AT.beam.par.physical.to.technical {libamtrack} | R Documentation |
Converts physical beam parameters of a symmetric, double lateral Gaussian shape beam, i.e. central (=peak) fluence and width (= 1 standard deviation) to technical, accelerator parameters, i.e. total number of particles and FWHM
AT.beam.par.physical.to.technical(fluence.cm2, sigma.cm)
fluence.cm2 |
fluence in beam center (array of size n). |
sigma.cm |
beam width stdev (array of size n). |
N |
resulting absolute particle numbers (array of size n) |
FWHM.mm |
resulting FWHMs (in mm) (array of size n) |
View the C source code here: http://sourceforge.net/apps/trac/libamtrack/browser/trunk/src/AT_PhysicsRoutines.c#L426
# Technical parameters for a double Gaussian beam # of Carbon ions at 270 MeV/u in water with # 0.5 cm sigma width and 1 Gy in the peak AT.beam.par.physical.to.technical( fluence.cm2 = AT.fluence.cm2.from.dose.Gy( E.MeV.u = 270, D.Gy = 1.0, particle.no = AT.particle.no.from.particle.name("12C"), material.no = AT.material.no.from.material.name("Water, Liquid"), stopping.power.source.no = 2), sigma.cm = 0.5)