Re: FLUKA: LINUX FLUKA at the main FLUKA www page is obsolete ...etc.

[Helmut Vincke <Helmut.Vincke@cern.ch>]

Hi,

I think the situation is as follows.
If a particle is decaying into an electron, positron or gamma then it is 
dumped
on the spot of its formation in case EMF is switched off. If this particle
decays in material, FLUKA does not complain. In case it decays in vacuum FLUKA
complains since it does not make sense to have energy deposits in vacuum. For
example if  you have a lot of muons decaying in a vacuum region into 
electron+mu
neutrino+electron neutrino. The electron is dumped in this vacuum and the 
energy
deposition in this vacuum region is increased by the energy of the electron.
Since this deposition in vacuum is not really logic FLUKA complains.
It would certainly help to transport those particle to the next material
boundary in order to dump them there or just to remove this error message. 
Both
can be done only by the authors.

If EMF is switched on this message disappears because those particles
responsible for this deposit are further transported.

Cheers,  Helmut

Dominik Dworak wrote:

>  Hi Alfredo,
> I'm informing you as in the Subject. Of course, this obstacle can be
> omit by changing current date in the system but I understand that it
> is only temporary solution. So, please ...
>
> Another problem. When the EMF option is not present in the input
> FLUKA starts produce GIGABYTES (really) comments in files *.out,
> *.err, and also in additional user files (where RESIDUAL nuclei
> are scored - this is my case). All these comments look like:
>
>    DEPOSIT. IN VACUUM HERE
>    IJ,XA,YA,ZA,MREG,RULL,ICALL,LLO,ECONTR,ICNTR 211 -4895.47671  1702.95674
>   168984.748 105  0.118897342 504 7  0.118897342 0
>    JTRACK,NTRACK,XTRACK(0),YTRACK(0),ZTRACK(0) 3 0 -4895.47671  1702.95674
>   168984.748
>    ETRACK,MTRACK,XTRACK(NTRACK),YTRACK(NTRACK),ZTRACK(NTRACK)  0.119408341 0
>  -4895.47671  1702.95674  168984.748
>    DEPOSIT. IN VACUUM HERE
>    IJ,XA,YA,ZA,MREG,RULL,ICALL,LLO,ECONTR,ICNTR 211 -74655.1571 -98570.0208
>   418425.08 105  0.13335228 504 7  0.13335228 0
>   ... etc.
>
> It was going to fill whole 40 Gb of my disk space, fortunately I kept
> my eyes open. When I switched the EMF on again (and NOTHING MORE)
> this effect disappeared. I'm using the new EVAP subroutine, maybe this is
> the case ?
>                                              Dominik