Accession Number : ADA194769

Title :   Self-Absorption in Copper Hollow Cathode Discharges; Effects on Spectral Lineshape and Absorption Sensitivity.

Descriptive Note : Technical rept.,

Corporate Author : ARIZONA UNIV TUCSON DEPT OF CHEMISTRY

Personal Author(s) : Phillips, Hugh A ; Lancaster, Herbert L ; Denton, M B ; Rozsa, Karoly ; Apai, Pal

PDF Url : ADA194769

Report Date : 04 Feb 1988

Pagination or Media Count : 21

Abstract : The intensity of the hyperfine doublet of the Cu I 324.8 nm transition was observed as a function of current, fill gas, and fill gas pressure for a new design of hollow cathode lamp incorporating a positive column and an enlarged volume cathode cavity. The intensity ratio of the two components, which reflects the degree of self-absorption, and the flame absorption sensitivity were compared with a conventional hollow cathode lamp. Higher intensity, better component ratio, and increased absorption sensitivity was found in the new lamp. Keywords: Hollow cathode; Spectral lineshape; Atomic absorption; Copper; Self absorption.

Descriptors :   *COPPER, *ABSORPTION SPECTRA, ATOMIC PROPERTIES, CATHODES, CAVITIES, FLAMES, GASES, INTENSITY, PRESSURE, RATIOS, SENSITIVITY, VOLUME, HYPERFINE STRUCTURE, SHAPE, SPECTRAL LINES

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE