Etched track profiles for relativistic 7 GeV silicon and 17.48 GeV Nickel ions in PADC detector: The case study of convex track walls

Fromm, M.; Abu‐Shady, M.; Groetz, Jean-Emmanuel; Awad, E.M.

doi:10.1016/j.radphyschem.2021.109566

Cited by 6 publications

(1 citation statement)

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“…However, Geant4-DNA [31] is often considered as a powerful MC simulation tool in the present days. Finally, but not the last, radial dose for high energy ions [32] can be calculated using FLUKA [33] and PHITS [34] MC codes.…”

Section: Introductionmentioning

confidence: 99%

Distribution of radial dose in water at nanometer scale for ions of the same linear energy transfer: benefits of the concept of annular dose

Awad¹,

Abu‐Shady²,

Fromm³

2022

Phys. Scr.

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Annular-dose AD is a new conception introduced, based on the radial dose distribution, RDD, introduced by the present work. AD is the integrated dose for many shells around the ions and it is defined as the dose deposited in the shell volume perpendicular to the ion path of width(r=0.1→R_min), length equal 2π and thickness equal unity (1nm). Thus, it integrates and maps the deposited dose due to ion in any medium at nanometer scale better than the ordinary radial dose. Katz and Awad radial dose formulae plus Butts-Katz and Tabata electron range-energy relations are composing three different approaches. These approaches were used for studying the AD for 30 ions forming 4 different equal LET and have energy at Bragg peak region from 1.5 to 24 MeV/n. The annual dose, AD as a function of the shell width for the ions under investigation showed that dose distributions around the ions of same LET are not the same and a clear peak at certain shell width called the ion’s maximum annular dose width, rMADW was determined for the first time. The rMADW is the position where the maximum reachable dose is delivered by secondary electrons around the ion. The ion’s rMADW showed an increasing function with Z*β within the same LET group. Interestingly, it was found that rMADW behaves as an increasing monotonic function of the relative ion velocity, β using the three approaches considered in this work.

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