<div dir="ltr"><div class="gmail_extra"><br><div class="gmail_quote">On Tue, May 12, 2015 at 2:29 PM, Zhiwen Zhao <span dir="ltr"><<a href="mailto:zwzhao@jlab.org" target="_blank">zwzhao@jlab.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="overflow:hidden">The things I see affect <span>baffle</span> design<br>
0. physics (event generator, background estimation, trigger design)<br>
1. magnet geometry and field<br>
2. target chamber. We assume 1st plane of <span>baffle</span> is now inside of target chamber, because it's too<br>
close to target.<br>
My guess is this makes it very hard or impossible to adjust for alignment once installed. I think<br>
target chamber<br>
doesn't want it there either if it's an option. So if new <span>baffle</span> design can make 1st plane further<br>
away from target<br>
to stay out of target chamber it would be best.<br>
3. neutron shielding. we suppose it just fill space left for it. but in reality, maybe they need to<br>
be designed<br>
and installed togther.<br>
4. supporting. not just it's not easy to support, we may need the ability adjust things with good<br>
precision while<br>
the whole thing is fully installed.<br>
5. maybe more, I don't know<br></div></blockquote></div><br>As Paul just mentioned, possible need for straight throughs for Q2 calibration.</div><div class="gmail_extra"><br><br clear="all"><div><br></div>-- <br><div>- Richard S. Holmes<br> Physics Department<br> Syracuse University<br> Syracuse, NY 13244<br> <a href="tel:315-443-5977" value="+13154435977" target="_blank">315-443-5977</a><br></div>
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