Abstract This review described a noticeable feature of pulsed radio-frequency-driven glow discharge plasma for atomic emission spectrometry. The temporal response of the emission signal, generated by the pulsed discharge, comprised a sharp pre-peak and the subsequent plateau portion having smaller emission intensities each for the discharge pulse, in which the intensity of the pre-peak was 10–20 times as large as the plateau-stage intensity, depending on the discharge parameters. Suggested mechanisms for this phenomenon were introduced from several published papers, which were based on a temporal variation in a degree of self-absorption during a pulse duration, on generation of gas pressure wave, or on a transient increase of the discharge current at the initial edge of a pulse which thus elevated the gas temperature. It was also mentioned that such emission characteristics could be utilized to obtain better analytical performance in the optical emission spectrometry. A detection method, associated with the introduction of pulsed bias current, was effective for controlling the emission response from the pulsed plasma, because it totally elevated the emission intensity of the plateau portion rather than the pre-peak with little change in the background level.

中文翻译：

---

用于原子发射分析的脉冲辉光放电等离子体的瞬态信号特性

摘要 该综述描述了用于原子发射光谱的脉冲射频驱动辉光放电等离子体的一个显着特征。由脉冲放电产生的发射信号的时间响应包括一个尖锐的前峰值和随后的平台部分，每个放电脉冲的发射强度较小，其中前峰值的强度是放电脉冲的 10-20 倍与平台阶段强度一样大，取决于放电参数。几篇已发表的论文中介绍了这种现象的建议机制，这些论文基于脉冲持续时间期间自吸收程度的时间变化、气压波的产生或初始放电电流的瞬态增加。脉冲的边缘，从而提高了气体温度。还提到可以利用这种发射特性来获得更好的光学发射光谱分析性能。一种与引入脉冲偏置电流相关的检测方法对于控制脉冲等离子体的发射响应是有效的，因为它完全提高了平台部分的发射强度，而不是背景水平几乎没有变化的前峰。