<DIV><FONT face="times new roman" size=3>Hi All,</FONT></DIV> <DIV><FONT face="times new roman" size=3></FONT> </DIV> <DIV><FONT face="times new roman" size=3>I am new user trying to model new detector materials for emission tomography.</FONT></DIV> <DIV><FONT face="times new roman" size=3></FONT> </DIV> <DIV><FONT face="times new roman" size=3>It is compound material AB4:(10%C) for instance, </FONT><FONT face="times new roman" size=3>where this material is doped with 10% C . I have read about defining new compound and materials but it is not completely clear how I can use </FONT><FONT face="times new roman" size=3>GateMaterials.db file as it is allowed to me to change the name of element and number of atoms. </FONT><FONT face="times new roman" size=3>What about specifying 10% of C element for example?</FONT></DIV> <DIV align=left><FONT face="times new roman" size=3></FONT> </DIV> <DIV align=left><FONT face="times new roman"
size=3>Has anyone come cross these things?</FONT></DIV> <DIV align=left><FONT face="times new roman" size=3></FONT> </DIV> <DIV align=left><FONT face="times new roman" size=3>Best wishes</FONT></DIV> <DIV align=left><FONT face="Times New Roman" size=3></FONT> </DIV> <DIV align=left><FONT face="Times New Roman" size=3>Karine</FONT></DIV><p> 
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