73 lines
2.0 KiB
HTML
73 lines
2.0 KiB
HTML
<HTML>
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<HEAD>
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<TITLE>AMOR 2 Theta</TITLE>
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</HEAD>
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<BODY>
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<H1>AMOR 2 Theta </H1>
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<P>
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The movement off the two theta is quite complex at the reflectometer
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AMOR. The angle of the detector itself is expressed by translations
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along the optical bench and in height. Then the angle of the detector
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needs to be adjusted as well. Moreover some diaphragms along the way
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from the sample to the detector need adjustment as well. In polarizing
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mode the analyzer position must be corrected as well. In order to do
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this a virtual motor has been created which takes care of this
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movement. As such this object has no real user interface except the
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usual printing of the position when the name of the virtual motor is
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typed. However, in order to do his work this virtual motor needs a lot
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of parameters. These are described below. It is assumed that the
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virtual motors name is s2t. There is another virtual motor called
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aom2t which is the analyzer two theta angle.
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</P>
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<p>
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Parameters needed by the AMOR virtual two theta motor
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<dL>
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<dt>detectord
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<dd>distance of the detector from the sample.
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<dt>d4d
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<DD>distance of diaphragm 4 from the sample.
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<dt>d5d
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<DD>distance of diaphragm 5 from the sample.
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<dt>sampleh
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<DD>An additive factor describing the height of the sample, i.e. the
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height of the table itself.
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<dt>detectorh
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<DD>The base height of the detector.
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<dt>d4h
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<DD>The base height of diaphragm 4.
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<dt>d5h
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<DD>The base height of diaphragm 5.
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<DT>interrupt
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<DD> The interrupt to issue if this motor fails to operate.
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<DT>anah
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<DD>Height of the analyzer.
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<DT>anad
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<DD>distance analyser - sample.
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<dt>anaflag
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<dd>Flag if analyzer movement should be calculated or not. -1 if not,
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positive if yes.
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<dt>c2h
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<dd>height constant for single detector 2.
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<dt>aomconst
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<dd>constant part of analyzer omega angle.
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</dl>
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The values of parameters can be inquired by typing:
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<pre>
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s2t parname
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</pre>
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and set by:
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<pre>
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s2t parname newval
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</pre>
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For example:
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<pre>
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s2t detectord
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155.
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s2t detectord 300.
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</pre>
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</p>
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</BODY>
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</HTML>
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