The helium (He) non-thermal atmospheric pressure plasma jet (APPJ) source was configured, and the He spectra were measured by applying AC power to the source. A He collisional-radiative (CR) model was developed to investigate the He spectra obtained from the APPJ source. Different atmospheric pressure (AP) processes were evaluated, and the dominant processes among them that contribute to the He spectra were determined. The plasma parameters of the APPJ were determined using the He CR model, and the He spectra were successfully reproduced. The electron density was determined to be ∼ 2 × 10 12 cm − 3 between the electrodes of the APPJ, and ∼ 9 × 10 11 cm − 3 outside the quartz tube, for a frequency and bias of an AC voltage source of 5 kHz and 10 kV p . p, respectively. A parametric study was performed to explain the behavior of the electron temperature and electron density of APPJ.

中文翻译：

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基于碰撞-辐射模型的氦常压等离子体射流研究

配置氦 (He) 非热常压等离子体射流 (APPJ) 源，并通过向源施加交流电源来测量 He 光谱。开发了 He 碰撞辐射 (CR) 模型来研究从 APPJ 源获得的 He 光谱。评估了不同的大气压 (AP) 过程，并确定了其中对 He 光谱有贡献的主要过程。利用He CR模型确定了APPJ的等离子体参数，成功再现了He谱。对于 5 kHz 的交流电压源的频率和偏置，APPJ 电极之间的电子密度确定为 ~ 2 × 10 12 cm - 3 ，石英管外部的电子密度为 ~ 9 × 10 11 cm - 3 和10 kV p。p，分别。