[Gate-users] TLE/seTLE Dose actors compatible with a linear motion of source ?

[Pierre Tb]

Hi François,

Thanks for your reply.

I think my errors are not linked with an actor or an other, or again the
motion of my source; because when I start simulation with classical
doseActor, I obtain  same bugs of my first conversation.
See attached my macro concerning the actors.

Maybe, there is some problem concerning my settings of physics :












*###Physics list #########################  /gate/physics/addPhysicsList
emlivermore #/gate/physics/addAtomDeexcitation  /gate/physics/processList
Enabled /gate/physics/processList Initialized
 /gate/physics/Gamma/SetCutInRegion      world 500 um
/gate/physics/Electron/SetCutInRegion   world 500 um
/gate/physics/SetMinKineticEnergyInRegion world 10 keV
/gate/physics/ActivateSpecialCuts e-*


Or maybe it's coming from the material density calculation of my
phantom and the hounsfield generator ?

You are talking about energy absorption coefficients ?

Thank you for your precisions concerning the seTLE resolution.

Best regards

Pierre

2015-05-21 12:33 GMT+01:00 Francois Smekens <fsmekens at gmail.com>:

> Hi Pierre,
>
> As the TLE is very similar to the classical doseActor, I can only suppose
> that the problem comes from the energy absorption coefficients.
> But before, what is the result with a classical doseActor ? Can you show
> us the macro concerning the actors ?
>
> As far as I know, the */gate/geometry/update* command should only be
> called in the graphical interface (QT for example) in order to refresh the
> geometry after a modification.
> Is anyone can confirm this ?
>
> Concerning the resolution of the seTLE actor, your results are totally
> normal ! The seTLE resolution and voxel size are directly extracted from
> your attached volume.
> This is due to the use of raytracing in the seTLE method that needs a dose
> grid corresponding to this volume.
> At this moment, the only way to change the resolution or/and voxel size is
> to resample your volume.
>
> Best regards,
> François
>
>
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