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Monte Carlo simulations on the water-to-air stopping power ratio for carbon ion dosimetry
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10.1118/1.3085877
/content/aapm/journal/medphys/36/4/10.1118/1.3085877
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/36/4/10.1118/1.3085877

Figures

Image of FIG. 1.
FIG. 1.

The depth-dose distribution, relative to the entrance dose, and the stopping power ratio for a carbon ion beam in water for set 5 are shown.

Image of FIG. 2.
FIG. 2.

Shown is the water-to-air stopping power ratio for sets 1–5 from Table II for a carbon ion beam as a function of the depth in water. The is compared to the IAEA constant value of 1.13.

Image of FIG. 3.
FIG. 3.

Water-to-air stopping power ratio for sets 3 and 5 (Table II) as a function of depth in water for beams of different energy in MeV/u. The fluctuations in the data set calculated with ICRU tabulated data (set 3) are present for all beam energies.

Image of FIG. 4.
FIG. 4.

Water-to-air stopping power ratios for set 5 are shown according to the residual range of carbon beams for 5 different beam energies in water.

Image of FIG. 5.
FIG. 5.

Shown is the influence of secondary particles on the water-to-air stopping power ratio for a carbon ion beam. Compared to the from all particles, it increases for tritium to the end of the particle range.

Image of FIG. 6.
FIG. 6.

Dose distribution (line) of a SOBP and the calculated stopping power ratio (squares) as a function of depth in water.

Tables

Generic image for table
TABLE I.

Overview of the common published mean ionization potentials for water and tabulated stopping power data found in ICRU reports.

Generic image for table
TABLE II.

An overview of the combination of values for water and air, which we use for stopping power ratio calculations.

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/content/aapm/journal/medphys/36/4/10.1118/1.3085877
2009-03-18
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Monte Carlo simulations on the water-to-air stopping power ratio for carbon ion dosimetry
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/36/4/10.1118/1.3085877
10.1118/1.3085877
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