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<title>(IUCr) CIF Definition save__diffrn_radiation.div_x_source</title>
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<p class="title">DRAFT DICTIONARY</p>
<p class="title"><font class="smalltitle"></font>CBF/imgCIF Extensions Dictionary</p>
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<p class="title">Draft version 1.5 for comment</p>
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<h5>Image dictionary (imgCIF) version 1.5.4</h5>
<h1>_diffrn_radiation.div_x_source</h1><b>Name:</b><br /><tt class="cifdefinition">'_diffrn_radiation.div_x_source'</tt>
<p><b>Definition:</b></p><pre class="cifdefinition">
Beam crossfire in degrees parallel to the laboratory X axis
(see AXIS category).
This is a characteristic of the X-ray beam as it illuminates
the sample (or specimen) after all monochromation and
collimation.
This is the standard uncertainty (e.s.d.) of the directions of
photons in the XZ plane around the mean source beam
direction.
Note that for some synchrotrons this value is specified
in milliradians, in which case a conversion is needed.
To convert a value in milliradians to a value in degrees,
multiply by 0.180 and divide by \p.
</pre>
<p><b>Type:</b> float</p>
<p class="pack"><b>Mandatory item:</b> no</p>
<p class="pack"><b>Category:</b> <a href="Cdiffrn_radiation.html" class="catlink">diffrn_radiation</a></p>
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HTML version of draft dictionary created by modified version of makedicthtml by B. McMahon
from modified version of imgCIF dcitionary 1.3.2 which is subject to the following copyright:
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