<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> <title></title> </head> <body bgcolor="#ffffff" text="#000000"> Hi Gaters, I still have problems with the cuts. Basically, I don't want to follow the electrons. I st the following cuts (see part of the macro below) and whatever the cut I set, Gate gives me the same message: WARNING !  SetCutValueForOthers became obsolete.  It is harmless to remove this invokation without any side effects.  This dummy method implementation will be removed soon. G4VRangeToEnergyConverter::ConvertCutToKineticEnergy   for gamma The cut in range [1.000e+00 (mm)]   is too big   for material  idx=2 The cut in energy is set1.798e+305GeV G4VRangeToEnergyConverter::ConvertCutToKineticEnergy   for e- The cut in range [1.000e+06 (mm)]   is too big   for material  idx=2 The cut in energy is set1.798e+305GeV G4VRangeToEnergyConverter::ConvertCutToKineticEnergy   for e+ The cut in range [1.000e+00 (mm)]   is too big   for material  idx=2 The cut in energy is set1.798e+305GeV G4VRangeToEnergyConverter::ConvertCutToKineticEnergy   for e- The cut in range [1.000e+06 (mm)]   is too big   for material  idx=4 The cut in energy is set1.798e+305GeV What am I doing wrong? -- Corinne PS. I did some tests with an analytically defined phantom and the same geometry defined as a voxelized phantom (interfile, 160x160x50 - 1mm/pixel). The run was 6 times longer in the latter, all other simulation parameters were identical... Is that what you're experiencing too? #     D E T E C T O R /gate/world/daughters/name SPECThead /gate/world/daughters/insert box /gate/SPECThead/placement/setTranslation +4.0 -33.0 0. cm /gate/SPECThead/geometry/setXLength 20.0  cm /gate/SPECThead/geometry/setYLength  0.01 cm /gate/SPECThead/geometry/setZLength 25.0  cm #       C R Y S T A L /gate/SPECThead/daughters/name CrystalVolume /gate/SPECThead/daughters/insert box /gate/CrystalVolume/geometry/setXLength 20.0  cm /gate/CrystalVolume/geometry/setYLength  0.01 cm /gate/CrystalVolume/geometry/setZLength 25.0  cm /gate/CrystalVolume/setMaterial Neutronium #       A T T A C H    C R Y S T A L  SD /gate/systems/SPECThead/crystal/attach CrystalVolume /gate/CrystalVolume/attachCrystalSD #       E M  P R O C E S S /gate/physics/gamma/selectRayleigh lowenergy /gate/physics/gamma/selectPhotoelectric lowenergy /gate/physics/gamma/selectCompton lowenergy /gate/physics/setElectronCut 1 km /gate/physics/setXRayCut 3. keV /gate/physics/setDeltaRayCut 1. GeV #       S O U R C E /gate/source/addSource XRay /gate/source/XRay/setActivity 1000000000000 Bq /gate/source/XRay/gps/particle gamma /gate/source/XRay/gps/energy {ENERGY} keV /gate/source/XRay/gps/type Volume /gate/source/XRay/gps/shape Sphere /gate/source/XRay/gps/radius 0. cm /gate/source/XRay/gps/centre -6.0 33.005 0. cm /gate/source/XRay/gps/angtype iso /gate/source/XRay/gps/minphi    90.00 deg /gate/source/XRay/gps/maxphi    97.65 deg /gate/source/XRay/gps/mintheta  82.35 deg /gate/source/XRay/gps/maxtheta  97.65 deg #     L A U N C H /gate/application/setTimeSlice 1. s /run/beamOn {NbrOfXRays} <div class="moz-signature">-- <link rel="important stylesheet" href="chrome://messenger/skin/messageBody.css"> <title>message</title> <div class="moz-text-html" lang="x-western"> <div style="text-align: center;"> <div style="text-align: left;"> <hr style="width: 100%; height: 2px;">Corinne J. Groiselle, PhD </div> <div style="text-align: left; font-family: times new roman,times,serif; color: rgb(102, 102, 102);">Research instructor Division of Nuclear Medicine / Department of Radiology University of Massachusetts Medical School 55 Lake Avenue North Worcester, MA 01655 USA phone: (508)-856-6123 - fax: (508)-856-4572 e-mail: <a class="moz-txt-link-abbreviated" href="mailto:Corinne.Groiselle@umassmed.edu">Corinne.Groiselle@umassmed.edu</a> professional homepage: <a class="moz-txt-link-freetext" href="http://users.umassmed.edu/corinne.groiselle">http://users.umassmed.edu/corinne.groiselle</a> personal homepage: <a class="moz-txt-link-freetext" href="http://corinne.groiselle.free.fr">http://corinne.groiselle.free.fr</a> </div> </div> </div> </div> </body> </html>