A system for complete computer control of the important current waveform variables in the operation of pulsed hollow cathode lamps is described and characterized. The system is shown to provide a highly flexible approach for the rapid accumulation of data on lamp operating characteristics. By implementing a simplex optimization technique with the system, it is shown that a selected lamp response (average peak intensity or integrated peak intensity) can be observed as a function of one variable, while all other variables are at values which result in an optimized response. This procedure, which probably could not be carried out without a closed loop system such as that described, avoids the potential difficulties of the one-factor-at-a-time approach. Results are reported for optimization studies of two iron hollow cathode lamps, for a response surface mapping experiment, and for examination of the pulse shapes of iron, calcium, vanadium, and aluminum hollow cathode lamps.
E. R. Johnson, C. K. Mann, and T. J. Vickers, "Computer Controlled System for Study of Pulsed Hollow Cathode Lamps," Appl. Spectrosc. 30, 415-422 (1976)
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