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Forum: Event and Track Management
Re: None Track and Step ID Confusion
Re: None Re: Track and Step ID Confusion (Makoto Asai)
Date: Jan 07, 22:52
From: <Shams>

Hi Makoto,

That gave me a better insight of what is happening, I appreciate your help!

It turns out that in the step I spoke about, photoelectric absorption is taking place. If I am not wrong 33.164 keV is binding energy of Iodine and a photon with energy 149.14 keV delivers 116 keV to electron (116=149.14-33.164). My interpretation is right? Please see attached text file.

Also, I see "NaI_Scint phot" reflecting photoelectric effect occuring at position (3.82,0.12,-19.6) (Row 7 of tracks2.txt). Then what does "0 and 0.0332" as kinE and dE reflects? I know that the values I should be taking for my interpretation are in Row 8 (149 and 33 keV), but what are "0 and 0.0332" then?

Lastly, why I don't see any StepLeng and TrackLeng in Row 8? How are Row 7 and Row 8 different?

Thanks again!

   Attachment:
      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2019/01/07/22.51-22704-tracks2.txt

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