[Gate-users] focused collimator (fan beam collimator)

[Wei ZHAO]

Dear All,


Right now I am trying to model a focused collimator with GATE, namely, a collimator with fan-beam septal. It seems the built-in script does not work. 
Is there anyone has the experience to model a fan beam collimator? Could you please tell me how to model it in GATE?
Thank you very much! 


Best regards
Wei.
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/gate/SPECThead/daughters/name fanbeam
/gate/SPECThead/daughters/insert collimator


/gate/fanbeam/setMaterial Lead 
/gate/fanbeam/geometry/setDimensionY 53.5 cm
/gate/fanbeam/geometry/setDimensionX 25.0 cm


/gate/fanbeam/geometry/setFocalDistanceY 0.0 cm
/gate/fanbeam/geometry/setFocalDistanceX 35.0 cm


/gate/fanbeam/geometry/setHeight 5.8 cm


/gate/fanbeam/geometry/setSeptalThickness 0.8 cm


/gate/fanbeam/geometry/setInnerRadius 1.70 cm
/gate/fanbeam/placement/setRotationAxis 0 0 1
/gate/fanbeam/placement/setRotationAngle -90 deg
/gate/fanbeam/vis/setColor blue
/gate/fanbeam/vis/forceWireframe
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