65 lines
2.7 KiB
HTML
65 lines
2.7 KiB
HTML
<HTML>
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<HEAD>
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<TITLE>TRICS specific Count and Scan Command </TITLE>
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</HEAD>
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<BODY>
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<H1>PSD-TRICS Count and Tricsscan Command</H1>
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<h2>New Commands</h2>
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<p>
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As of 2005, the normal SICS scan command can be used for TRICS. There is
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now a special command:
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<pre>
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scan2d
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</pre>
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which switches to PSD scan mode. Switching to single detector mode is
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achieved through:
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<pre>
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scan1d
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</pre>
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H, k and l are now virtual motors in SICS and can be scanned normally.
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</p>
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<h2>Obsolete Commands</h2>
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<P>
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Several special commands have been defined for TRICS with a PSD:
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<dl>
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<dt>count <tt>mode preset </tt>
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<dd>counts with all three detectors. The parameter mode defines which
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counting mode is used, supported are <b>preset</b> for counting up to a
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preset monitor or <b>timer</b> for counting for a specified time intervall.
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The second prameter preset is either the preset monitor or the preset
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counting time, depending on the mode choosen. Both parameters are
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optional, if they are notc specified values from the last run will be used.
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count does not store any data.
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<dt>tricsscan <tt>start step np mode preset</tt>
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<dd>This command creates a new data file and then performs a scan in omega,
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storing meausured data after each step. <tt>start step np</tt> define the
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scan range in omega. Start is the start position, step the step width to
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use and np is the number of steps to do. The optional parameters mode and
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preset have the same meaning as in the count command described above.
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Mode and preset how data is collected at each step in omega.
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<dt>psdrefscan filename step np mode preset
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<dd>reads reflection HKL values from file filename and performs
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tricsscans for each reflection. These will be done eith step width
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step, the number of steps np with counting mode mode and a preset of
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preset. These parameters have the same meaning as described above. If the
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{\bf hkl nb 1} command has been given before the invocation of this scan,
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reflections will be searched in normal beam geometry. psdrefscan, however,
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will only print the normal four circle angles, though.
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<dt>detscan start step np mode preset
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<dd>Detscan performs a scan in two theta. This may be useful for detector
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calibrations. Arguments as described above.
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<dt>phscan start step np mode preset
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<dd>Phscan performs a scan in phi. This can be usefule for orienting a
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crystal. Arguments as described above.
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<dt>o2tscan2d start step np mode preset
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<dd>O2tscan2d performs a omega - two-theta scan with the PSD.
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Arguments as described above.
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<dt>hklscan2d
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<dd> For a scan in reciprocal space with the PSD, see the
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documentation for <a href="hklscan.htm">hklscan</a>. Please note that
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for a PSD HKL scan, all commans have to start with hklscan2d.
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</dl>
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</P>
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</BODY>
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</HTML>
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