Abstract

A telescope–spectrograph employing a photon-counting microchannel plate (MCP)–CODACON detector has been built, tested, and flown on a sounding rocket. The detector uses a curved-channel MCP proximity focused onto a coded anode array of 1024 channels spaced 25.4-mm center to center. High quantum efficiency is obtained by depositing a cesium iodide photocathode on the front surface of the MCP. The instrument has obtained an ultraviolet (1500–1800-Å) spectrum of Jupiter with a spectral resolution of 8 Å, which is higher than that of any previously reported observation in this wavelength range.

© 1982 Optical Society of America

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