Calculation of the proximity function of electrons.
A new semianalytical method to calculate the proximity function for electrons is proposed. An integral equation for the proximity function that can be solved by using information on the spatial dose distributions is obtained. The proximity function for electrons in the energy range from 10 eV to 10 keV is calculated by solving the equation numerically, using a set of electron collision cross sections for water vapor. The results are in good agreement with those obtained using the Monte Carlo method. The proposed method can be used for electrons of high energies much more efficiently than the Monte Carlo method.
Dayashankar
Division of Radiological Protection, Bhabha Atomic Research Centre, Bombay, India.
Prasad
M A
MA
D004583:Electrons; D008433:Mathematics; D008962:Models, Theoretical; D011830:Radiation Effects