device for automatic photoelectric control of the analytical gap for emission spectrographs
By: by John A. Dietrich, Elmo F. Cooley, and Kenneth J. Curry.
Contributors: Cooley, Elmo F.; Curry, Kenneth J.; Geological Survey (U.S.)
Series: Geological Survey circular ; 748; Geological Survey circular -- 748.
Publisher: Dept. of the Interior, Geological Survey; Branch of Distribution, U.S. Geological Survey
Published: 1977
Place of publication: [Reston, Va.]; Arlington, Va
Language: eng
Subjects: Spectrum analysis -- Instruments.; Emission spectroscopy.; Optoelectronic devices.
Notes: Bibliography: p. 5.