M74050
1/4M IMAGING SPECTROGRAPHS
19
5.3 MOTORIZED SLIT
A motorized slit assembly may be adjusted from 6 µm to 2 mm width in 6 µm steps. The slit width is
controlled through the utility software, optional hand controller, optional TracQ Basic software or by
using low level commands.
An advantage of using the motorized slit is that in addition to setting a specific slit width, the software
may be configured to an automatic bandpass setting. The software then adjusts the slit width to
maintain the chosen bandpass as scans are performed using multiple gratings. The mathematics
involved in determining the slit width takes into account the input and output focal lengths of the
instrument’s design, as well as the angle of the grating at the specified wavelength.
Please note that a motorized slit is not available for use at the lateral output port of the MS260i.
Figure 12: A Motorized Slit
Figure 13: Mono Utility Software Slit Control