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Optical system |
|
| Optical scheme |
two-level arrangement, dispersion doubling |
| Wavelength range |
185 nm – 60 μm |
| F-number |
5.9 |
| Focal length |
1000 mm (2 x 500 mm) |
| Scanning range (limited by grating rotation angle) |
0 – 1280 nm |
| Stray light |
1 х 10-8 (20 nm from laser line 632,8 nm) |
| Flat field |
28 х 10 mm |
Imaging |
|
| Horizontal magnification |
1.08 |
| Vertical magnification |
1.11 (for MSDDO1002i and MSDDO1004i) |
| Vertical spatial resolution - minimal distance between the edges of two neighboring tracks (in multi-channel spectroscopy) |
< 15 μm |
Drive |
|
| Motor type |
micro stepper |
| Drive |
sine |
| Step |
0.18 arc seconds |
| Accuracy |
± 1 step |
| Max. speed |
10 000 steps/s |
Ports |
|
| Number of ports |
2 input, 2 output |
| Output port repeatability (automated mirror) |
± 0.01 nm |
| Switching time (input port) |
4 s |
| Switching time (output port) |
4 s |
Optic (for grating 1200 l/mm, wavelength 546 mm) |
|
| Reciprocal dispersion |
0.82 nm/mm |
| Repeatability |
± 0.005 nm |
| Spectral resolution | |
|
0.013 nm |
|
0.017 nm |
| Wavelength accuracy |
± 0.028 nm |
| Average scanning step |
0.0014 nm |
Gratings |
|
| Size |
80 х 70 х 10 mm |
| Rotation |
About the center of ruled grating surface |
| Mounting |
1. Automated turret for 2 pairs of gratings 2. Holder for 1 pair of manually changeable grating |
|
Automated turret for 2 pairs of gratings (MSDDO1004 model and MSDDO1004i model) Grating repeatability: |
|
|
± 0.006 nm |
|
± 20 µm |
|
Holder for 1 manually changeable grating (models MSDD1002 and MSDD1002i) Grating repeatability: |
|
|
± 0.05 nm |
|
± 75 µm |
Control |
|
| Central |
On-board CPU |
| External |
RS-232 |
|
External interface |
Ethernet |
Dimensions |
|
| Overall sizes (LхWхH) |
556 х 324 х 340 mm |
| Weight |
35 kg |
