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<p>Hi,</p>
<p>I am simulating high energy photon beams (6 and 10 MeV) for external radiotherapy applications.
<br>
</p>
<p>I tried both ("Water" and "G4_WATER") and I am still getting NAN values (only when the absorbed dose is reported as absorbed dose to water). The voxel values between both absorbed dose report (Dose to medium and Dose to water) are also different even though
that the medium is WATER.</p>
<p>Regards, <br>
</p>
<p>Tony<br>
</p>
<br>
<div class="moz-cite-prefix">On 31/01/17 8:37 am, Grevillot Loic wrote:<br>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Which beam are you simulating?
</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D" lang="FR">(photons, electrons, light ions, etc.)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Which water did you define in your simulation? “Water” is different from “GEANT4_WATER” -> could you try using GEANT4_WATER?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1F497D" lang="DE">Best,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:#1F497D" lang="DE">Loïc</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"> Gate-users [<a class="moz-txt-link-freetext" href="mailto:gate-users-bounces@lists.opengatecollaboration.org">mailto:gate-users-bounces@lists.opengatecollaboration.org</a>]
<b>On Behalf Of </b>tony youness<br>
<b>Sent:</b> Monday, January 30, 2017 1:04 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:gate-users@lists.opengatecollaboration.org">
gate-users@lists.opengatecollaboration.org</a><br>
<b>Subject:</b> [Gate-users] Gate dose to water problem<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p>Dear All,<o:p></o:p></p>
<p>I am facing a problem with gate dose actor. When enabling dose to water i get Nan values in some of the voxels in the water region of my phantom. I also get different values in the water voxels between both dose reports (dose to medium and dose to water).
It seems like there's a bug when gate tries to converts dose to medium into the dose to water
<u>when in the water region</u>. Has anyone already faced this problem? Any help would be much appreciated.<o:p></o:p></p>
<p>Kind Regards,<o:p></o:p></p>
<p>Tony Younes<o:p></o:p></p>
<p><o:p> </o:p></p>
<p><o:p> </o:p></p>
<p><o:p> </o:p></p>
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