Dose 2016

Stoichiometric calibration: An improved approach

U. Schneider et al PMB 1996

Verified for proton stopping power by measurements in a sheep head

Tissue substitutes

Real tissues *

stoichiometric approach

K

tissue substitute approach

ρ ρ =

s

e

Calibration based on tissue substitutes only is very sensitive to material chosen. Different substitutes give different calibration curves