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Configuration

Czerny-Turner

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

0.1nm at reduced slit height, 0.3nm with full slit height of 20mm, both measured with 1200g/mm grating

Dispersion

2.7nm/mm (1200g/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 repeatability

+/-0.05nm (1200g/mm)