Wavelength-dependent enhancement of DCP metal lines by saline matrices |
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| Authors: | DeLyle Eastwood Martha Schulz Hendrick Myron H Miller |
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| Institution: | U.S. Coast Guard Research and Development Center, Avery Point, Groton, Connecticut 06340, U.S.A.;Department of Mechanical Engineering, U.S. Naval Academy, Annapolis, Maryland 21402, U.S.A. |
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| Abstract: | Sodium-induced emission enhancement of transition metal resonance lines are measured in a d.c. plasma (DCP) for wavelengths from 210 to 395 nm. Systematic differences in enhancement are observed within individual spectra (Fe I, Ni I, Sc II), and the enhancement and the excitation potential of a line are found to be linearly related. Electron density and apparent temperature data lead to an interpretation of thiis energy dependence within the context of a recombining plasma in partial thermodynamic equilibrium. |
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| Keywords: | Present address: Brookhaven National Laboratory Bldg 830 Upton New York 11973 U S A |
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