<html><head></head><body><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div><div><span style="color: rgb(38, 40, 42);">Dear gate-users,</span><br></div></div><div id="ydpae06a5a3yahoo_quoted_2808087352" class="ydpae06a5a3yahoo_quoted"><div style="font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;font-size:13px;color:#26282a;"><div><div id="ydpae06a5a3yiv7642817559"><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div><div style="color:rgb(38, 40, 42);">I want to put Ga-68 as the source of activity for internal dosimetry. It is a positron emitter with<span style="color:rgb(34, 34, 34);font-size:15px;"> multiple radiation type</span> such as gamma emission and electron capture. Can you help me how can I define such sources in my voxelizedsource? Or is there somewhere in GATE that I can define Ga-68?</div><div style="color:rgb(38, 40, 42);">Thanks in advance, </div></div><div><br></div><div class="ydpae06a5a3yiv7642817559ydpf1858611signature">Maryam Fallahpoor<br>E-mail: maryam.fallahpoor@yahoo.com</div></div></div></div></div></div></div></body></html>