Abstract
A spectrometer is described which is capable of obtaining an auroral spectrum in 10 sec. with 10 Å resolution. It uses a 4 by 4 in., 6000 lines/cm. grating and parabolic mirrors for focusing. The detector is a 1P21 photomultiplier cooled by dry ice, and the spectrum is recorded by a high-speed magnetic oscillograph. The amplifiers are described and a few sample spectra shown. Some relevant optical equations are collected in an appendix.
Publisher
Canadian Science Publishing
Subject
General Physics and Astronomy
Cited by
32 articles.
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