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
- High Power Laser and Particle Beams
- Vol. 36, Issue 12, 126004 (2024)
Fig. 1. Gamma dose attenuation ratio of Al sphere
Fig. 2. Neutron dose attenuation ratio of Al sphere
Fig. 3. Equivalent model of planar source to point source
Fig. 4. Structural modeling in MC program
Fig. 5. 1/F NPvs side length (Al slab with thickness 15 cm )
Fig. 6. Radiation attenuation ratio of different slab materials for 1 MeV neutrons
Fig. 7. Radiation attenuation ratio vs steel slab thicknesses for different neutron incident energies
Fig. 8. Radiation attenuation ratio vs steel slab thicknesses for neutron spectra
Fig. 9. Radiation attenuation ratio of different slab materials for 1 MeV γ
Fig. 10. Radiation attenuation ratio vs steel slab thicknesses for Little Boy γ spectra
Fig. 11. Total radiation attenuation ratio vs steel slab thicknesses for neutron and γ
Fig. 12. Neutron energy spectrum at detector for different slab thickness
Fig. 13. γ energy spectrum at detector for different slab thickness
Fig. 14. Secondary γ energy spectrum at detector for different slab thickness
Fig. 15. Vertical irradiation downward to chamber
Fig. 16. Total protection coefficient
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Table 1. Chemical composition of HSLA-100 steel
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