Figure 6-10: Lightfield Align Spectrometer - Teledyne PIXIS Manual

Chapter 6
2. Mount a light source (e.g., mercury pen-ray type,) in front of the entrance slit of the
spectrograph.
Any light source with line output can be used. Standard fluorescent overhead lamps
have good calibration lines as well. If there are no line sources available, use a
broadband source such as tungsten for the alignment. If this is the case, use a
wavelength setting of 0.0 nm for alignment purposes.
3. Open the Spectrometer expander, select the grating, and set the center wavelength
to:
•
•
4. Set the slit to 10 m. If necessary, adjust the Exposure Time to maintain optimum
(i.e., near full-scale,) signal intensity.
5. Allow the detector temperature to lock at its default temperature.
6. Verify that the spectroscopy-mount adapter moves freely at the spectrograph.
7. From the Experiment Menu, select Align Spectrometer.... See
Figure 6-10: LightField Align Spectrometer... Menu Option
Review the displayed information and then click
creates three 1-row high ROIs (i.e., one near the top of the array, one in the middle,
and one near the bottom,) and begins data acquisition. Data are continuously
acquired and displayed but not stored.
First Light
500 nm when using a mercury lamp; or
0.0 nm when using a broadband source.
NOTE:
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.
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Figure 6-10.
. Typically, this