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Spectrochemical computer analysis - instrumentation

May 1, 1973

A microphotometer is described for making magnetic tape recordings of spectra 480 mm long from 102- by 508-mm photographic plates. Transmission readings are recorded at a rate exceeding 1,300 per second for every 5.08 um of length of the spectrum, A two-line
cadmium fiducial line system and a developing tank for 102- by 508-mm plates also are described as equipment ancillary to a system of
computer spectral analysis applied to the spectrochemical analysis of geologic materials.

Publication Year 1973
Title Spectrochemical computer analysis - instrumentation
Authors A.W. Helz
Publication Type Article
Publication Subtype Journal Article
Series Title Journal of Research of the U.S. Geological Survey
Index ID 70160814
Record Source USGS Publications Warehouse