AT.effective.Z.from.composition {libamtrack} | R Documentation |
Computes the effective atomic number for a given material composition
AT.effective.Z.from.composition(Z, weight.fraction, electron.densities.cm3, exponent)
Z |
atomic numbers of constituents (array of size n). |
weight.fraction |
relative fractions of weight of constituents (array of size n). |
electron.densities.cm3 |
if not zero, weight fractions will additionally include electron densities per volume (array of size n). |
exponent |
exponent for additivity rule reflecting the photon energy regime (usually 3.5 at ~ 100 kV). |
effective.Z |
effective Z |
View the C source code here: http://sourceforge.net/apps/trac/libamtrack/browser/trunk/src/AT_DataMaterial.c#L420