Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2016, Vol. 27 ›› Issue (4): 95 doi: 10.1007/s41365-016-0082-x

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Investigation of neutronic parameters of natU spallation target irradiated by low-energy protons

Zohreh Gholamzadeh , Seyed Mohammad Mirvakili, Amin Davari, Mostafa Hassanzadeh   

  1. Reactor Research School, Nuclear Science and Technology Research Institute, Tehran, Iran
  • Contact: Zohreh Gholamzadeh E-mail:cadmium_109@yahoo.com
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Zohreh Gholamzadeh,Seyed Mohammad Mirvakili, Amin Davari, Mostafa Hassanzadeh. Investigation of neutronic parameters of natU spallation target irradiated by low-energy protons.Nuclear Science and Techniques, 2016, 27(4): 95     doi: 10.1007/s41365-016-0082-x
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Abstract:

Accelerator-based neutron sources could outstandingly compete with the reactor-based ones, which are widely used for research aims and radioisotope production. Spallation neutron sources are used by many research centers. In this work, the potential of natural uranium spallation target irradiated by low-energy protons for production of an external neutron source was investigated. MCNPX code was used to model the spallation target. The results showed using 30-MeV protons of 100 µA current a neutron flux in order of 107 n/s·cm2 leaks from an optimized-dimension target. Different physical models available in the computational code do not result in significant relative discrepancies for neutron yield and deposited heat calculations. Water with a velocity of 0.6 m/s can be used as coolant for the spallation target to keep the surface temperature under 100 °C at atmospheric pressure.

Key words: natU target,  Spallation,  Neutronic parameters , MCNPX 2.6.0 code