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Chapter 3 SCT 320 Operation 31
Figure 3-2. LightField Experiment Settings stack and Experiment Devices panel
3. Note that the Experiment Settings stack on the left now displays several expanders.
Because this is a new experiment, the default settings for the detector will be active. The
Status bar (at the bottom of the window) displays an icon for temperature status.
Temperature status reports the current temperature and whether the set temperature has
been reached. Clicking on the icon, opens the Sensor expander which is where the set
temperature can be changed.
4. On the Shutter expander, select Shutter Mode: Normal (see Figure 3-2).
5. Open the Spectrometer expander, select the appropriate grating (see Figure 3-2). In this
case, the 300g/mm (Blaze: 750) grating was selected and the center wavelength was set
to 500 nm for a mercury lamp. Use 0.0 nm if using a broadband source.
Hint: Overhead fluorescent lights produce a mercury spectrum. Use a white card tilted at 45
degrees in front of the entrance slit to reflect overhead light into the spectrograph. Select 500 nm
as the spectral line.