[Gate-users] spatial blurring error

Samuel BURG samuel_burg at yahoo.fr
Fri Sep 28 18:57:31 CEST 2007


it seems that there is an error with the spatial blurring.
When using blurring modul in the digitizer :

# Spatial Blurring
/gate/digitizer/Singles/insert spblurring
/gate/digitizer/Singles/spblurring/setSpresolution 3.9 mm
/gate/digitizer/Singles/spblurring/verbose 0

gate only blur on X and Y axis, not on Z axis.

have a look at attached pictures from a ROOT post-processing.

The test simulation was very simple :
- cristal, NaI, 20*400*500 mm (x*y*z)
- point source, 140keV, focus toward the cristal :
 /gate/source/Source/gps/mintheta 90. deg
 /gate/source/Source/gps/maxtheta 90. deg
 /gate/source/Source/gps/minphi 180. deg
 /gate/source/Source/gps/maxphi 180. deg

Hardware/System : 
Laptop, intel core2 duo, Linux Fedora 6, x86_64
Gate 3.1.1
I will test if there is the same issue with 3.1.2 monday.

Best regards,

Samuel BURG

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