Dear experts,
I have defined a gaussian beam of 700 keV, x(FWHM)=1 cm, y(FWHM)=1 cm, but I see the particles are incident in parallel to the sample. I wonder whether there is a problem with my settings.Here is the flair file.
Dear Dávid Horváth,
You are right. But I want the energy distribution on the target to take the shape of a Gaussian distribution with a middle high and a low side. Is it right to set the particle beam to be a Gaussian distribution in the x and y direction?
Regards,
Ma Yiyi.
It looks like you are mixing up the concepts of energy distribution and spatial (x/y) distribution, which are different things, both handled by the BEAM card. Of course the energy distribution is not visualized on a geometry plot.