FLUKA: Re: Gb comments in case of lack EMF

[Dominik Dworak <dworak@alf.ifj.edu.pl>]

 Hi Helmut,
Thank you, your explanation looks sensible.
The problem is that you not always need to develop e-m cascades
(what is usually extremely time consuming).
If you are right the problem can be solved by surrounding the
system by any artificial, external material with max high
energy thresholds for all particles to stop they in place.
But of course, the EMF option has to be switched on anyway.
                           Wishing nice days, Dominik

On Tue, 19 Mar 2002, Helmut Vincke wrote:

> 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