[Gate-users] Error message during simulation.

[Edoardo Pasca]

On Thu, 2009-01-29 at 15:40 +0100, Edoardo Pasca wrote:
> Hi all,
> 
> I am running a slightly modified version of the full_simulation example,
> and I get a whole bunch of this messages:
> 
> C is too big to make the ID : C = 61 Max < 29

Even though I didn't exactly figured out what this message means, I
figured out what it is about: 29 is the number of crystal along the Z
direction of the detector. Now, that message is saying something like
"the event happened outside the crystal".

Anyhow, I checked how I designed the detector of type cylindricalPET: 
1) create rsector
2) move it to 0 N 0 mm
3) create crystals
4) create layer
5) apply the repeater
6) attach the pieces

This is different, on the point 2, from what always described on the
manual: during design, on the manual, the shift goes on the X direction,
rather than on the Y.
As a matter of facts I also noticed that the output
of  /gate/systems/cylindricalPET/describe gave me a negative radius of
the scanner, which was highly suspicious.

I just changed point 2 and shifted the rsector to N 0 0 mm and now the
simulation goes fine. 

I guess that this is somehow a bug, because there shouldn't be
dependence on that kind of shift. 

My best

Edoardo

> 
> I checked the original example does not show that message. What did I do
> wrong? What is C?
> 
> Thanks for any help
> 
> Edoardo