[Gate-users] Problem Multi Hole Collimator Geometry

[Khalid Hussain]

Dear Gate Users,

Please check the script and geometry of collimator of gamma camera. Its
system spatial resolution is lower then manufacturer.

Problem is in collimator geometry. The zoomed picture of collimator is
given below;  Please check and help

[image: collimator1_4.24.PNG]

[image: collimator2_4.24.PNG]

/gate/collimator/daughters/name hole
/gate/collimator/daughters/insert hexagone
/gate/hole/geometry/setHeight 24.05 mm
/gate/hole/geometry/setRadius  0.555 mm
/gate/hole/placement/setRotationAxis 1 0  0
/gate/hole/placement/setRotationAngle 0 deg
/gate/hole/setMaterial Air
/gate/hole/vis/forceWireframe
/gate/hole/vis/setColor cyan


# FILL THE WHOLE COLLIMATOR WITH SEPTA-HOLE

/gate/hole/repeaters/insert cubicArray
/gate/hole/cubicArray/setRepeatNumberX 465
/gate/hole/cubicArray/setRepeatNumberY 350
/gate/hole/cubicArray/setRepeatNumberZ 1
/gate/hole/cubicArray/setRepeatVector 1.27 1.27 0.0 mm

Thanking you

Regards
Khalid Hussain
PhD Student, UPM
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