Accession Number : AD0296230

Title :   SILVER HALIDE MASS SPECTROGRAPHY

Corporate Author : DAVID SARNOFF RESEARCH CENTER PRINCETON N J

Personal Author(s) : WOOLSTON,J.R.

Report Date : 31 DEC 1962

Pagination or Media Count : 1

Abstract : This report describes the results of an investigation to develop techniques for the analysis of silver halides in both solid and powdered form by spark-Source Mass Spectrography, and reports the results of the analysis of several solid samples, and one powdered sample. A technique utilizing a metallic 'core' of gold wire is described for solid samples which, to a large extent, minimizes thermal limitations imposed by the material. With this technique the three solid samples submitted have been analyzed with sensitivities in the 10-100 ppb range for most impurities. A technique for preparing powder samples for analysis by melting the powder and 'growing' a solid sample on a gold wire support or core is described. After such preparation, which can be done with only a small contamination hazard, the samples are essentially equivalent to the solid samples described above. With this technique the one powder sample submitted has been analyzed with sensitivities in the .1 to 1 part per million range. The techniques used for cutting and cleaning these materials are described. (Author)

Descriptors :   *MASS SPECTROSCOPY, BROMIDES, CHLORIDES, CRYSTAL GROWTH, CRYSTALS, HALIDES, PROCESSING, SILVER COMPOUNDS, SOLIDS

Distribution Statement : APPROVED FOR PUBLIC RELEASE