Zolix Instruments Omni-l200i Series, Руководство по эксплуатации

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Spectral Bandwidth and Slit Width Comparison Table
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6. Spectral Bandwidth Calculation Formula
Spectral bandwidth = slit width X Reciprocal Dispersion
NOTE1, This formula only for slit width
＞
100μm.
NOTE2, The real measurement bandwidth value slightly more calculation value.
NOTE3, The Reciprocal Dispersion of different spectrograph are shown in the SPECIFICATION
table,and the Reciprocal Dispersion value only for 1200g/mm gratings. So you need the below
formula to calculate other groove density gratings:
Real Reciprocal Dispersion = Reciprocal Dispersion value in the SPECIFICATION table X 1200/ real
grating groove density
e.g.1: For Omni-λ300 monochromator with 600g/mm gratings
Real Reciprocal Dispersion =3.6×1200/600=7.2nm/mm
When the slitwidth is 2mm, the spectral width =7.2×2=14.4nm
Also, according to above formula to calculate the slit width of fixed spectral width