[Gate-users] NCAT Source-phantom

[Simon Stute]

Hi,

I did not understand that this is a systematic error ! in this case it is
not a rounding error, something goes wrong in your simulation definition I
think.
But it is strange that your macro ran fine in Gate4 and not anymore in
Gate5...

2 questions:

 - If you really change nothing in your macro (I mean really nothing) and
you launch it using Gate4, does it work ?
 - which G4 versions are you currently using with Gate4 and Gate5, the same
or different ? and which ?

Cheers,
Simon

On Thu, Jan 21, 2010 at 8:49 PM, Cláudia Régio Brambilla <
claudinha.rb at gmail.com> wrote:

>  Hello,
>
>
>
> Thanks for clarify my question, I didn’t know about this problem in G4. I’m
> using a random seed (auto) and all runs have been  with the same problem.
> What Do you suggest for this problem? Is Just to run many times after bug
> until work? Or Is the best way to change the regular matrix for compress or
> another compatible command?
>
>
>
> Thanks all  for all suggestions
>
>
>
> Best regards
>
>
>
> Cláudia
>
>
>
> *From:* Simon Stute [mailto:gate.stute at gmail.com]
> *Sent:* quinta-feira, 21 de janeiro de 2010 12:31
> *To:* Ida Häggström
> *Cc:* Cláudia Régio Brambilla; gate-users at lists.opengatecollaboration.org
> *Subject:* Re: [Gate-users] NCAT Source-phantom
>
>
>
> Hi all,
>
> This bug comes from the G4PhantomParameterization class of G4 that is used
> when using the G4RegularNavigator (it is the case only when you use the
> regularMatrix object in GATE, it is not possible for other types of
> volumes).
> And unfortunatly it is probably a rounding bug when some particle are
> generated or interact exactly on the phantom border within the distance
> tolerance of G4.
> This bug has been already tracked but no satisfying solution was found !
> And there is nothing related to the version of Gate in this problem.
>
> Just launch again your simulation with another random seed...
>
> Cheers,
> Simon
>
> 2010/1/21 Ida Häggström <ida.haggstrom at radfys.umu.se>
>
> Dear Cláudia,
>
> I've seen that error message myself and have not figured out exactly why it
> appears. I got it when I used a voxelized phantom based on
> "parameterizedBoxMatrix" in Gate 5 (never used Gate 4). When I switched to
> "compressedMatrix" instead, everything else exactly the same, the error
> disappeared. You can give it a go! =) You can also try "regularMatrix".
>
> /Ida
>
>
> 2010/1/20 Cláudia Régio Brambilla <claudinha.rb at gmail.com>
>
> > Hello Gate Users,
> >
> >
> >
> > I was running a simulation with NCAT phantom and this error starts to
> > appear
> > using GATE 5. I usually used the same code in GATE 4 that any errors
> > appeared before.
> >
> > Does anybody know about the error bellow?
> >
> >
> >
> >
> >
> > ERROR - G4PhantomParameterisation::GetReplicaNo()
> >
> >        localPoint - (-1.743113937,-1.77535309,-1.503948302) - is outside
> > container solid: NCAT_S
> >
> >
> >
> > *** G4Exception : InvalidSetup
> >
> >      issued by : G4PhantomParameterisation::GetReplicaNo()
> >
> > Point outside voxels!
> >
> > *** Fatal Error In Argument *** core dump ***
> >
> >
> >
> > *** G4Exception: Aborting execution ***
> >
> > Aborted
> >
> >
> >
> >
> >
> > __________________________________
> >
> >
> >
> > Cláudia Régio Brambilla
> >
> >
> >
> > Física Médica
> >
> > Supervisora de Radioproteção - CNEN FM-0089
> >
> >
> >
> > Mestranda em Clínica Médica - FAMED/PUCRS
> >
> > Grupo de Pesquisa em Imagens Médicas - NIMed - PUCRS
> >
> > TECNOPUC 96A
> >
> >
> >
> > Contato:
> >
> >
> >
> > +55 51 84251368
> >
> > +55 51 3320 3682 ramal 7813
> >
> >
> >
> > _______________________________________________
> > Gate-users mailing list
> > Gate-users at lists.opengatecollaboration.org
> > http://lists.opengatecollaboration.org/mailman/listinfo/gate-users
> >
> _______________________________________________
> Gate-users mailing list
> Gate-users at lists.opengatecollaboration.org
> http://lists.opengatecollaboration.org/mailman/listinfo/gate-users
>
>
>