<div dir="ltr"><div class="gmail_default" style="font-family:georgia,serif;font-size:large"><div class="gmail_default">Dear all,</div><div class="gmail_default"><br></div><div class="gmail_default">Is it possible to create a 100% stopping surface for r rays in GATE, which acts the same as the edge of the "world"? If possible, then how? Many thanks.</div><div class="gmail_default"></div><div style="font-family:arial,sans-serif;font-size:14px"><br></div><div class="gmail_default">Cheers,</div></div><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><p><i><span style="font-family:georgia,serif"><font size="4"><span lang="EN-US">Hancong Xu</span></font></span></i></p><p><font size="2"><span><font face="Times New Roman"><i>Institution of Neuroscience and Medicine (INM4)</i></font></span></font><font face="Times New Roman"><i><font size="2"><br></font></i></font></p><p><font face="Times New Roman"><i><font size="2">Forschungzentrum Juelich, Germany</font><br></i></font></p></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
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