Hello Gaters,<br><br>I've been trying to set a background source distribution for a NEMA phantom which has a complicated shape, so I tried using forbid and confine command.<br>But it didn't go well, it only gave me tons of errors and breaks, so now I'm using randomly placed multiple point sources to imitate the background source.<br>
<br>Another question arises here; how many sources GATE can handle? When I ran a simulation with more than 10000 point sources, it seems to be frozen upon reading the source part.<br>A part of my source macro is given below, and it goes on for 10000 times.<br>
Should I use voxelized source instead?<br>Or, is there any way to set a background source activity for a given volume?<br><br>Thanks in advance.<br><br>Taku<br><br>------<br>system:<br>MacOS10.7.5<br>GATE6.1<br><br>/gate/source/addSource 1<br>
/gate/source/1/gps/centre -4.71928 -14.9742 1.68563 cm<br>/gate/source/1/setActivity 5000. becquerel<br>/gate/source/1/gps/particle e+<br>/gate/source/1/gps/energytype Fluor18<br>/gate/source/1/gps/angtype iso<br>
/gate/source/1/setForcedUnstableFlag true<br>/gate/source/1/setForcedHalfLife 6586 s<br>/gate/source/1/gps/type Point<br><br>/gate/source/addSource 2<br>/gate/source/2/gps/centre -8.4103 0.36047 -16.3684 cm<br>
/gate/source/2/setActivity 5000. becquerel<br>/gate/source/2/gps/particle e+<br>/gate/source/2/gps/energytype Fluor18<br>/gate/source/2/gps/angtype iso<br>/gate/source/2/setForcedUnstableFlag true<br>/gate/source/2/setForcedHalfLife 6586 s<br>
/gate/source/2/gps/type Point<br clear="all"><br>and so on...<br><br>-- <br>Hokkaido University, Graduate school of medicine, medical physics and engineering D1<br>北海道大学 大学院 医学研瘢雹究科 医学物理工学分野 D1<br>Taku Yamanaka<br>山中 琢<br>
<br><a href="mailto:takuyama@med.hokudai.ac.jp" target="_blank">takuyama@med.hokudai.ac.jp</a><br>--