| Monochromator |
IDR300 double monochromator including integrated picoammeter and high voltage supply |
| Monochromator configuration |
Symmetric, Czerny-Turner |
| Monochromator focal length |
600mm (200-1100nm, double mode)
300mm (1100-3000nm, single mode) |
| Bandwidth |
Software controlled motorised slit |
| Number of gratings |
3 (Turret 1)
2 (Turret 2) |
| Resolution |
0.075nm (2400g/mm)
0.3nm (1200g/mm)
0.9nm (400g/mm, single mode) |
| Dispersion |
0.675nm (2400g/mm)
1.35nm/mm (1200g/mm)
8.1nm/mm (400g/mm) |
| Wavelength accuracy |
± 0.05nm (2400g/mm)
± 0.1nm (1200g/mm)
± 0.6nm (400g/mm) |
| Detectors (200-1400nm) |
Multi-alkali photomultiplier
Silicon and InGaAs photodiodes |
| Detectors (1000-3000nm) |
PbS photodiode |
| Signal recovery (200-1400nm) |
2 dual-channel picoammeters |
| Signal recovery (1000-3000nm) |
Pre-amplifier followed by lock-in amplifier |
| Irradiance entrance optic (200-1100nm) |
Cosine corrected transmission diffuser, 1m quartz fibre bundle |
| Irradiance entrance optic (1000-3000nm) |
Integrating sphere followed by CaF2 relay optic |
| Radiance entrance optic |
Direct view telescope permitting measurement from 200mm to 10m in key 1.7, 5 and 11mrad FOVs. Coupled to IDR300 with 1m long quartz fibre bundle |
| Spectral irradiance standards |
Quartz halogen and deuterium irradiance standards, supplied with calibration traceable to PTB, Germany |
| Spectral radiance standard |
Quartz halogen, integrating sphere-based radiance standard, supplied with calibration traceable to PTB, Germany |
| Beam profiler |
CMOS based beam profiler to determine (apparent) source size and location |
| Illuminance meter |
Photometric detector with virtual luxmeter |