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<DIV><FONT face=Verdana color=#000080 size=2>Hi <FONT
color=#000000>Niklas,</FONT></FONT></DIV>
<DIV> </DIV>
<DIV style="TEXT-INDENT: 4em"><SPAN lang=EN-US
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Verdana','sans-serif'; mso-fareast-font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">
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see, thank you very much for your attention.</SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 3em; TEXT-ALIGN: left; mso-pagination: widow-orphan"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Verdana','sans-serif'; mso-fareast-font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"></SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Verdana','sans-serif'; mso-fareast-font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">If I want to simulate the photons generated by scintillation,
is there any way that I can
describe the optical properties of the involved materials?<?xml:namespace
prefix = o ns = "urn:schemas-microsoft-com:office:office"
/><o:p></o:p></SPAN></P>
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help will be appreciated!</SPAN></P>
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size=2></FONT> </DIV>
<DIV><SPAN lang=EN-US
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<DIV><FONT face=Verdana color=#c0c0c0 size=2>2009-08-03 </FONT></DIV><FONT
face=Verdana color=#000080 size=2>
<HR style="WIDTH: 100px" align=left color=#b5c4df SIZE=1>
</FONT>
<DIV><FONT face=Verdana color=#c0c0c0 size=2><SPAN>
<DIV>
<DIV><FONT face=Verdana size=2></FONT>
<DIV><FONT face=Verdana size=2></FONT>
<DIV align=left><FONT face=Calibri color=#808080 size=2>GuoCheng Wu</FONT></DIV>
<DIV align=left><FONT face=Calibri color=#808080 size=2>Software
Department</FONT></DIV>
<DIV align=left><FONT face=Calibri color=#808080></FONT> </DIV>
<DIV align=left><FONT face=Calibri color=#808080 size=2>Neusoft Positron Medical
Systems Co.,Ltd.</FONT></DIV>
<DIV align=left><FONT face=Calibri color=#808080 size=2>No.2 Xin Xiu Street, Hun
Nan New District,<BR>Shenyang 110179, PRC</FONT></DIV>
<DIV align=left><FONT size=2><FONT face=Calibri><FONT color=#808080>Tel:
(86 24) 8366 1980<BR>Fax: (86 24) 8366 1796<BR>Mobile: 136 0403
9065<BR>Email: <U><A
href="mailto:wuguocheng@neusoft.com">wuguocheng@neusoft.com</A></U></FONT></FONT></FONT></DIV>
<DIV align=left><U><FONT face=Calibri color=#808080><A
href="http://www.neusoft.com/">Http://www.neusoft.com</A></FONT></U> </DIV></DIV> </DIV></DIV></SPAN></FONT></DIV>
<HR color=#b5c4df SIZE=1>
<DIV><FONT face=Verdana size=2><STRONG>发件人：</STRONG> Niklas Rehfeld
</FONT></DIV>
<DIV><FONT face=Verdana size=2><STRONG>发送时间：</STRONG> 2009-08-03 16:29:43
</FONT></DIV>
<DIV><FONT face=Verdana size=2><STRONG>收件人：</STRONG> wuguocheng; gate-users
</FONT></DIV>
<DIV><FONT face=Verdana size=2><STRONG>抄送：</STRONG> </FONT></DIV>
<DIV><FONT face=Verdana size=2><STRONG>主题：</STRONG> Re: [Gate-users]
GateMaterialDatabase </FONT></DIV>
<DIV><FONT face=Verdana size=2></FONT> </DIV>
<DIV><FONT face=Verdana size=2>
<DIV>Dear GuoCheng,</DIV>
<DIV></DIV>
<DIV>In GATE photons of high and and of low energy are treated as two different </DIV>
<DIV>particles (gammas and optical photons). Optical photons</DIV>
<DIV>are used to simulate the photons generated by scintillation. If you do not </DIV>
<DIV>want to simulate the photons generated by scintillation, then</DIV>
<DIV>you can safely ignore the warning. Otherwise you must provide a file </DIV>
<DIV>describing the optical properties of the involved materials.</DIV>
<DIV></DIV>
<DIV>All the best</DIV>
<DIV></DIV>
<DIV>Niklas</DIV>
<DIV></DIV>
<DIV></DIV>
<DIV></DIV>
<DIV>On Mon, 03 Aug 2009 05:20:21 +0200, wuguocheng <wuguocheng@neusoft.com> </DIV>
<DIV>wrote:</DIV>
<DIV></DIV>
<DIV>> Hi, gate-users</DIV>
<DIV>></DIV>
<DIV>> when I run the Gate process, but i get some warning messages as </DIV>
<DIV>> follows:</DIV>
<DIV>></DIV>
<DIV>> [GateSystemListManager::CheckScannerAutoCreation:</DIV>
<DIV>> Creating new system based on volume inserter 'cylindricalPET'</DIV>
<DIV>> GateMaterialDatabase: did not load properties table for material </DIV>
<DIV>> 'BGO'.</DIV>
<DIV>> This is only a problem when OPTICAL PHOTONS are transported in this </DIV>
<DIV>> material.'</DIV>
<DIV>> GateMaterialDatabase: did not load properties table for material </DIV>
<DIV>> 'Lead'.</DIV>
<DIV>> This is only a problem when OPTICAL PHOTONS are transported in this </DIV>
<DIV>> material.'</DIV>
<DIV>> GateMaterialDatabase: did not load properties table for material </DIV>
<DIV>> 'Plastic'.</DIV>
<DIV>> This is only a problem when OPTICAL PHOTONS are transported in this </DIV>
<DIV>> material.'</DIV>
<DIV>></DIV>
<DIV>> does anybody can advise me on any of these issues, I would be greatfull.</DIV>
<DIV>></DIV>
<DIV>> Best regards,</DIV>
<DIV>></DIV>
<DIV>> 2009-08-03</DIV>
<DIV>></DIV>
<DIV>> GuoCheng Wu</DIV>
<DIV>> Software Department</DIV></FONT></DIV><pre>---------------------------------------------------------------------------------------------------
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