<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" style="display:none"></style> </head> <body dir="ltr" style="font-size:12pt;color:#000000;background-color:#FFFFFF;font-family:Calibri,Arial,Helvetica,sans-serif;"> <p>Dear all,<br> </p> <p><br> </p> <p>does anyone knows why even if I move the source the projection (whichever direction XY, YZ, XZ) is always a white dot in the middle of the picture? You can find attached the two images and following you can see my code.<br> </p> <p><br> </p> <p>I hope someone of you could help me!<br> </p> <p><br> </p> <p>Regard,<br> </p> <p>Barbara<br> </p> <p><br> </p> <div>/gate/source/addSource SourceConfinement</div> <div>/gate/source/SourceConfinement/gps/type Volume</div> <div>/gate/source/SourceConfinement/gps/shape Sphere</div> <div>/gate/source/SourceConfinement/gps/radius 0.5 mm</div> <div>/gate/source/SourceConfinement/gps/centre 2. 1. 3. cm</div> <div>/gate/source/SourceConfinement/gps/particle gamma</div> <div>/gate/source/SourceConfinement/gps/energy 140. keV</div> <div>/gate/source/SourceConfinement/setActivity 37000. Bq</div> <div>/gate/source/SourceConfinement/gps/angtype iso</div> <div>/gate/source/SourceConfinement/attachTo Phantom<br> </div> <div><br> </div> <div> <div>/gate/output/projection/enable</div> <div>/gate/output/projection/setFileName BarbaraSPECT</div> <div>/gate/output/projection/pixelSizeX 0.75 mm</div> <div>/gate/output/projection/pixelSizeY 0.75 mm</div> <div>/gate/output/projection/pixelNumberX 240</div> <div>/gate/output/projection/pixelNumberY 180<br> </div> <div>/gate/output/projection/projectionPlane ZX<br> </div> <br> </div> <p><br> </p> <br clear="both"> The Institute of Cancer Research: Royal Cancer Hospital, a charitable Company Limited by Guarantee, Registered in England under Company No. 534147 with its Registered Office at 123 Old Brompton Road, London SW7 3RP.<BR> <BR> This e-mail message is confidential and for use by the addressee only. If the message is received by anyone other than the addressee, please return the message to the sender by replying to it and then delete the message from your computer and network.<BR> </body> </html>