<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: arial,helvetica,sans-serif; font-size: 12pt; color: #000000'>Hi All,<br><br>As Dan has indicated, it looks like probe 4 is consistently different (approx 5 gauss) from the other probes. After the 2nd configuration run we will recheck our calibration. This will involve setting up the first configuration again to get the probes in the "steady" field region.<br><br><br>In addition, it appears that the calibration data was not added for each Hall probe (as they all consistently read over the NMR) in the plots. Is this true?<br><table border="0" cellpadding="0" cellspacing="0" width="832"><tbody><tr height="20"><td style="height:15.0pt;width:48pt" height="20" align="right" width="64"><br></td><td style="width:48pt" align="right" width="64"><br></td><td style="width:48pt" align="right" width="64"><br></td><td style="width:48pt" align="right" width="64"><br></td><td style="width:48pt" align="right" width="64"><br></td><td style="width:48pt" align="right" width="64"><br></td><td style="width:48pt" align="right" width="64"><br></td><td style="width:48pt" width="64"><br></td><td style="width:48pt" align="right" width="64"><br></td><td style="width:48pt" align="right" width="64"><br></td><td style="width:48pt" align="right" width="64"><br></td><td style="width:48pt" align="right" width="64"><br></td><td style="width:48pt" align="right" width="64"><br></td>
</tr></tbody></table><br><br><div>Tim Whitlatch<br>Hall D Engineer<br>Jefferson Lab<br>12050 Jefferson Ave ste 402<br>Newport News, Va 23606<br>757-269-5087<span></span><br></div><br><hr id="zwchr"><div style="color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From: </b>"Daniel Sober" <sober@cua.edu><br><b>To: </b>"Timothy Whitlatch" <whitey@jlab.org><br><b>Cc: </b>"Natalie Walford" <natalie@jlab.org>, "Alexander Somov" <somov@jlab.org>, "Giles Brown" <giles@jlab.org>, "Eugene Chudakov" <gen@jlab.org>, "Franz Klein" <KLEINF@cua.edu>, "Hall D beam working group" <halld-tagger@jlab.org><br><b>Sent: </b>Saturday, January 11, 2014 3:20:13 PM<br><b>Subject: </b>Analysis of tagger field map at 0.75 T added<br><br>
The analysis of the tagger dipole field maps for Configuration 1 at
1.7 T, 1.5 T and 0.75 T is posted at<br>
<a>http:/faculty.cua.edu/sober/HallD/mapping</a><br>
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-- <br>
<font color="#ff0000"><i>Daniel Sober<br>
Professor<br>
Physics Department<br>
The Catholic University of America<br>
Washington, DC 20064<br>
Phone: (202) 319-5856, -5315<br>
E-mail: <a href="mailto:sober@cua.edu" target="_blank">sober@cua.edu</a></i></font><br>
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