Dear Adrian,
for accurate and realistic depth-dose profiles, you need to consider all
possible interaction processes, i.e.
- inelastic Coulomb scattering with atomic electrons, responsable of range
straggling
- elastic scattering with atomic nuclei, responsable of laterale penumbra
- non-elastic nuclear reactions with atomic nuclei, responsable of reduced
primary beam fluence
However, if for your interest you wish to disantangle some process to see
its effect on the depth-dose profile, you can change the threshold of
kinetic energy for hadron elastic scattering and hadron inelastic reactions.
This can be done by means of WHAT(3) and WHAT(4) in the THRESHOLd card. If
you set the threshold energy sufficiently high, this is equivalent to
switching off the corresponding process, either hadron elastic scattering
(WHAT(3)) or hadron inelastic reactions (WHAT(4)).
I hope this helps,
Giulia
On Fri, 24 Apr 2020, Adrian Montes Plaza wrote:
> Dear FLUKA experts,
>
> I am interested in making simulations with protons about dose distributions
> like Bragg peak and central-axis dose. I wanted to know what card (and how)
> of the input allows me to switch off nuclear reactions, just to run it only
> considering EM interactions.
>
> Regards,
> Adrian
>
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Received on Sun Apr 26 2020 - 22:24:23 CEST