<html><head><style type="text/css"></style></head><body><div style="font-family:굴림, sans-serif;font-size:10pt"><DIV>Hi, GATE users</DIV> <DIV> </DIV> <DIV>I'm trying to use two kinds of crystal, LSO and BGO </DIV> <DIV>in one layer. I am not willing to use two layers for DOI. </DIV> <DIV>I just want to place them in one layer pixel by pixel. </DIV> <DIV>I could make two daughters of crystals easily. But</DIV> <DIV>the problem is following lines..</DIV> <DIV> </DIV> <DIV>/gate/systems/cylindricalPET/layer0/attach LSO</DIV> <DIV>/gate/systems/cylindricalPET/layer1/attach BGO</DIV> <DIV> </DIV> <DIV>They are in the same layer, but different crystals.</DIV> <DIV>I am wondering if it is possible to simulate two crystals in one layer.</DIV> <DIV> </DIV> <DIV>I will appreciate your responses.</DIV> <DIV> </DIV> <DIV>Seyjoon</DIV> <DIV> </DIV> <DIV> </DIV> <DIV>--------------------------------------------------------</DIV> <DIV>Sungkyunkwan University School of Medicine <BR>Samsung Medical Center Department of Nuclear Medicine</DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV></div><br> <hr size=1> <p style="color:#808080;font:12px dotum;margin:0;"><b>올 한해 고마웠던 사람들에게 메시지 보내고 선물받으세요!</b><br>모두가 행복한 세상이 됩니다. <a href="http://us.rd.yahoo.com/mail_kr/taglines/2007_7thankyou/*http://kr.fun.kids.yahoo.com/funnybox/thankyou.html">UCC 참여하기</a></p></body></html>