double zMax = c1[2];
// Setup PRZs
if (charac == null)
throw new NullPointerException("charact == null");
przCharac = new PhiRhoZ3(charac, zMin, zMax, channels);
charac.addXRayListener(przCharac);
// Setup zs
zs = new double[channels];
double width = przCharac.binWidth();