RE: Re: Can FLUKA (or flair ) be used to caculate region volumes?

Hi Jean-Emmanuel,

I don't know how does MCNP calculate the volumes. Do you have any information
about it?

Alberto

On Fri, 13 Apr 2012, Jean-Emmanuel Groetz wrote:

> Dear all,
>
> In addition to previous messages from Mina and Chris, volume calculation
> could still remain a problem:
> - for FLUKA/FLAIR users with Linux OS, SimpleGeo works very well with
> Windows under the VirtualBox software, without any difficulty. The
> geometry file could be imported between both OS through shared folders
> - once before with a complex geometry (concentric spheres and tori),
> MCNP was unable to assess the region volume for an energy deposition
> tally. So I had to calculate every region volume...
>
> The method described by Anna (from Alberto) seems to be neat.
>
> Jean-Emmanuel
>
>
>> Dear Walker,
>> SimpleGeo offers two kinds of volume calcultions. The one is called
>> "geometric" and uses the visualized and as such
>> discretized geometry. As a consequence it is very fast but might
>> fail in case of
>> rendering artefacts. There is another one which is called "Quasi
>> Monte Carlo" which calculates the volume integral by using stratified
>> numerical sequences which act on the analytic description of the geometry.
>> Therefore, this method also works in the presence of rendering artefacts.
>> If you are looking for the functionality to calculate volumes of arbitrary
>> regions directly in your input, like it is provided for example in MCNP(X),
>> then I'm afraid that FLUKA itself does not provide such a feature
>> - at least not to my present knowledge. Eventually you can do it but you
>> will need to do a bit of programming or set up a specific geometry, input
>> and post-processing to achieve this.
>> Hope that helps
>> Chris
>> --------------------------------------------------------------------------=
> --------------
>> Chris Theis
>> CERN/DGS-RP - European Organization for Nuclear Research
>> 1211 Geneva 23, Switzerland
>> Phone: +41 22 767 8069 Office: 892-2A-015
>> e-mail: Christian.Theis_at_cern.ch<mailto:Christian.Theis_at_cern.ch>
>> www: http://www.cern.ch/theis
>> --------------------------------------------------------------------------=
> ---------------
>>
>>
>
> ________________________________________________
> Jean-Emmanuel Groetz
> Laboratoire Chrono-Environnement UMR CNRS 6249
> Chimie Physique & Rayonnements
> Universit=E9 de Franche-Comt=E9
> 16, route de Gray
> F-25030 Besan=E7on Cedex
>
> mailto: jegroetz_at_univ-fcomte.fr
> Phone: +33 3 81 66 65 07
> Fax: +33 3 81 66 65 22
> ________________________________________________
>
>

-- 
Alberto Fassò
CERN-EP/AIP, CH-1211 Geneve 23 (Switzerland)
Phone: (41 22) 767 2398    Fax: (41 22) 767 9480   Alberto.Fasso_at_cern.ch
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