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<DIV style="FONT-FAMILY: Tahoma">Dear Zhiwen,</DIV>
<DIV style="FONT-FAMILY: Tahoma">Our MRPC is strip readout. The spatial along
the strip can be obtained according the time differenc of sginals of two ends,
it ls about a few mms. The spatial across the strip is about strip width/square
root of 12.</DIV>
<DIV style="FONT-FAMILY: Tahoma">best regards,</DIV>
<DIV> </DIV>
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<DIV><SPAN>
<DIV style="FONT-FAMILY: verdana; FONT-SIZE: 10pt">
<DIV>Yi Wang</DIV>
<DIV>Department of Engineering Physics, Tsinghua University</DIV>
<DIV>Liuqing Building Room412, Beijing, 100084, China</DIV>
<DIV>Phone and Fax: 8610-62771960</DIV>
<DIV>Mobil: 86-13331129352</DIV></DIV></SPAN></DIV>
<DIV> </DIV>
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<DIV><B>From:</B> <A href="mailto:zwzhao@jlab.org">Zhiwen Zhao</A></DIV>
<DIV><B>Date:</B> 2016-09-02 05:24</DIV>
<DIV><B>To:</B> <A href="mailto:yiwang@mail.tsinghua.edu.cn">yiwang</A>; <A
href="mailto:solid_tof@jlab.org">solid_tof</A></DIV>
<DIV><B>Subject:</B> MRPC position resolution</DIV></DIV></DIV>
<DIV>
<DIV>Dear Yi</DIV>
<DIV> </DIV>
<DIV>What's the estimation of MRPC position resolution?</DIV>
<DIV>It can be useful for us to estimate overall performance for different
study.</DIV>
<DIV> </DIV>
<DIV>I am thinking it could be at different level</DIV>
<DIV>1. offline analysis stage.</DIV>
<DIV>Together with timing resolution, this will affect PID. The hit can be a
</DIV>
<DIV>seed for tracking also. This needs the best resolution possible.</DIV>
<DIV>2. level 3 trigger stage.</DIV>
<DIV>We want to use hit on MRPC as a seed for a fast and rough tracking. This
</DIV>
<DIV>resolution can be larger, but can be obtained quickly with limited info,
</DIV>
<DIV>maybe close to readout strip size?</DIV>
<DIV>3. level 1 trigger stage.</DIV>
<DIV>we want to match the hit on MRPC to these 100cm2 EC modules. so the </DIV>
<DIV>resolution can be very rough, maybe just module size?</DIV>
<DIV> </DIV>
<DIV>So I am guessing 1mm,1cm,10cm for 1,2,3</DIV>
<DIV> </DIV>
<DIV>Please let me know what's the best value you can estimate for now.</DIV>
<DIV>This would be very helpful.</DIV>
<DIV> </DIV>
<DIV>Thanks</DIV>
<DIV> </DIV>
<DIV>Zhiwen</DIV></DIV></BODY></HTML>