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UFES - Ural Fiber Echelle Spectrograph
UFES is a fiber-fed high resolution echelle spectrograph mounted at 1.2m telescope. The device was designed and manufactured jointly by Astrospectroscopy Laboratory and Advanced Design Laboratory SAO RAS. The first light was obtained at night 1-2 of May 2010.
Now the instrument is used for studies of variable stars, the Earth atmosphere and for practical training for students.
Observing time on the UFES is open to proposers from other scientific organizations. To submit your proposal please contact Mr. Vadim Krushinsky via krussh [at] gmail [dot] com (e-mail).
Optical design  |
Optical bench  |
Telescope unit  |
| General | Spectrograph | ||
|---|---|---|---|
| Main mirror | 1.2 m | Optical bench | 2.4×1.2×0.5 m |
| Design | Echelle spectrograph, white pupil |
Collimators | 2 off-axis paraboloids λ/10, FL=1000 mm |
| Focus | Left Nasmyth FL=13 m | Echelle grating | R4(76°), 37.5 g/mm |
| Resolution | 30 000 | Cross-disperser grating | 150 g/mm |
| Wavelength | 3800—7000 А | ||
| N orders | 60 | Camera | CANON 200/1.8 |
| Sensitivity | S/N~50, 9m, 2900sec | CCD | Andor iKon-L 936 |
| Telescope unit | CCD | ||
| Aperture on sky | 5"/10" | Sensor | E2V CCD42-40 BEX2-DD |
| Focal reducer | 1/2 | Active pixels | 2048×2048 |
| Calibration lamp | ThAr | Pixel size | 13.5×13.5 μm |
| Autoguide camera field | 6'×8' | Image area | 27.6×27.6 mm |
| Optical fiber | Camera Control | USB 2.0 | |
| Type | Dry, step index | Cooling | 5-stage peltier cooler with chiller |
| Numerical aperture | 0.12/0.24 | Chip temperature | -95°C |
| Diameter | 150/150 μm | Active area pixel well depth | 150000 e |
| Length | 23 m | Dark current | 4×10-4 e/px/sec |
| Protection tube | PVC with Kelvar | Gain | 0.98-5.3 e/ADU |
| Micro lenses | BK7 output | Readout noise | 3.1-30.8 e/px |
Manual for observer (CCD+chiller) only russian version
