UIST: Engineering: Grism Wheels 2002-2003
UIST has two 9-slot grism wheels which contain the polarimetry prism and the grisms for spectroscopy. The table below lists the grism wheels’ population.
September 2002 – 1 March 2003
Wheel 1 | Wheel 2 | ||||||
---|---|---|---|---|---|---|---|
Posn | Grism | Wavelength Range | Resn 2-pix slit | Posn | Grism | Wavelength Range | Resn 2-pix slit |
1 | IJ 1 | 0.80-1.37 | 1600 | 1 | Short J | 1.02-1.17 | 3700 |
2 | Wollaston prism | – | – | 2 | M | 4.32-5.32 | 2500 |
3 | Long H | 1.60-1.80 | 4000 | 3 | short L | 2.87-3.67 | 2000 |
4 | HK | 1.37-2.48 | 1000 | 4 | Short K | 2.00-2.26 | 4300 |
5 | HK Xdisp 1 | – | – | 5 | long K 1 | 2.20-2.50 | 3600 |
6 | short H | 1.42-1.62 | 4000 | 6 | HK-low1 | for Xdisperser | – |
7 | Blank | – | – | 7 | long L | 3.52-4.16 | 3000 |
8 | KL | 2.20-3.00 | 1700 | 8 | Long J | 1.16-1.31 | 4000 |
9 | open | – | – | 9 | open | – | – |
1Not useable – replacement grism or filter on order