<div>Hi Dave,<br></div>
<div class="gmail_quote">On Fri, Apr 23, 2010 at 12:05 PM, Lamiaa El Fassi <<a href="mailto:lamiomar@gmail.com">lamiomar@gmail.com</a>> wrote:<br>
<blockquote class="gmail_quote">Hi Dave, <br clear="all"><br>
<div class="gmail_quote">
<div class="im">On Fri, Apr 23, 2010 at 11:02 AM, David Flay <<a href="mailto:flay@jlab.org">flay@jlab.org</a>> wrote:<br>
<blockquote class="gmail_quote">Hi all,<br><br>I've been searching around trying to find information on the carbon foils<br>used during optics runs -- their separation distance, etc. and I cannot<br>
find such information anywhere. The survey report tells me the central<br>value of the optics target:<br><br><a href="http://hallaweb.jlab.org/news/minutes/Survey_Reports/DT_A1240.pdf">http://hallaweb.jlab.org/news/minutes/Survey_Reports/DT_A1240.pdf</a><br>
<br>and this one tells me the value of L (distance from target to sieve):<br><br><a href="http://hallaweb.jlab.org/news/minutes/Survey_Reports/DT_A1239.pdf">http://hallaweb.jlab.org/news/minutes/Survey_Reports/DT_A1239.pdf</a><br>
<br>Does anyone know where to find this Carbon foil information about the<br>carbon foils? The target links on the Hall A page take me to a<br>generalized description about the 3He target, but no technical<br>information.<br>
</blockquote>
<div> </div></div></div></blockquote>
<div> </div>
<div> Yi said that the spacing of the carbon foils is exactly 40cm/6 = 6.667 cm.</div>
<div> </div>
<div> Best,</div>
<div> </div>
<div> Lamiaa</div></div>