Testing the Bragg cell of an acousto-optical spectrometer for radio astronomy

Details Testing the Bragg cell of an acousto-optical spectrometer for radio astronomy Testing the Bragg cell of an acousto-optical spectrometer for radio astronomy

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011rmxac..40..305h&link_type=abstract

XIII Latin American Regional IAU Meeting (Eds. W. J. Henney & S. Torres-Peimbert) Revista Mexicana de Astronomía y Astrofísica (

Physics

Optics

Instrumentation: Adaptive Optics, Instrumentation: Spectrometers

Scientific paper

In this work we present the test of the relation between the diffraction angle by a Bragg cell (acousto-optical cell), and the position in a linear photo-detector of the focused beam for an Acousto-Optical Spectrometer (AOS). The evaluation was made comparing a synthetic electrical signal spectrum obtained with our AOS against a calibrated spectrum. We discuss the current optical arrangement and propose improvements for the final version of this instrument.

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