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<p class="MsoNormal">Hello all,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am modelling gantry rotation by rotating a phantom around coordinate (0,0,0). I am modelling a full 360 degree phantom rotation in 326 slices. When I use an unvoxelised phantom and regular dose actors this works fine. When I use a voxelised
(.mhd) phantom and the SETLE dose actor @ 10<sup>8</sup><sub> </sub>primaries I get this error at slice ~170:<o:p></o:p></p>
<p class="MsoNormal"><span style="background:silver;mso-highlight:silver">“GateSETLEDoseActor.cc (l.365): Error in GateSETLEDoseActor: Intercept box failed”</span><o:p></o:p></p>
<p class="MsoNormal">Curiously, when I lower the primaries to 10, 100, 1000, 10000 etc. and run the simulation this error does not occur and the simulation runs to completeion.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The phantom volume is contained within a mother volume which is being rotated.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Why would I be getting an intercept error at a higher number of primaries?<o:p></o:p></p>
<p class="MsoNormal">Does anyone know what may be occurring here?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Kind regards,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Luke Gilling<sub><o:p></o:p></sub></p>
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