Gas ionization solar spectral monitor

James S. Vickers; Daniel M. Cotton; Timothy A. Cook; Supriya Chakrabarti

doi:10.1117/12.155597

1 December 1993 Gas ionization solar spectral monitor

James S. Vickers, Daniel M. Cotton, Timothy A. Cook, Supriya Chakrabarti

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Optical Engineering, Vol. 32, Issue 12, (December 1993). https://doi.org/10.1117/12.155597

Abstract

We are currently developing an instrument free from optical components to measure the full-disk solar spectrum in the extreme-ultraviolet (EUV) regime covering wavelengths from 75 to 400Å. The instrument consists of a windowless noble gas ionization cell followed by a toroidal electrostatic analyzer to spatially disperse photoelectrons as a function of their energies. A microchannel plate based position sensitive detector is used to detect individual electrons, indirectly returning the solar EUV spectrum. The instrument was launched aboard a NASA Black Brant sounding rocket on October 27, 1992. Power to this instrument was lost early in the flight, however, and a reflight is planned for October 1993. Calibration results for the He II 304-Å line are presented.

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James S. Vickers, Daniel M. Cotton, Timothy A. Cook, and Supriya Chakrabarti "Gas ionization solar spectral monitor," Optical Engineering 32(12), (1 December 1993). https://doi.org/10.1117/12.155597

Published: 1 December 1993

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