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<DIV><FONT face=Arial color=#000000 size=2>Hi,</FONT></DIV>
<DIV><FONT face=Arial size=2>I am trying to use the V-cavity component (Pol_guide_vmirror).</FONT></DIV>
<DIV><FONT face=Arial size=2>Below are the parameters of the component:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial>COMPONENT Cavite = Pol_guide_vmirror (</FONT></DIV>
<DIV><FONT face=Arial> xw = 0.025, yh = 0.025, </FONT></DIV>
<DIV><FONT face=Arial> length = 1, </FONT></DIV>
<DIV><FONT face=Arial> rPar ={.99, 1.0*0.0219, 6.07, 1, 0.003},</FONT></DIV>
<DIV><FONT face=Arial> rUpPar ={.99, 2.0*0.0219, 6.07, 1, 0.003},</FONT></DIV>
<DIV><FONT face=Arial> rDownPar={.99, 0.4*0.0219, 6.07, 1, 0.003}<BR> ) <BR> AT (0, 0, .501) RELATIVE previous</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>When i trace the instrument, the V wafers is shifted on the z axis (the neutron axis) by half its length.</FONT></DIV>
<DIV><FONT face=Arial size=2>Therefore the guide and the V's are both 1 m long with the wafers going out of the guide body.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I cannot figure out wether this is simply a tracing mistake or the code also misbehaves (or i badly gave the parameters - always an option!).</FONT></DIV>
<DIV><FONT face=Arial size=2>Any comment welcome.</FONT></DIV>
<DIV><FONT face=Arial size=2>Regards,</FONT></DIV>
<DIV><FONT face=Arial size=2>Sylvain Désert</FONT></DIV></BODY></HTML>