Observation of microwave in-liquid plasma using high-speed camera
Observation of microwave in-liquid plasma using high-speed camera
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DOI：
10.1143/jjap.46.6015
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发表时间：
2007-09-01
期刊：
影响因子：
--
通讯作者：
Toyota, Hiromichi
中科院分区：
文献类型：
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作者：
Mukasa, Shinobu;Nomura, Shinfuku;Toyota, Hiromichi
使用高速摄像机观察 2.45 GHz 微波液态等离子体正十二烷的行为。等离子体生成前的系统压力为1或100 hPa。等离子体是在尖锐电极的尖端产生的，之后在电极上的液体中的气泡中发现等离子体。等离子体不会连续发光。当等离子体消退时，光强分布在1到100hPa之间变化。对气泡内发热引起的气泡行为进行了数值模拟。为了匹配实验结果，在 1hPa 压力下产热持续 0.9 ms，并在 100hPa 压力下持续整个模拟。内部温度范围为2,000至4,000K，化学反应产生的蒸气正十二烷与氢气的比率在1 hPa时几乎处于同一数量级，在100 hPa时约为1%。
The behavior of 2.45 GHz microwave in-liquid plasma n-dodecane was observed using a high-speed camera. The system pressure before plasma generation was 1 or 100 hPa. The plasma was generated at the tip of a sharpened electrode, after which the plasma was found in a bubble in the liquid on the electrode. The plasma did not continuously emit light. The profile of light intensity varied between 1 and 100hPa when the plasma faded. The behavior of the bubble by heat generation in the bubble was numerically simulated. To match experimental results, the heat generation was continued for 0.9 ms at 1hPa and throughout the simulation at 100hPa. The internal temperature ranged from 2,000 to 4,000K, and the ratio of vapor n-dodecane to hydrogen produced by chemical reaction was at almost the same order at 1 hPa and approximately 1% at 100 hPa.