study of oxygen recombination With a double pulse discharge

摘要

oxygen atoms recombination at the wall is studied by time-resolved Optical Emission Spectroscopy in a pulsed discharge. In order to observe the atomic oxygen emission after Discharge pulse, it is indispensable to re-excite O atoms because the lifetime of O atoms Is short. Here is proposed a technique based on a double pulse excitation. Atomic oxygen, Created during the main discharge pulse, is probed in time after-glow with a diagnostic Pules.