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Cross section of (n,2n) reaction on the low-abundance isotopes 156,158Dy at 13.5 and 14.8 MeV

  • Junhua Luo
  • Li An
  • Li Jiang
Article

Abstract

Activation cross-sections for the 156Dy(n,2n)155Dy and 158Dy(n,2n)157m+gDy reactions with low-abundance target isotopes (156Dy:0.056 %, 158Dy:0.095 %) were measured by means of the activation technique and a coaxial HPGe γ-ray detector at 13.5 and 14.8 MeV. Theoretical excitation functions were calculated using the nuclear-reaction codes EMPIRE-3.2 Malta and TALYS-1.6 with default parameters, at neutron energies varying from the reaction threshold to 20 MeV. The results were discussed and compared with some corresponding values found in the literature, with the evaluation data in ENDF/B-VII.1, JENDF-4.0, and JEFF-3.2 libraries, and with the estimates obtained from a published empirical formula based on the statistical model.

Keywords

Dysprosium Activation method Cross sections 14 MeV neutrons Low-abundance target 

Notes

Acknowledgments

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. 11165007) and by the Key Project of Chinese Ministry of Education (No. 211184).

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2015

Authors and Affiliations

  1. 1.Institute of Theoretical PhysicsHexi UniversityZhangyeChina
  2. 2.School of Physics and Electromechanical EngineeringHexi UniversityZhangyeChina
  3. 3.Institute of Nuclear Physics and ChemistryChinese Academy of Engineering PhysicsMianyangChina

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