[Gate-users] Regarding back-to-back source patch for Eunsin query

[Nicolas GUIGNARD]

*"Hi Eunsin,
Please use this new class in the folder /source/physics/src to correct
this bug.
We will provide an official patch ASAP.
Regards
Seb JAN *
*> Dear Users,
>
> I simulated a cylindrical PET system using point source (back-to-back
gamma) at the center of the detector for a simple study..(with cylindrical
phantom filled with just air).
> If my understanding is correct, coincidence events should have
back-to-back gamma's, which tell us LOR in r-z plane should be simply a
line passing through the center (0,0). In other words Z1+Z2 should be very
close to zero. Below shows actual z position detected for two gammas in
each coincidence events in my simulation output. Looks like something else
is going on...
> Can anybody tell me what's missing?
>
>     Z1                    Z2
> -71.3593 46.7426
> -71.5756 -50.5808
> -71.5233 69.8813
> -71.004 35.5772
> -71.9038 15.7994
> -73.7647 -4.99394
> -71.5314 -11.8862
> -70.284 -12.6473
> -73.0036 63.4071 0
> -71.3191 61.7319 0
> -71.9782 -12.7522
> -72.9756 -68.4205
> -73.9974 39.802
> -73.1717 2.25218
> -71.4347 -44.9677
> -71.7795 -73.2273
> -70.6986 -19.3314
> -73.6817 -7.85506
> -73.5097 -1.3274
> -70.4753 54.6905
>
> Thanks,
> Eunsin"*

*I am referring to this file GateBackToBack.cc which was asked to use in
the above mentioned folder. I am using GATE version5 and using back to back
source. I also having the same issue as of Eunsin.*
*My question is that do we have to recompile the GATE after putting this
file. If so, and I did this but I am getting expected compilation error of
GateBackToBack.hh. When I copy GateBackToBack.hh from GATE version6, it
says other header files are missing and it goes on.*
*So how to solve this issue so that I can use GATE version5.*
**
*Thanks and regards*
*Nicolas*