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Monochromators
& Spectrographs >> Toroidal Grating Spectrograph
Vacuum UV - Toroidal Grating Spectrograph
(TGS)
TGS Optical Layout
- High luminosity : only one optical piece (aberration corrected toroidal holographic grating).
- Medium resolution.
- Grating fixed position.
- Flat focal field to accomodate multichannel detector.
- Spectral range : from 170 nm to 10 nm.
- Exit arm length : 685 or 306 mm.
- Deviation angle : 140°.
Standard Configuration
TGS 330
- Deviation angle 140°
- La = 292 mm
- Lb = 330 mm
- Grating blank dimensions = 12 x 34 x 10 mm3
- Flat field on 40 mm
- Spectral Resolution 5 to 1 Å measured with MCP + CCD
Spectral range |
Grooves/mm |
95-320Å (130-39eV) |
2105 |
| 100-1100Å (124-11eV) |
450 |
155-1700Å (80-7eV) |
290 |
