How to calculate displacements per atom (DPA) using SRIM for a polychromatic beam as function of depth?

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kindly reply me. Thanking you in advance.

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Mauricio Germán Petaccia

You can perform several simulations according your energy spectra; this procedure can be run for different slabs. Do you understand? It will be a long road until the end because of the number of simulations but it's the first thing that comes to my mind.

Best Regards!

Simon Vallières

Great! But how? I only see a place to write the particles' energy that you want, but nothing to input a spectrum.

Ok, I am saying this, perform as many "single energy" simulations as needed for each thickness. I think it may be possible to build a spectrum by tuning the simulation parameters. Does the beam have equal number of particles for each energy? Try to characterize your beam first.