[Gate-users] digitizer

[Pietrzyk, Uwe]

Hello Zeinab Telikani,

in fact, there are options to be set in the digitiser part.
You may have a look at the benchmark for SPECT,
where the following lines are copied from:


# D I G I T I Z E R
#####
# The digitizer tracks what happens in the detection system and in the electronics
# Build a digitizer that first computes the centroid of interactions
##
/gate/digitizer/Singles/insert adder
/gate/digitizer/Singles/insert blurring
/gate/digitizer/Singles/blurring/setLaw linear
/gate/digitizer/Singles/blurring/linear/setResolution 0.10
/gate/digitizer/Singles/blurring/linear/setEnergyOfReference 140. keV
/gate/digitizer/Singles/blurring/linear/setSlope 0.001 1/keV
/gate/digitizer/Singles/insert spblurring
/gate/digitizer/Singles/spblurring/setSpresolution 2.0 mm
/gate/digitizer/Singles/spblurring/verbose 0
/gate/digitizer/Singles/insert thresholder
/gate/digitizer/Singles/thresholder/setThreshold 20. keV
/gate/digitizer/Singles/insert upholder
/gate/digitizer/Singles/upholder/setUphold 190. keV

also, there is an example for SPECT you can find in every GATE
distribution. 

I hope this helps!

Kind regards,

Uwe Pietrzyk


/----------------------------------------------------------------------
Prof. Dr. Uwe Pietrzyk
Diplom-Physiker
Institut für Neurowissenschaften und Medizin / INM-4
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On 08 Mar 2017, at 12:06, zeinab TELIKANI <telikani_z at yahoo.com> wrote:

> Hi
> I want to simulate a SPECT camera, but I do not know the amount of energy resolution and local blurring of this camera for different crystals and collimators. How can I define resolution and spatial blurring in digitizer?
> /gate/digitizer/Singles/blurring/inverseSquare/setResolution  ( for different crystals ???)
> /gate/digitizer/Singles/blurring/inverseSquare/setEnergyOfReference 140 keV
> /gate/digitizer/Singles/spblurring/setSpResolution (for different collimators???)
> 
>  
> Is it necessary to define these Command lines in digitizer for gate simulation?
> _______________________________________________
> Gate-users mailing list
> Gate-users at lists.opengatecollaboration.org
> http://lists.opengatecollaboration.org/mailman/listinfo/gate-users

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