Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986spie..627..291w&link_type=abstract
IN: Instrumentation in astronomy VI; Proceedings of the Meeting, Tucson, AZ, Mar. 4-8, 1986. Part 1 (A87-36376 15-35). Bellingha
Astronomy and Astrophysics
Astronomy
8
Astronomical Spectroscopy, Echelle Gratings, High Resolution, Assembling, Focusing, Functional Design Specifications, Spectroscopic Telescopes, Wave Dispersion
Scientific paper
An account is given of the innovative design features incorporated in the echelle spectrographs of the Anglo-Australian and William Herschel telescopes, which have been conceived with a view to the matching of the spectrum format to the features of a the University College London Image Photon Counting System. Attention is given to methods employed for the maximization of throughput, including the concept of variable beam size. The echellogram will be displaced in both dispersion directions. Automatic collimation checking will be employed.
Charalambous Andrew
Diego Francisco
Fish Adrian C.
Hirst C. J.
Walker Danielle
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