[Gate-users] Root question and shielding question

[Adolf Nordin]

I have 2 questions.


  1.  When opening the energy spectrum of Tc99m using root, is there a way to get more data points to get a smooth curve, and not a step curve.
  2.  Back when I started to learn how to simulate a gamma camera, I tried using the SPECT example on gatecontrib. No matter how much I increased the activity and increased the step time, I never got anything when analysing the root file. I suspected there were no photons reaching the crystal, so I removed the shielding and then I started to get results. Is there a problem with the SPECT example that I'm not getting any information? Should the shielding be the same size as the SPECTHEAD?

Thanks,

Adolf
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