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| technical:mtr2 [2026/06/30 09:33] – etienne | technical:mtr2 [2026/09/28 15:41] (current) – [Schematics of MTR2] saida | ||
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| The following table present typical values of the MTR2 spectral resolution, δλ, for different wavelength and F2 entrance slit width. | The following table present typical values of the MTR2 spectral resolution, δλ, for different wavelength and F2 entrance slit width. | ||
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| - | ^ | + | | ::: |
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| - | | | + | ^ MTR2 ^ |
| - | | | + | ^ entrance |
| + | ^ slit width ^ | ||
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| The moving parts are: | The moving parts are: | ||
| * The predisperser gratings selection table (EM35). There are 3 selectable predispersers, | * The predisperser gratings selection table (EM35). There are 3 selectable predispersers, | ||
| - | * PThe predisperser rotates about the Y axis to change its grating incidence angle (EM37). This allows shifting | + | * The predisperser rotates about the Y axis to change its grating incidence angle (EM37). This allows shifting |
| * The mask plate translates in the Z direction (EM39) | * The mask plate translates in the Z direction (EM39) | ||
| * The echelle grating rotates about the Y axis to change its grating incidence angle a (EM32). This allows shifting the highres spectrum along Z at the SP2 output. | * The echelle grating rotates about the Y axis to change its grating incidence angle a (EM32). This allows shifting the highres spectrum along Z at the SP2 output. | ||
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| * manual setup of the spectral cameras at the SP2 output | * manual setup of the spectral cameras at the SP2 output | ||
| Data and formulae for the MTR2 can be found in the following document: \\ | Data and formulae for the MTR2 can be found in the following document: \\ | ||
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| ==== Spectrograph simulation tools ==== | ==== Spectrograph simulation tools ==== | ||
| These tools allow the observer to quick check the feasibility of a setup | These tools allow the observer to quick check the feasibility of a setup | ||
| - | * [[this> | + | * [[this> |
| - | * [[this> | + | * [[this> |
| Observers can also check the [[technical: | Observers can also check the [[technical: | ||
