Dear FLUKA experts,
I am trying to get a 2-d angular distribution image on a surface. As of now, I am using multiple USRBDX detectors, in a grid format. For each USRBDX I create a separate cube region (a pixel), and define my crossing boundary as a plane inside the cubes (with the corresponding normalization factors for the surface area). The problem is, if I understood correctly, that I am limited to 700 regions total per input file. My intention is to cover a surface of about 30*30 cm with resolution of about 0.5*0.5 cm. Is there a smarter way to simulate it? For now I am only interested in angular distribution, and not in energy distribution.
Thank you in advance,
- Segmenting the geometry with separated cubes/pixels, probably you will end up with a region with multiple terms as
+somebody -cube1 -cube2 -cube3...., which will be highly inefficient during tracking
- Adding numerous USRBDX, will also induce a slowdown, since the code on every boundary crossing it will have to loop over all the USRBDX to perform the scoring
I would personally make only one big region including all pixels. With the use of the user routine mgdraw.f in the ENTRY BXDRAW (boundary crossing entry) to dump in a file all information for the particles I am interested,
position, direction, energy, particle type etc…
Then use an offline program to process and perform the plots
Following your suggestion and the discussion on Energy and angle of each particle escaping from the surface,
I was able to achieve my goal.
Thank you for your help.