マイクロ秒領域におけるパルス動作ホローカソードランプの過渡発光特性

概要

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In order to evaluate applicability of the pulse operation method to atomic absorption spectrophotometry, time-resolved emission measurements of pulsed hollow cathode lamps have been carried out. In addition to the use of an analog-type time-resolved spectrophoto meter including a medium size monochromator, a time-resolved Fabry-Perot interferometer system utilizing photon counting technique is newly constructed and applied to transient observation of resonance line profiles. By repetitively applying large pulse current of short duration to conventional hollow cathode lamps, intense emission of the resonance lines of the cathode elements is obtained. The light intensity during the pulse is ten to hundred times as large as that with equivalent steady current operation. The line profile measurement shows that conspicuous line broadening and peak shift are not observed.
社団法人日本分光学会の論文