SP-368 Biomedical Results of Apollo

Figure 1. LET as function of residual range (distance to the stopping point) for three species of heavy atomic nuclei.

Figure 1. LET as function of residual range (distance to the stopping point) for three species of heavy atomic nuclei. Not only is the maximum LET much larger for the heaviest particle (iron) shown, but also the range of the very high LET values (arbitrarily > 1000 KeV/µm) increases rapidly as nuclear charge (Z) increases.

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