Nanoparticle definition inside a material

Dear All,

I would like to define nanoparticles inside a scintillator. Could you please point me how to do that or an example?

Thanks a lot.

I can’t remember if there is an example about this specific application. In general, you can define the nanoparticles as G4Orb and set them in the scintillator. The optical properties of the NPs should be defined as well.