Table 2:
List of AMBER spectrograph modules with acronym definition and functions.
Optical elements |
Functions |
SPG-INW |
Input slit. |
Input Wheel |
Image cold stop. |
SPG-CSY |
Spectrograph optics cooling. |
Cooling System |
Vacuum, temperature, and nitrogen |
|
level control. |
|
Thermal flux reduction. |
SPG-ISD |
Cold stop for the spatial |
Imaging and Stopping |
filter mode (thermal flux reduction). |
Device |
Technical operations (wide diaphragm). |
|
Calibration (dark). |
|
Beam collimation. |
SPG-PMW |
Thermal flux reduction. |
Pupils Masks Wheel |
Beam size definition. |
SPG-IPS |
Thermal flux reduction. |
Interferometric Photometric |
Beam splitting. |
Splitter |
Beams deviation. |
|
Photometric images deflection on DET. |
SPG-DIU |
Spectral dispersion. |
Dispersion Unit |
Spectral wavelength selection. |
|
Spectral resolution selection. |
|
Spectral modulation. |
SPG-CHA |
Beam combination. |
Camera |
Beam focalization. |
|
Sampling. |