AT.beam.par.technical.to.physical {libamtrack} | R Documentation |
Converts technical, accelerator parameters of a symmetric, double lateral Gaussian shape beam, i.e. total number of particles and FWHM to physical beam parameters, i.e. central (=peak) fluence and width (= 1 standard deviation)
AT.beam.par.technical.to.physical(N, FWHM.mm)
N |
absolute particle numbers (array of size n). |
FWHM.mm |
FWHMs (in mm) (array of size n). |
fluence.cm2 |
resulting fluence in beam center (array of size n) |
sigma.cm |
resulting beam width stdev (array of size n) |
View the C source code here: http://sourceforge.net/apps/trac/libamtrack/browser/trunk/src/AT_PhysicsRoutines.c#L439
# Get peak dose of a 142.66 MeV protons in Alox # from technical beam parameters peak.fluence.cm2 <- AT.beam.par.technical.to.physical( N = 3.2e8, FWHM.mm = 15.2)[1] AT.dose.Gy.from.fluence.cm2( E.MeV.u = 142.66, particle.no = AT.particle.no.from.particle.name("1H"), material.no = AT.material.no.from.material.name("Aluminum Oxide"), fluence.cm2 = peak.fluence.cm2, stopping.power.source.no = 2)