[Gate-users] SpekCalc vs GATE x-ray energy spectrum

[Emmanuel Marfo]

Hi GATE users,

Find attached file 'SpekCalc vs GATE x-ray energy spectrum' which compares the two spectrums. My problem is the  GATE characteristics spectrum is shifted to the right a bit when compared to the characteristics energy spectrum from SpekCalc. Please, I want to know how I can make it align with that of spekcalc. I used the energyspectrum actor definition below

### E N E R G Y S P E C T R U M ######
######################################
/gate/actor/addActor             EnergySpectrumActor espectrum
/gate/actor/espectrum/attachTo   phantom
/gate/actor/espectrum/save     Desktop/PHDthesisGATE/MARFO2017/ModellingX-raytube/XraytubeCU/output/cylinderespectrum.root
/gate/actor/espectrum/addFilter particleFilter
/gate/actor/espectrum/particleFilter/addParticle gamma
/gate/actor/espectrum/energySpectrum/setEmin           0 eV
/gate/actor/espectrum/energySpectrum/setEmax           0.12 MeV
/gate/actor/espectrum/energySpectrum/setNumberOfBins   120
/gate/actor/espectrum/energyLossHisto/setEmin          0 eV
/gate/actor/espectrum/energyLossHisto/setEmax          0.12 MeV
/gate/actor/espectrum/energyLossHisto/setNumberOfBins  120

Thanks

Best regards,

Emmanuel Marfo

University of Otago

Student
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