[Gate-users] digitizer module: Noise

[Soeren dittrich]

>
> Hi,
> could you send the part of the macro module containing the
> digitizer... it sounds like the number of random events generated is
> infinite... may be wrong value for the distribution of inter-event
> time interval.
> How did you defined this parameter ?

Hi,

thanx for your answer.
I was simulating an Ecat-System and the part of the macro for the
digitizer was as follows:

#DIGITIZER
/gate/digitizer/Singles/insert adder
/gate/digitizer/Singles/insert readout
/gate/digitizer/Singles/readout/setDepth 1

#ENERGY BLURRING
/gate/digitizer/Singles/insert blurring
/gate/digitizer/Singles/blurring/setResolution 0.19
/gate/digitizer/Singles/blurring/setEnergyOfReference 511. keV

#ENERGY WINDOW
/gate/digitizer/Singles/insert thresholder
/gate/digitizer/Singles/thresholder/setThreshold 350. keV
/gate/digitizer/Singles/insert upholder
/gate/digitizer/Singles/upholder/setUphold 650. keV

#NOISE
/gate/distributions/name energy_distrib
/gate/distributions/insert Gaussian
/gate/distributions/energy_distrib/setMean 500 keV
/gate/distributions/energy_distrib/setSigma 20 keV

/gate/distributions/name dt_distrib
/gate/distributions/insert Exponential
/gate/distributions/dt_distrib/setLambda 7.57 mus

/gate/digitizer/Singles/insert noise
/gate/digitizer/Singles/noise/setDeltaTDistribution dt_distrib
/gate/digitizer/Singles/noise/setEnergyDistribution energy_distrib

#COINCIDENCE SORTER
/gate/digitizer/Coincidences/setWindow 12. ns