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A new method of photographic evaluation in spectrographic analysis

✍ Scribed by Argyle, A. ;Price, W. John

Publisher
Wiley (John Wiley & Sons)
Year
1948
Weight
458 KB
Volume
67
Category
Article
ISSN
0368-4075

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✦ Synopsis

Abstract

A simple nomographical method of evaluation of minor constituents is given which, provided that the density values all fall on the straight line portion of the H & D curve of the emulsion used, is independent of gamma variation. When the nomograph is drawn, not only docs it correct for changes in gamma across one plate, but also from plate to plate of any type, thus obviating the need for repeated standardization.

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