<html>
<head>
<style><!--
.hmmessage P
{
margin:0px;
padding:0px
}
body.hmmessage
{
font-size: 12pt;
font-family:Calibri
}
--></style></head>
<body class='hmmessage'><div dir='ltr'>Hi Gaters,<br><font style="font-size: 12pt;" face="Calibri" size="3"><span style="font-size:12pt;"><span dir="ltr">i made a case very simplified of simulation without forbid comand but the reconstruction is a little strange! <br><br></span></span></font><div id="inlineImage0" style="display: inline-block"><script type="jsv#913_"></script> <span contenteditable="true"> </span> <div initwidth="698" initheight="389" class="inlineImage" style="display: inline-block" unselectable="on" contenteditable="false"><img src="cid:inlineImage0" height="389" width="698"></div> <span contenteditable="true"> </span><script type="jsv/913_"></script></div><font style="font-size: 12pt;" face="Calibri" size="3"><span style="font-size:12pt;"><span dir="ltr"><br></span></span></font>It's only rectangular source (as background) and two spheres of 10 and
13 mm of diameter, but shape according to image is circular and no
rectangular.<br>The output that i have to reconstruct the image is through sinograms to use STIR later. <br>My code is only the following:<br><br>/gate/world/daughters/name phantom4<br>/gate/world/daughters/insert box<br>/gate/phantom4/geometry/setXLength 14. cm<br><div dir="ltr">/gate/phantom4/geometry/<wbr>setYLength 8.3 cm<br>/gate/phantom4/geometry/<wbr>setZLength 21.5 cm<br>/gate/phantom4/placement/<wbr>setTranslation 0.0 -7.65 0.0 cm<br>/gate/phantom4/setMaterial Air<br>/gate/phantom4/attachPhantomSD<br><br># SOURCES:<br># Background<br>/gate/source/addSource twogamma<br>/gate/source/twogamma/<wbr>setActivity 90 MBq<br>/gate/source/twogamma/setType backtoback<br>/gate/source/twogamma/gps/<wbr>particle gamma<br>/gate/source/twogamma/gps/<wbr>energytype Mono<br>/gate/source/twogamma/gps/<wbr>monoenergy 0.511 MeV<br>/gate/source/twogamma/gps/type Volume<br>/gate/source/twogamma/gps/<wbr>shape Para<br>/gate/source/twogamma/gps/<wbr>halfx 7 cm<br>/gate/source/twogamma/gps/<wbr>halfy 3.85 cm<br>/gate/source/twogamma/gps/<wbr>halfz 10.15 cm<br>/gate/source/twogamma/gps/<wbr>centre 0. -7.35 0. cm<br>/gate/source/twogamma/gps/<wbr>angtype iso<br>/gate/source/twogamma/gps/<wbr>mintheta 0. deg<br>/gate/source/twogamma/gps/<wbr>maxtheta 180. deg<br>/gate/source/twogamma/gps/<wbr>minphi 0. deg<br>/gate/source/twogamma/gps/<wbr>maxphi 360. deg<br>/gate/source/list<br><br># Sphere 10mm diameter:<br>/gate/source/addSource 10mm<br>/gate/source/10mm/setActivity 200 MBq <br>/gate/source/10mm/setType backtoback<br>/gate/source/10mm/gps/particle gamma<br>/gate/source/10mm/gps/<wbr>energytype Mono<br>/gate/source/10mm/gps/<wbr>monoenergy 0.511 MeV<br>/gate/source/10mm/gps/type Volume<br>/gate/source/10mm/gps/shape Sphere<br>/gate/source/10mm/gps/radius <wbr> 0.5 cm<br>/gate/source/10mm/gps/centre <wbr> -2.86 -4.954 0. cm<br>/gate/source/10mm/gps/angtype <wbr> iso<br>/gate/source/10mm/gps/<wbr>mintheta 0. deg<br>/gate/source/10mm/gps/<wbr>maxtheta 180. deg<br>/gate/source/10mm/gps/minphi <wbr> 0. deg<br>/gate/source/10mm/gps/maxphi <wbr> 360. deg<br>/gate/source/list<br><br># Sphere 13 mm diameter:<br>/gate/source/addSource 13mm<br>/gate/source/13mm/setActivity 200 MBq <br>/gate/source/13mm/setType backtoback<br>/gate/source/13mm/gps/particle gamma<br>/gate/source/13mm/gps/<wbr>energytype Mono<br>/gate/source/13mm/gps/<wbr>monoenergy 0.511 MeV<br>/gate/source/13mm/gps/type Volume<br>/gate/source/13mm/gps/shape Sphere<br>/gate/source/13mm/gps/radius <wbr> 0.65 cm<br>/gate/source/13mm/gps/centre <wbr> 2.86 -4.954 0. cm<br>/gate/source/13mm/gps/angtype <wbr> iso<br>/gate/source/13mm/gps/<wbr>mintheta 0. deg<br>/gate/source/13mm/gps/<wbr>maxtheta 180. deg<br>/gate/source/13mm/gps/minphi <wbr> 0. deg<br>/gate/source/13mm/gps/maxphi <wbr> 360. deg<br>/gate/source/list</div><br><br>Do you know what can it happen?<br>Thanks in advance!!<br><br> </div></body>
</html>