| Specification |
| Configuration |
Czerny-Turner |
| Focal length |
600mm |
| Slits |
10µm to 10mm variable, fixed or motorised |
| Slit height |
20mm |
| Number of gratings |
1,2 or 3 |
| Grating size |
68 x 84mm |
| Aperture ratio |
f/4.1 (at all grating angles) |
| Resolution - additive |
0.05nm at reduced slit height, 0.15nm with full slit height of 20mm, both measured with 1200g/mm grating |
| Resolution - dispersive |
0.1nm at reduced slit height, 0.3nm with full slit height of 20mm, both measured with 1200g/mm grating |
| Dispersion - additive |
1.35nm/mm (1200g/mm) |
| Dispersion - subtractive |
2.7nm/mm |
| Mechanical resolution of grating drive |
0.00072 degrees per motor step |
| Wavelength acquisition speed |
1000nm/sec |
| Wavelength accuracy |
+/- 0.2nm over full range of 1200g/mm grating |
| Wavelength responsivity |
+/-0.5nm (1200g/mm) |
