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Moving the Tagger Microscope (view source)
Revision as of 19:07, 19 March 2021
, 19:07, 19 March 2021→Coordinate System
In Spring 2017 a survey of the various beamline components saw a small change in the Tagger Microscope position. The Microscope (upstream center) position derived from this survey is shown below and includes a magnet center shift from previous measurements.
In Spring 2017 a [https://halldweb.jlab.org/wiki/images/e/e0/TaggerHodoscopeEnergy-1-2017.pdf survey] of the various beamline components saw a small change in the Tagger Microscope position. The Microscope (upstream center) position derived from this survey is shown below and includes a magnet center shift from previous measurements.
<center>
<table style="border:1px solid black;" cellspacing="0">
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<td colspan="2">
<table style="border: thin solid black;" cellspacing="0">
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<th colspan="2"; style="background-color:rgb(239,222,205)"><span style="background-color:yellow">Spring 2017</span> </th>
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<th align="center" valign="top"; style="background-color:rgb(239,222,205)" colspan="2">Survey of Tagger Microscope Position</th>
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<th style="background-color:rgb(239,222,205); font-size:10px" colspan="2"> <em>(Upstream Center)</em> </th>
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</table>
</td>
</tr>
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<td align="right" valign="top">X <sub>room</sub> = </td><td align="left" valign="top"> - 1.16666 m</td>
</tr>
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<td align="right" valign="top">Z <sub>room</sub> = </td><td align="left" valign="top"> 7.41009 m</td>
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<td align="right" valign="top">Angle <sub>room</sub> = </td><td align="left" valign="top"> - 8.05220<sup>o</sup> </td>
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</table>
</center>
<center>
<table style="border:1px solid black;" cellspacing="0">
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<td colspan="2">
<table style="border: thin solid black;" cellspacing="0">
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<th colspan="2"; align="center" valign="top"; style="background-color:rgb(124,185,232); font-size:13px">New Coordinates</th>
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<th colspan="2"; style="background-color:rgb(124,185,232); font-size:10px"> <em>(with magnet center shift) </em> </th>
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</table>
</td>
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<td align="right" valign="top">X <sub>map</sub> = </td><td align="left" valign="top">0.73488 m</td>
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<td align="right" valign="top">Y <sub>map</sub> = </td><td align="left" valign="top">1.22645 m</td>
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<td align="right" valign="top">X <sub>FP</sub> = </td><td align="left" valign="top">3.31245 m</td>
</tr>
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<td align="right" valign="top">Y <sub>FP</sub> = </td><td align="left" valign="top">-0.00932 m</td>
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</table>
</center>
<!--
[[Image:TAGM_New_Coord.png|center|thumb|500px|Figure 2: Results of a Spring 2017 survey. (Image taken from a [https://halldweb.jlab.org/wiki/images/e/e0/TaggerHodoscopeEnergy-1-2017.pdf Dan Sober Presentation])]]
[[Image:TAGM_New_Coord.png|center|thumb|500px|Figure 2: Results of a Spring 2017 survey. (Image taken from a [https://halldweb.jlab.org/wiki/images/e/e0/TaggerHodoscopeEnergy-1-2017.pdf Dan Sober Presentation])]]
-->
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