1 February 1975 An Image Intensification and Video Recording System for Astronomical Observations
Author Affiliations +
Abstract
An airborne telescope utilizing a scanning interferometer and video recording system has been used by the Los Alamos Scientific Laboratory for coronal-emission-line-profile measurements during the total solar eclipses of 1972 and 1973. A 250 mm diameter f/8.0 achromatic doublet refractor served as the objective lens, and a pressure scanned Fabry-Perot interferometer with narrow band transmission filters provided 0.005 nm spectral resolution of the selected emis-sion lines. A variable-gain channel-plate image intensifier, fiber-optically coupled to an Sb2 S3 vidicon tube, was adapted for use as a high sensitivity image detector. At maximum sensitivity this system was capable of recording a video image with signals as small as 5 x 10-9 J/m2 incident upon the in-tensifier photocathode. The vidicon tube was scanned at a rate of 60 fields per second in a 500-line, non-interlaced television format. The composite video signals were recorded on standard video tapes from which they were digitized for subsequent computer processing.
Marvin M. Hoffman, Mort Sanders, Donald H. Liebenberg, "An Image Intensification and Video Recording System for Astronomical Observations," Optical Engineering 14(1), 140176 (1 February 1975). https://doi.org/10.1117/12.7971770 . Submission:
JOURNAL ARTICLE
5 PAGES


SHARE
RELATED CONTENT

Image System For The Middle Ultraviolet
Proceedings of SPIE (December 10 1986)
Design for a 1 5 um cryogenic echelle spectrograph...
Proceedings of SPIE (July 01 1990)
Photon-Counting Reticontm Detector
Proceedings of SPIE (May 03 1979)
Results from a pinhole spatial filtering system at COAST
Proceedings of SPIE (February 21 2003)

Back to Top