[Castor-users] Collimator resolution

[tmerlin]

Dear Michael,

Up to now, I haven't heard/read of anyone who did such a translation.

I just wanted to point out that there is the possibility to implement a 
custom collimator model in the code. The model has to be defined as 
"custom" in the geom file, and the implementation could be made in the 
src/scanner/iScannerSPECTConv.cc file, inside the 
ComputeFocalPositions() function (around lines 840 and 916 to compute 
the axial and transaxial focal points respectively). From there, the 
parameters of the model can be accessed.

This feature lacks some flexibility for the moment, but we'll work at 
making it more practical and modular as some other Castor features.

Kind regards,

Thibaut



On 29/03/2018 18:10, Michael Ljungberg wrote:
> Hi
>
> I want to include a geometric Gaussian collimator representation in the Castor reconstruction. Is there anyone that has made a corresponding  translation between a distance-dependent Gaussian and its polynomial castor version and included this in the .geom file?
>
> Thanks,
>
> Best regards
>   
> Michael
>   
> Michael Ljungberg, professor
> Department of Medical Radiaton Physics
> Lund University, Sweden
>
>   
>
>
>
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-- 
Thibaut MERLIN -- PhD

Docteur en Imagerie Médicale au Laboratoire de Traitement de l'Information Medicale (LaTIM - INSERM UMR 1101)
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