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<p class="MsoNormal">Updating my own questions <span style="font-family:"Segoe UI Emoji",sans-serif">
š</span> <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">For point 1, rebinning the histogram so that it for example uses 400 points instead of the default 100 points, I get the desired energy spectrum.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="mso-fareast-language:EN-ZA">From:</span></b><span lang="EN-US" style="mso-fareast-language:EN-ZA"> Gate-users <gate-users-bounces@lists.opengatecollaboration.org>
<b>On Behalf Of </b>Adolf Nordin<br>
<b>Sent:</b> Monday, 05 November 2018 3:08 PM<br>
<b>To:</b> gate-users@lists.opengatecollaboration.org<br>
<b>Subject:</b> [Gate-users] Root question and shielding question<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have 2 questions.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo3">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.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo3">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 Iām not getting any information? Should
the shielding be the same size as the SPECTHEAD?<o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Adolf <o:p></o:p></p>
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