M77781A
MS257
™ USB/RS232
MONOCHROMATOR AND SPECTROGRAPH
48
The standard fixed slits available for the MS257 are listed below.
Fixed Slit Model
Slit Width (µm)
Slit Height (mm)
Resolution (nm)
77222
10
2
0.10
77220
25
3
0.15
77725
25
6
0.15
77221
50
3
0.25
77219
50
6
0.25
77728
100
3
0.45
77729
100
10
0.45
77730
200
3
0.8
77731
200
10
0.8
77732
500
15
2
77733
1000
15
4
77734
2000
20
6
77736
1500
15
8
77735
5000
20
20
The typical resolutions listed in the above table apply to use with a 1200 line per mm grating. For
other gratings, multiply the resolution listed by 1200 and then divide by the other grating
’s groove
density.
Resolution is defined here as the width of a single wavelength line at the point of half maximum
intensity - also known as FWHM, full width at half maximum. Refer to Appendix A for more
information on bandpass and resolution.
