IMRT or VMAT simulations

Dear Experts,

I have .dcm, RP.dcm, RD.dcm and RS.dcm files and that can be imported in the flair.

Now, can I simulate photon-based IMRT (Intensity Modulated Radiotherapy) or VMAT (Volumetric Arc Therapy) plan in FLUKA using these files ?

Additionally I have the following general queries for the situation when we import the RP.dcm file:

  1. I hope it will take the following information from RP.dcm file: beamlets (through SpotBeam) and gantry angles.

  2. Should I put BEAMPOS card in this case ?

  3. If IMRT is done using 6 MV photon, I hope I need to compile the photon spectrum and open 10 cm x 10 cm field size through source.f card ?

  4. I am not supposed to make the geometry of accelerator head or collimator or MLCs. That will be taken care by the imported RP.dcm file. Am I correct ?

Any example file or any documents related to this will be helpful for me.

Any reply will be helpful for me. Thanking you in advance.