Re: [fluka-discuss]: heavy ion dose scoring
Dear Roxana,
have a look at notes 4 and 5 for the AUXSCORE entry in the manual:
" 4) Dose conversion coefficients exist only for some particle types:
hadrons, muons, photons, electrons/positrons. For all other
particle types, zero factor will be returned. This is
particularly
important for heavy ions where zero factor will be scored (see
Note 5)
5) For particles such as heavy ions, for which fluence conversion
factors are not available, it is possible to score with USRBIN
the
generalised particle DOSEQLET, i.e. dose equivalent as defined
by
ICRU: H = D x Q(L), where L is the unrestricted Linear Energy
Transfer in water.
"
Perhaps this addresses your issue.
Also, it seems you want to score the dose in the concrete region of your
geometry. If this is the case, I guess that after looking at the geometry
and meshes, the bin size of the meshes may be too large because of which a
high dose could be smeared out. Try to reduce the bin size of the meshes
and localize the mesh to the region of interest or to the region for which
you have the expectation from theory.
Cheers,
-Nikhil
On Fri, Nov 28, 2014 at 12:08 PM, Roxana-georgiana Rata U1179323 <
Roxana.Rata_at_hud.ac.uk> wrote:
>
> Dear FLUKA experts,
>
> I have to simulate a 250 MeV carbon beam hitting a stainless steel pipe
> and to measure the neutron dose equivalent.
> I created my input, my simulation is running perfectly but it seems that
> the neutron dose is to low. In theory I should obtain 29 uSv/h for 1% beam
> loss (2.5x10^7 ions/s)
> Could you, please, check my input and tell me what I'm doing wrong?
>
> Thank you!
>
> Regards,
>
> Roxana
> University of Huddersfield inspiring tomorrow's professionals.
>
>
> This transmission is confidential and may be legally privileged. If you
> receive it in error, please notify us immediately by e-mail and remove it
> from your system. If the content of this e-mail does not relate to the
> business of the University of Huddersfield, then we do not endorse it and
> will accept no liability.
>
Received on Fri Nov 28 2014 - 19:01:03 CET
This archive was generated by hypermail 2.3.0
: Fri Nov 28 2014 - 19:01:04 CET