<div dir="ltr"><div><div>Hi,<br></div>I use the GateFluenceActor for this. Here is an example for a plane:<br><br>/gate/world/daughters/name                              DetectorPlane<br>/gate/world/daughters/insert                              box<br>/gate/DetectorPlane/geometry/setXLength        1024 mm<br>/gate/DetectorPlane/geometry/setYLength        1024 mm<br>/gate/DetectorPlane/geometry/setZLength        1 nm<br>/gate/DetectorPlane/placement/setTranslation   0 0 -536 mm<br>/gate/DetectorPlane/setMaterial                         Air<br><br>/gate/actor/addActor FluenceActor                    DetectorActor<br>/gate/actor/DetectorActor/save                          output/fluence.mha<br>/gate/actor/DetectorActor/attachTo                    DetectorPlane<br>/gate/actor/DetectorActor/stepHitType               pre<br>/gate/actor/DetectorActor/setResolution            256 256 1<br><br>Simon<br></div><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Aug 7, 2015 at 4:21 PM, Alex Vergara Gil <span dir="ltr"><<a href="mailto:alexvergaragil@gmail.com" target="_blank">alexvergaragil@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear Gaters<br>
<br>
I wonder if there is an actor to register the photon flux crossing a<br>
seurface. How can I proceed?<br>
<br>
Regards<br>
<br>
Alex<br>
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</blockquote></div><br></div>