<br><br><div class="gmail_quote">On Wed, Apr 28, 2010 at 10:43 AM, Brad Sawatzky <<a href="mailto:brads@jlab.org">brads@jlab.org</a>> wrote:<br><blockquote class="gmail_quote">
<div>
I presume the LHRS angle was set to 45 degrees? Are the survey data on<br></div>
the LHRS incorported into our DB?<br></blockquote><div><br>Yes, the LHRS was set to 44.985 deg.: <a href="http://hallaweb.jlab.org/news/minutes/Survey_Reports/DT_A1235.pdf">http://hallaweb.jlab.org/news/minutes/Survey_Reports/DT_A1235.pdf</a><br>
<br>I found this page for survey reports: <a href="http://hallaweb.jlab.org/news/minutes/Survey_Reports/Survey_Reports.html">http://hallaweb.jlab.org/news/minutes/Survey_Reports/Survey_Reports.html</a><br>
<br>I was thinking that the information we need is from the reports from 8/3/09 (Spectrometer Pointing -- has entries from March -- August), 2/6/09 (Target Ladder entry). Do you remember the most recent survey report <just before> d2n? From looking at this page, it seems I need to look at a few different ones to gather the proper information. <br>
<br></div>I was just talking with Jin concerning an offset with phi. He suggested to look at Hydrogen elastic runs and see where the elastic peak falls. Then to manually adjust the 0th matrix element for phi. He mentioned I could try with dp as well, but it may be best to play with phi first. <br>
<br>As for the offsets (Dx,Dy) referring to the offset of the central ray from the center of the HCS, I'm starting to work on that -- they should go in the db_run.dat file. <br><br>
</div>Dave<br><br>-- <br>-----------------------------------------------------------<br>David Flay<br>Physics Department<br>Temple University<br>Philadelphia, PA 19122 <br><br>office: Barton Hall, BA319<br>phone: (215) 204-1331<br>
<br>e-mail: <a href="mailto:flay@jlab.org">flay@jlab.org</a> <br> <a href="mailto:flay@temple.edu">flay@temple.edu</a><br><br>website: <a href="http://www.jlab.org/%7Eflay">http://www.jlab.org/~flay</a><br>
<a href="http://quarks.temple.edu">http://quarks.temple.edu</a><br>
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