ratios (σm/σg) in the neutron energy range of 13-15 MeV have been measured by an activation and off-line g-ray spectrometric technique using the 300Pd Neutron Generator at the Chinese Academy of Engineering Physics (CAEP). The natural Pd samples and Nb monitor foils were activated together to determine the reaction cross section and the incident neutron flux. The neutron beams were generated via the 3H(d,n)4He reaction. The pure cross section of the ground-state was derived from the absolute cross section of the metastable state and the residual nuclear decay analysis. The 110Pd(n,2n)109m,gPd reaction excitation functions and their isomeric cross section ratios were also calculated theoretically using the computer code TALYS-1.8 with different level density options. Results are discussed and compared with the corresponding literature data.

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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 National Natural Science Foundation of China (Grant No. 11565012).

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Authors and Affiliations

  1. Institute of New Energy, Hexi University, Zhangye, 734000, China

    Junhua Luo

  2. School of Physics and Electromechanical Engineering, Hexi University, Zhangye, 734000, China

    Junhua Luo & Long He

  3. Institute of Nuclear Physics and Chemistry, Chinese Academy of Engineering Physics, Mianyang, 621900, China

    Li Jiang

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Correspondence to Junhua Luo.

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Luo, J., Jiang, L. & He, L. Activation cross sections for the 110Pd(n,2n) reaction and the isomeric cross-sections ratio of 109m,gPd in the neutron energy range of 13–15 MeV. J Radioanal Nucl Chem 316, 733–739 (2018). https://doi.org/10.1007/s10967-018-5805-5

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