Gamma-Ray Beam Setup

Good day, I am a new FLUKA user and I was wondering if anyone could possibly provide insight on how to set my beam particle type to Gamma-Rays?

Thank you in adance.

Dear @cbaldwin,

The beam can be described with the BEAM card. Gamma rays are photon therefore you have to select PHOTON as particle in the BEAM card.

Have a look at the last beginner course for a basic introduction to Fluka and extra material.

Thank you very much for your help. I will have a look at the course.

Cheers