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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hey,
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<div>In Gate, a source can be specified by using "ion source", which takes Atomic number, Atomic weight Ionic Charge, and excitation energy as arguments. I was wondering how accurately this ion-source models the energy distribution of the isotope. Does it
model most of the energy peaks? Can anyone point to me the right documentation in Geant4?</div>
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<div>The reason I am asking this question is that I am trying to model all the energies which gets emitted from I-123 source. I was manually specifying energy distribution using histogram keyword to model I123 source energy distribution. I was wondering whether
using ion-source to rely on Gate to specify energy distribution automatically is more accurate.</div>
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<div>Thanks,<br>
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<div class="PlainText">Sanghyeb(Sam) Lee<br>
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Department of Electrical Engineering and Computer Science<br>
University of Tennessee, Knoxville<br>
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