ALFOSC Arc Lamps
The arc lamps currently available for ALFOSC
Spectral lamps from Osram:
Ne, He, Cs, Zn (spare He and Ne)
Hollow cathode lamps from Cathodeon:
Nb, Cu, Th (spare Nb)
The Osram Cs and Zn lamps use Ar as a filler gas. The Cathodeon Nb and
Th lamps also have Ar as a filler gas, while the Cu lamp has Ne as a filler.
All this means that the Cs, Zn, Nb and Th lamps all give Ar lines as well as
lines from the appropriate element while the Cu lamp gives Ne lines as
well as Cu lines.
Beware! the lines from Nb and Cu are all faint and generally require a
integration of up to 20 minutes to detect them!
On all arc maps of the ThAr lamp only Ar lines have been identified.
Also: He,Ne,Ar Line List (42k gzipped postscript), and an overview of IRAF line lists.
Documentation on
lamp / mirror control software
including how to change the labels after having changed the lamps.
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