| 等离子体在电容放电中的高低频振荡与不稳定因素 |
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| 引用本文： | 周筑文,邓明森,孙光宇.等离子体在电容放电中的高低频振荡与不稳定因素[J].贵州教育学院学报,2007,18(4):1-5. |
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| 作者姓名： | 周筑文 邓明森 孙光宇 |
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| 作者单位： | [1]贵州教育学院物理系,贵州贵阳550003 [2]加利福尼亚大学伯克利分校电子工程及计算机科学系,美国加州94720 |
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| 基金项目： | 贵州省教育厅自然科学基金 |
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| 摘 要： | 已经在连接外围接地舱的主电容放电舱里观察到了氩气驰豫振荡.等离子体振荡是通过从主放电舱显示出来的随时间变化的光发射现象观测到,高频(75.37kHz)驰豫振荡在100mT 和8w的吸收功率,低频(2.72Hz)驰豫振荡在100mT和325W的吸收功率.随时间变化的光发射强度以及等离子体密度也通过Langmuir探针探测到.理论结果与实验有较好的吻合.
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| 关 键 词： | 等离子体 驰豫振荡 电容放电 |
| 文章编号： | 1002-6983（2007）04-0001-05 |
| 收稿时间： | 2007-05-09 |
| 修稿时间： | 2007年5月9日 |
Instability parameters of high and low frequency oscillations in plasma central discharge and periphery region |
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| M.A.Lieberman,Sungjin Kim,ZHOU Zhu-wen,DENG Ming-sen,SUN Guang-yu,M.A.Lieberman,Sungjin Kim.Instability parameters of high and low frequency oscillations in plasma central discharge and periphery region[J].Journal of Guizhou Educational College(Social Science Edition),2007,18(4):1-5. |
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| Authors: | MALieberman Sungjin Kim ZHOU Zhu-wen DENG Ming-sen SUN Guang-yu MALieberman Sungjin Kim |
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| Institution: | 1.Department of Physics,Guizhou Education Institute,Guiyang,Guizhou 550003,China;2.Department of Electrical Engineering and Computer Sciences,University of California,Berkeley,CA 94720,U.S.A |
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| Abstract: | We have observed relaxation oscillations in a capacitive discharge connected to a peripheral ground chamber,in Argon gas.The plasma oscillations,observed from time-varying optical emission from the main discharge chamber,show,for example,a high frequency(75.47kHz) relaxation oscillation,at 100mTorr and 8W absorbed power,and a low frequency(2.72Hz) relaxation oscillation,100mTorr and 325W absorbed power.Time-varying optical emission intensity and plasma density were also detected with a Langmuir probe.The theory agreed well with experiments. |
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| Keywords: | plasma relaxation oscillation capacitive discharge |
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