<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:16px"><div><span></span></div><div></div><div id="yui_3_16_0_1_1424619594492_7393" dir="ltr"> Dear Gater</div><div id="yui_3_16_0_1_1424619594492_18007" dir="ltr"><br></div><div id="yui_3_16_0_1_1424619594492_18008" dir="ltr">i have a problem to add a new source to the benchPET instead of the standard sources (F-18 and O-15), i wrote all information about the new source in macro file , this new source emits tow gamma photon (511 KeV) and another single gamma photon<br> but i got an error message IT IS NOT DEFINE</div><div id="yui_3_16_0_1_1424619594492_18012" dir="ltr">how can i define new source in Gate?</div><div id="yui_3_16_0_1_1424619594492_18035" dir="ltr"><br></div><div id="yui_3_16_0_1_1424619594492_18036" dir="ltr">regards </div><div class="signature" id="yui_3_16_0_1_1424619594492_7424"><blockquote id="yui_3_16_0_1_1424619594492_17995" style="margin-right: 0px;" dir="ltr"><div align="center" id="yui_3_16_0_1_1424619594492_17994"><font id="yui_3_16_0_1_1424619594492_18018" color="#451528" face="comic sans ms" size="6" style="background-color: rgb(216, 165, 187);"><strong id="yui_3_16_0_1_1424619594492_18017">ÇáãÓÊÞÈá ãáß áÃÕÍÇÈ ÇáÃÍáÇã ÇáÌãíáÉ ..</strong></font></div></blockquote> <div align="center" id="yui_3_16_0_1_1424619594492_7423"><strong><font color="#451528" face="Comic Sans MS" size="6" style="background-color: rgb(216, 165, 187);"></font></strong> </div></div></div></body></html>