<div dir="ltr"> <div>should be an issue with volume overlap. It seems from the error message that "SPECThead" is a daughter of "voxPhantom" (and outside), it should not. </div><div> </div><div>David</div><div class="gmail_extra"> <div class="gmail_quote">On Mon, Sep 5, 2016 at 12:33 PM, Francisco Pinto <<a href="mailto:francisco.pinto@surgiceye.com" target="_blank">francisco.pinto@surgiceye.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div lang="EN-GB" link="blue" vlink="purple"> <div> Dear David, Thank you once more for your assistance and your hint regarding MHD! - simulation with vox + source outside the volume (check everything is ok) This fails with a descriptive error message: -------- EEEE ------- G4Exception-START -------- EEEE ------- *** G4Exception : GeomMgt0002 issued by : G4SmartVoxelHeader::BuildNodes() PANIC! - Overlapping daughter with mother volume. Daughter physical volume SPECThead_phys is entirely outside mother logical volume voxPhantom_log !! *** Fatal Exception *** core dump *** The source being inside or outside the bounds of the vox phantom leads to the same outcome: the same crash as described in my initial email. Do you perhaps have further insights? Thank you very much once more! Cheers, Francisco From: David Sarrut [mailto:<a href="mailto:David.Sarrut@creatis.insa-lyon.fr" target="_blank">David.Sarrut@creatis.insa-lyon.fr</a>] Sent: 02 September 2016 08:46 To: Francisco Pinto <<a href="mailto:francisco.pinto@surgiceye.com" target="_blank">francisco.pinto@surgiceye.com</a>> Cc: <a href="mailto:gate-users@lists.opengatecollaboration.org" target="_blank">gate-users@lists.opengatecollaboration.org</a>; Philipp Matthies <<a href="mailto:Philipp.Matthies@surgiceye.com" target="_blank">Philipp.Matthies@surgiceye.com</a>> Subject: Re: [Gate-users] Crashing with a detector nested in a vox phantom<div><div class="h5"> <div> Hello Francisco, <div> </div> <div> does it works if the volumes do not overlap ? Try step by step: </div> <div> - simulation with vox + source outside the volume (check everything is ok) </div> <div> - simulation with vox + source inside the volume (check everything is ok) </div> <div> - simulation with vox + ouside source + outside spect system (check everything is ok) </div> <div> - end with your final goal </div> <div> </div> <div> btw, I recommend to use mhd file format rather than hdr (see wiki). </div> <div> </div> <div> David </div> <div> </div> </div> <div> <div> On Tue, Aug 30, 2016 at 2:10 PM, Francisco Pinto <<a href="mailto:francisco.pinto@surgiceye.com" target="_blank">francisco.pinto@surgiceye.com</a>> wrote: <blockquote style="border:none;border-left:solid #cccccc 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm"> <div> <div> Dear fellow Gate users, I am simulating the current scenario: - A voxelized phantom defined via a CT dataset in Analyze format. - A source placed inside the phantom. - A simple detector aiming towards the source. I would like to overlap the detector with the CT dataset. To this end, I changed the voxelized phantom to an ImageRegionalizedVolume and made my detector its daughter. Sadly, Gate crashes. I’ve narrowed this down the crash to GateCrystalSD::FindSystem(G4String&) – voxPhantom cannot be found. I'm using the latest develop Gate on Ubuntu 16.04, CPU-only single core simulation. All relevant short scripts + CT dataset here (23MB tgz): <a href="https://drive.google.com/open?id=0BzM9gTEQ3DYybEdvR0RoV3I3bzA" target="_blank"> https://drive.google.com/open?id=0BzM9gTEQ3DYybEdvR0RoV3I3bzA</a> Any insights would be much appreciated! Thanks in advance! Cheers, Francisco Francisco Pinto Principal Software Engineer SurgicEye GmbH Tel: +49 89 54 99 89 0 - 21 </div> </div> _______________________________________________ Gate-users mailing list <a href="mailto:Gate-users@lists.opengatecollaboration.org" target="_blank">Gate-users@lists.opengatecollaboration.org</a> <a href="http://lists.opengatecollaboration.org/mailman/listinfo/gate-users" target="_blank">http://lists.opengatecollaboration.org/mailman/listinfo/gate-users</a> </blockquote> </div> <div> </div> -- <div> <div> <div> <div> <div> <div> David Sarrut, Phd Directeur de recherche CNRS CREATIS, UMR CNRS 5220, Inserm U1206 <div> Centre de lutte contre le cancer Léon Bérard 28 rue Laënnec, 69373 Lyon cedex 08 Tel : <a href="tel:04%2078%2078%2051%2051" value="+33478785151" target="_blank">04 78 78 51 51</a> / <a href="tel:06%2074%2072%2005%2042" value="+33674720542" target="_blank">06 74 72 05 42</a> <a href="http://www.creatis.insa-lyon.fr/~dsarrut" target="_blank">http://www.creatis.insa-lyon.fr/~dsarrut</a> _________________________________ </div> <div> "2 + 2 = 5, for extremely large values of 2" _________________________________ </div> </div> </div> </div> </div> </div> </div> </div> </div></div></div> </div> </blockquote></div> <div> </div>-- <div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">David Sarrut, Phd Directeur de recherche CNRS CREATIS, UMR CNRS 5220, Inserm U1206<div>Centre de lutte contre le cancer Léon Bérard 28 rue Laënnec, 69373 Lyon cedex 08 Tel : 04 78 78 51 51 / 06 74 72 05 42 <a href="http://www.creatis.insa-lyon.fr/~dsarrut" target="_blank">http://www.creatis.insa-lyon.fr/~dsarrut</a> _________________________________</div><div> "2 + 2 = 5, for extremely large values of 2" _________________________________</div></div></div></div></div></div></div> </div></div>