<div> </div> <div>According to my knowlege,</div> <div> </div> <div>-1RC means that what you sent to the surface e.g 5000 optical photon, they (all photons) can pass through the selected surface type. It means that non of the photons are reclected of or absorbed by the on the surface. </div> <div> </div> <div>best regards,</div> <div> </div> <div>sebnem erturk<br> <br></div> <div class="gmail_quote">On Dec 21, 2007 5:10 AM, green light <<a href="mailto:green.light200712@gmail.com">green.light200712@gmail.com</a>> wrote:<br> <blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Dear gaters:<br>     In DETECT2000,there is surface finish parameter"RC".For example,"POLISH 0.98RC".<br>     My question is that:When 0.98RC is omitted ,the default value of RC is -1.Then what is the meaning of "-1RC".    <br>     Is the definition of RC just the same as in physics optics?<br>     I'll appreciate for your help. <br><br><br>_______________________________________________<br>Gate-users mailing list<br><a href="mailto:Gate-users@lists.healthgrid.org">Gate-users@lists.healthgrid.org</a><br><a href="http://lists.healthgrid.org/mailman/listinfo/gate-users" target="_blank"> http://lists.healthgrid.org/mailman/listinfo/gate-users</a><br><br></blockquote></div><br>