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Monochromators
& Spectrographs >> Plane Grating Monograph
Vacuum UV - Plane Grating Monograph
(PGM-PGS)
PGM-PGS Optical Layout
- Monochromator and Spectrograph (aberration corrected plane holographic grating).
- Medium resolution.
- Exit slit or not.
- Flat focal field to accomodate multichannel detector.
- Spectral range : from 4 eV (250 nm) to 415 eV (3 nm).
- Exit arm length : from 200 to 4500 mm.
- Deviation angle : 165°.
Standard Configurations
- Deviation angle 165°
- La = 500 mm
- Lb = 445 mm
- Grating blank dimensions = 30 x 70 x 15 mm3
- Flat field on 25 mm
Spectral range |
Grooves/mm |
Resolution (Å) |
30-150Å (413-83eV) |
1800 |
- |
150-350Å (83-35eV) |
800 |
- |
30-200Å (413-62eV) |
450 |
- |
30-500Å (413-25eV) |
200 |
- |
- Deviation angle 165°
- La = 255 mm
- Lb = 200 mm
- Grating blank dimensions = 20 x 50 x 20 mm3
- Flat field on 25 mm
Spectral range |
Grooves/mm |
Resolution (Å) |
40-200Å (310-62eV) |
1800 |
- |
100-400Å (124-31eV) |
800 |
- |
160-800Å (77-15eV) |
450 |
- |
