Optical system
| Configuration: | two imaging monochromators with Cherny-Turner optical scheme; monochromators are cascade situated for dispersion subtraction |
| Ports*: | 1 input and 1 output |
| Wavelength range: | 185 nm – 60 μm (depends on the type of grating) |
| F/number (entrance): | 1/3.8 |
| Mirror focal lengths: | 300 mm и 350 mm |
| Scanning range, limited by grating rotation angle: | 0 – 1270 nm (for 1200 l/mm grating) |
| Main mirrors: | spherical |
| Stray light: | 5 х 10-10 (20 nm from laser line 632.8 nm) |
- Configuration: two imaging monochromators with Cherny-Turner optical scheme; monochromators are cascade situated for dispersion subtraction
- Ports*: 1 input and 1 output
- Wavelength range: 185 nm – 60 μm (depends on the type of grating)
- F/number (entrance): 1/3.8
- Mirror focal lengths: 300 mm and 350 mm
- Scanning range, limited by the grating rotation angle: 0-1270 nm (for 1200 l/mm grating)
- Main mirrors: spherical
- Stray light: 5х10-10 (20 nm from laser line 632.8 nm)
* Optionally, the axial exit port of the first monochromator can be used. In this case, the first monochromator will operate in the imaging spectrograph mode. The specification will correspond to the specification of the first MS3504i monochromator-spectrograph device.
Drive
| Motor: | stepper, with fractional steps |
| Drive: | warm |
| Step size: | 1.62 arc seconds |
| Precision: | ± 1 step |
| Maximal speed: | 10 000 steps/s |
- Motor: stepper, with fractional steps
- Drive: warm
- Step size: 1.62 arc seconds
- Precision: ± 1 step
- Maximal speed: 10000 steps/s
Optics
for grating 1200 l/mm, slit width 15 μm, wavelength – 546 nm
| Spectral resolution: | 0.07 nm |
| Repeatability: | ± 0.03 nm |
| Wavelength accuracy: | ± 0.06 nm |
| Average scanning step: | 0.01 nm |
Spectral resolution: 0.07 nm
- Repeatability: ±0.03 nm
- Wavelength accuracy: ±0.06 nm
- Average scanning step: 0.01 nm
Gratings
| Size of grating: | 70 х 70 х 10 mm |
| Rotation of gratings: | about the center of grating working surface |
| Mounting of gratings: | automated 4-grating turret in each monochromator |
| Grating repeatability of monochromators *by wavelength: | ± 0.03 nm |
| Grating repeatability of monochromators by vertical image: | ± 0.050 mm |
- Size of grating: 70 х 70 х 10 mm
- Rotation: about the center of grating working surface
- Mounting: automated 4-grating turret in each monochromator
- Grating repeatability of monochromators *by wavelength: ±0.03 nm
- Grating repeatability of monochromators by vertical image: ±0.050 mm
* For grating 1200 l/mm, slit width 15 μm, wavelength – 546 nm.
Spectral slits
| Type of spectral slit: | Automated (combined) | Manual |
|---|---|---|
| Control: | automated (drive) or manual (micrometer) | manual by micrometer |
| Width: | regulated from 0 to 2.0 mm | |
| Parallelism: | ± 1 μm | |
| Accuracy (slit 1 mm): | ± 10 μm | |
| Repeatability: | ± 1 μm | ± 1.5 μm |
| Reading accuracy (micrometer): | 2 μm | |
| Step size: | 0.5 μm | – |
| Height: | diaphragm-regulated from 0 to 10 mm |
Automated (combined)
- Control: automated (drive) or manual (micrometer)
- Width: regulated from 0 to 2.0 mm
- Parallelism: ±1 μm
- Accuracy (slit 1 mm): ±10 μm
- Repeatability: ±1 μm
- Reading accuracy (micrometer): 2 μm
- Step size: 0.5 μm
- Height: diaphragm-regulated from 0 to 10 mm
Manual spectral slits
- Control: manual by micrometer
- Width: regulated from 0 to 2.0 mm
- Parallelism: ±1 μm
- Accuracy (slit 1 mm): ±10 μm
- Repeatability: ±1.5 μm
- Reading accuracy (micrometer): 2 μm
- Height: diaphragm-regulated from 0 to 10 mm
Integrated shutter
| Shut time: | ~100 ms |
| Maximal frequency: | 1 Hz |
| Control: | on-board CPU or TTL-signals from the external device |
- Shut time: ~100 ms
- Maximal frequency: 1 Hz
- Control: on-board CPU or TTL-signals from the external device
Control
| Central control: | on-board CPU |
| External control: | PC |
| External interface: | Ethernet, USB |
- Central control: on-board CPU
- External control: PC
- External interface: Ethernet, USB
Power requirements
| Supply voltage: | (100…220) V, 50/60 Hz |
| Power consumption: | not more than 70 W |
- Supply voltage: (100…220) V, 50/60 Hz
- Power consumption: not more than 70 W