Dear Jonas,
X-ray radiation can't penetrate such a thick tungsten material in your
geometry, way to big attenuation coefficient!
You can recreate geometry close to typical x-ray tube (angled anode
material and aluminum filter on the distance from anode).
Attenuation coefficient for W:
https://physics.nist.gov/PhysRefData/XrayMassCoef/ElemTab/z74.html
Best regards,
Mikhail
On 21.03.2019 17:07, JONAS OLIVEIRA DA SILVA wrote:
> Dear experts,
>
> I'd like to obtain a filtered X-ray tungsten spectra with FLUKA, but
> I've found some problems with the results.
>
> My basic idea is to use a 120 keV electron beam that interacts with a
> cylindrical tungsten target to generate bremsstrahlung and
> characteristic photons. This spectrum will be filtered with a 1.2 mmAl
> aluminum filter, cylindrical shape, that is located at the end of the
> target. I do not know what is going on because it seems that the
> simulated X-ray photons do not reach the aluminum filter.
>
> The .inp file is attached.
>
> Kind regards,
>
> --
> Prof. Dr. Jonas Oliveira da Silva
> Instituto de Física - UFG
> Telefone: (62) 3521 2320
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Received on Fri Mar 22 2019 - 14:47:51 CET