The ei command will put the instrument in a "Fixed incident energy"
configuration.
The syntax of the ei command is:
ei value
where value is the stored energy value. Note that this command
does not drive
the monochromator to this value of ei - to do so, type:
drive ei
value
The ei command can also be accessed from the GUI
by selecting the Experiment
tab from the Setup
top-level tab. To change to a fixed incident energy configuration
and/or the stored value of Ei, the green button at the bottom of the tab
must be changed from "Monitoring ...
Click to allow changes" to "Changing ... click
to monitor". Select "Fixed Incident
Energy (meV)" from the pull-down menu, change the value for "Fixed Energy (meV)" and commit the
changes by clicking on the blue "Update
Parameters" button.
