PerkinElmer Spotlight 400 Series, User Manual

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Techniques for Collecting IR Images and Spectra . 65
11. In the Stage Control window, click .
The Start Image dialog is displayed.
12. Enter a filename for the new image and then click
Start Image
.
Data collection begins and the new image is displayed in a new window.
Using the Compression Cell
The optional compression cell (part number N1870185, Figure 19) enables you to flatten soft
materials. It also enables you to hold specimens flat and in optical contact with salt windows.
The cell consists of an aluminum block, machined to accept salt windows, with window
retainers and a special wrench to apply pressure across the windows. The sample is held
between the two windows. The compression cell fits into the sample slide holder on the
stage of the imager. 1 mm and 2 mm thick windows of 13 mm outer diameter can be used
with the cell; two KBr windows (2 mm thickness) are included. The cell can apply pressure
without rotating the windows, and therefore avoids scratching them.
Figure 19 The compression cell
Although thinning can be performed with the compression cell, it does not replace the
miniature diamond anvil cell as a sample-thinning device. The primary application of the
compression cell is for keeping specimens flat over the entire visual field of view.