<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-US"> <head> <title>(IUCr) CIF Definition save__diffrn_radiation.polarisn_ratio</title> <link rel="stylesheet" type="text/css" href="../../itg.css" /> </head> <body> <!-- begin masthead --> <div class="masthead"> <table class="masthead"> <tr> <td class="masthead" width="30%"> <p class="title">DRAFT DICTIONARY</p> <p class="title"><font class="smalltitle"></font>CBF/imgCIF Extensions Dictionary</p> </td> <td class="masthead"> <p class="title">Draft version 1.5 for comment</p> </td> </tr> </table> </div> <!-- end masthead --> <hr> <H1> <a href="http://www.iucr.org/iucr-top/welcome.html"> <img alt="[IUCr Home Page]" src="../html_graphics/iucrhome.jpg" ALIGN=MIDDLE></a> <a href="http://www.iucr.org/iucr-top/cif/home.html"> <img alt="[CIF Home Page]" src="../html_graphics/cifhome.jpg" ALIGN=MIDDLE></a> <a href="cbf_definition_rev.html"><IMG SRC="../html_graphics/CBFbutton.jpg" ALT="[CBF/imgCIF]" ALIGN=MIDDLE></a> <a href="CBFlib.html"><IMG SRC="../html_graphics/cbflibbutton.jpg" ALT="[CBFlib]" ALIGN=MIDDLE></a> </H1> <hr> <!-- begin navbar --> <div class="navbar"> <table class="navbar"> <tr> <td><a class="navbar" href="index.html">Contents</a></td> </tr> </table> </div> <!-- end navbar --> <p class="index"><a class="index" href="index.html">Index</a></p> <h5>Image dictionary (imgCIF) version 1.5.4</h5> <h1>_diffrn_radiation.polarisn_ratio</h1><b>Name:</b><br /><tt class="cifdefinition">'_diffrn_radiation.polarisn_ratio'</tt> <p><b>Definition:</b></p><pre class="cifdefinition"> Polarization ratio of the diffraction beam incident on the crystal. This is the ratio of the perpendicularly polarized to the parallel polarized component of the radiation. The perpendicular component forms an angle of <a href="Idiffrn_radiation.polarisn_norm.html" class="itemlink">_diffrn_radiation.polarisn_norm</a> to the normal to the diffraction plane of the sample (i.e. the plane containing the incident and reflected beams). </pre> <p><b>Type:</b> float</p> <p class="pack"><b>Mandatory item:</b> no</p> <b>Alias:</b> <br /><tt> _diffrn_radiation_polarisn_ratio</tt> (cif_core.dic version 2.0.1) <br />The permitted range is [0.0, infinity)<br /> <p class="pack"><b>Category:</b> <a href="Cdiffrn_radiation.html" class="catlink">diffrn_radiation</a></p> <h4 align=left> 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: </h4> <!-- begin copyright --> <div class="copyright"> <p class="copyright">Copyright © 2005 International Union of Crystallography</p> </div> <!-- end copyright --> </body> </html>