Jie QI, Qingqian YAN. Simulation calculation of DNA damage induced by high-energy protons and heavy ions in space[J]. NUCLEAR TECHNIQUES, 2025, 48(3): 030501
- NUCLEAR TECHNIQUES
- Vol. 48, Issue 3, 030501 (2025)
Fig. 1. The energy distribution and flux share of the main particle types in galactic cosmic rays of solar minimum(a) Protons, (b) Helium ions, (c) Carbon ions, (d) Iron ions
Fig. 2. Energy spectra comparison of proton in galactic cosmic rays of solar minimum and maximum(a) Solar minimum, (b) Solar maximum
Fig. 3. The variation of the linear energy transfer (LET) of six types of radiation particles with increasing energy
Fig. 4. The yield of SSBs induced by monoenergetic radiation particles at different energies(a) Protons, (b) Helium ions, (c) Carbon ions, (d) Oxygen ions, (e) Silicon ions, (f) Iron ions
Fig. 5. The yield of DSBs induced by monoenergetic radiation particles at different energies
Fig. 6. RBEDSB of six 1 000 MeV high-energy radiation particles under 21% and 2% oxygen concentrations
Fig. 7. Differential energy spectrum of typical solar proton event
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Table 1. Evaluation methods for different types of DNA damage in MCDS
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Table 2. The yield of DNA damage induced by 1 000 MeV high-energy particles at an oxygen concentration of 2% and the difference between the results obtained at an oxygen concentration of 21%
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Table 3. Number of DSBs induced by 137Cs particles under different oxygen concentrations
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Table 4. The yield of SSBs and DSBs, RBEDSB induced by the major radiation particles in galactic cosmic rays during solar minimum and maximum
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Table 5. The yield of DNA damage and RBEDSB induced by typical solar proton event
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