• High Power Laser and Particle Beams
  • Vol. 36, Issue 12, 126004 (2024)
Fang Zhang1, Zhiwei Dong1, Chenrui Chai2, Haijing Zhou1..., Jianzhu An1, Qiang Zhao1 and Bixi Xue1|Show fewer author(s)
Author Affiliations
  • 1Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
  • 2School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China
  • show less
    DOI: 10.11884/HPLPB202436.240292 Cite this Article
    Fang Zhang, Zhiwei Dong, Chenrui Chai, Haijing Zhou, Jianzhu An, Qiang Zhao, Bixi Xue. Research on radiation protection factors of basic ship structures[J]. High Power Laser and Particle Beams, 2024, 36(12): 126004 Copy Citation Text show less
    Gamma dose attenuation ratio of Al sphere
    Fig. 1. Gamma dose attenuation ratio of Al sphere
    Neutron dose attenuation ratio of Al sphere
    Fig. 2. Neutron dose attenuation ratio of Al sphere
    Equivalent model of planar source to point source
    Fig. 3. Equivalent model of planar source to point source
    Structural modeling in MC program
    Fig. 4. Structural modeling in MC program
    1/FNPvs side length (Al slab with thickness 15 cm )
    Fig. 5. 1/FNPvs side length (Al slab with thickness 15 cm )
    Radiation attenuation ratio of different slab materials for 1 MeV neutrons
    Fig. 6. Radiation attenuation ratio of different slab materials for 1 MeV neutrons
    Radiation attenuation ratio vs steel slab thicknesses for different neutron incident energies
    Fig. 7. Radiation attenuation ratio vs steel slab thicknesses for different neutron incident energies
    Radiation attenuation ratio vs steel slab thicknesses for neutron spectra
    Fig. 8. Radiation attenuation ratio vs steel slab thicknesses for neutron spectra
    Radiation attenuation ratio of different slab materials for 1 MeV γ
    Fig. 9. Radiation attenuation ratio of different slab materials for 1 MeV γ
    Radiation attenuation ratio vs steel slab thicknesses for Little Boy γ spectra
    Fig. 10. Radiation attenuation ratio vs steel slab thicknesses for Little Boy γ spectra
    Total radiation attenuation ratio vs steel slab thicknesses for neutron and γ
    Fig. 11. Total radiation attenuation ratio vs steel slab thicknesses for neutron and γ
    Neutron energy spectrum at detector for different slab thickness
    Fig. 12. Neutron energy spectrum at detector for different slab thickness
    γ energy spectrum at detector for different slab thickness
    Fig. 13. γ energy spectrum at detector for different slab thickness
    Secondary γ energy spectrum at detector for different slab thickness
    Fig. 14. Secondary γ energy spectrum at detector for different slab thickness
    Vertical irradiation downward to chamber
    Fig. 15. Vertical irradiation downward to chamber
    Total protection coefficient
    Fig. 16. Total protection coefficient
    elementmass fraction/%
    C0.026
    Mn1.520
    P0.002
    S0.001
    Si0.280
    Ni2.710
    Cr0.040
    Mo0.480
    Cu0.075
    Al0.002
    Ti0.005
    O0.018
    N0.003
    Fe94.878
    Table 1. Chemical composition of HSLA-100 steel
    Fang Zhang, Zhiwei Dong, Chenrui Chai, Haijing Zhou, Jianzhu An, Qiang Zhao, Bixi Xue. Research on radiation protection factors of basic ship structures[J]. High Power Laser and Particle Beams, 2024, 36(12): 126004
    Download Citation