Spencer-Attix water/medium stopping-power ratios for the dosimetry of proton pencil beams.

@article{Gom2013SpencerAttixWS,
  title={Spencer-Attix water/medium stopping-power ratios for the dosimetry of proton pencil beams.},
  author={Carles Gom{\`a} and Pedro Andreo and Josep Sempau},
  journal={Physics in medicine and biology},
  year={2013},
  volume={58 8},
  pages={
          2509-22
        }
}
This paper uses Monte Carlo simulations to calculate the Spencer-Attix water/medium stopping-power ratios (sw, med) for the dosimetry of scanned proton pencil beams. It includes proton energies from 30 to 350 MeV and typical detection materials such as air (ionization chambers), radiochromic film, gadolinium oxysulfide (scintillating screens), silicon and lithium fluoride. Track-ends and particles heavier than protons were found to have a negligible effect on the water/air stopping-power ratios… CONTINUE READING
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