Nuclear Techniques ›› 2015, Vol. 38 ›› Issue (1): 10204-010204.doi: 10.11889/j.0253-3219.2015.hjs.38.010204

• LOW ENERGY ACCELERATOR, RAY AND APPLICATIONS • Previous Articles     Next Articles

Simulation study on radiation shielding capability of tungsten nickel combination and their alloys

HAN Zhongwu1 LUAN Weiling1 HAN Yanlong1 ZHANG Yan2 WU Guozhang2   

  1. 1(Key Laboratory of Pressure System and Safety, Ministry of Education, School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China) 2(School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China)
  • Received:2014-08-17 Revised:2014-11-01 Online:2015-01-10 Published:2015-01-07

Abstract: Background: Nuclear disaster rescue robots are of earnest desire for on-site rescue and post processing. The electronic devices of robots are quite sensible to operation condition, which could be suddenly destroyed by the γ-ray. Shielding is one of the effective methods that can enhance the anti-radiation properties of the protected content. Purpose: This paper sets up three types of combination models, W-Ni, Ni-W and their alloys, aiming at the protection effect towards γ-ray. Methods: The transmission and energy spectrum under γ-ray were simulated on the models with various thicknesses, W:Ni volume ratios and layer numbers based on Monte Carlo method. Results and Conclusion: Ni-W and alloys showed better shielding performance than the W-Ni, especially at short wave range (0?0.6 MeV). The increase of W amount weakened the difference among the three models. Less variation was found with layer numbers and the unidirectional disc source or point one.

Key words: γ-ray, Shielding materials, Monte Carlo method