Other
Scientific paper
Dec 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aas...185.0806p&link_type=abstract
American Astronomical Society, 185th AAS Meeting, #08.06; Bulletin of the American Astronomical Society, Vol. 26, p.1317
Other
Scientific paper
Using the LES-8 satellite beacon at 38 GHz, the reflector surface of the Submillimeter Telescope has been iteratively measured and set. We have adapted a receiver on loan from the NRAO Tucson to the prime focus location of the SMT reflector. The phase reference signal is obtained through a lens/horn combination at the rear side of the prime focus box. The two phase synchronous IF signals are fed into a digital signal processor box built specially for this experiment. To reach the target surface accuracy of 15 microns rms for this telescope surface, we must extend the measurement accuracy of LES-8 holography method to limits which exceed other, previous experiments. Results of the recent experiments will be presented along with a discussion of the residual surface errors and the measurement limitations. The agreement between the reflector design parameters and the observed surface accuracy will be presented.
Baars Jacob W. M.
Mangum Jeffrey G.
Martin Robert N.
Narayanan Gopal
Peters William L.
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