Study of nonlinear behaviors of plasmas

等离子体非线性行为的研究

• 批准号: 03302056
• 负责人: KAWAI Yoshinobu
• 金额: $ 1.86万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Co-operative Research (A)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03302056/
• 关键词: Eddy; Chaos; Dust Plasma; Negative Ion Plasma; Ion Sheath; Rayleigh-Taylor Instability; Process Plasma; Hole Soliton; 徴粒子プラズマ; イオンミ-ス; 電解質プラズマ; 強結合プラズマ

The objectives of this project are to study (1) nonlinear phenomena in a collisionless plasma such as eddy and chaos, (2) behavior of negative ions and dust plasmas, and (3) behavior of strongly coupled plasmas such as laser produced plasma. Obtained results are as follows:(1) New interaction between eddy and eddy was found by examining complex Gintzburg-Landau equation.(2) Large amplitude waves with large wavelength can excite Buneman instability by up-conversion.(3) Theory of chaos in a Hamiltonian system was developed.(4) Quasiperiodic transition to chaos was observed in ion sheath formed around a mesh grid.(5) Dust particles in SiH4 plasma were measured and the experimental conditions for their occurrence were clarified.(6) Attempt to add C_<60> to Q-machine plasma was made.(7) Potential distribution of RF plasma was measured.(8) Experimental conditions for producing RF ring plasma were examined.(9) Relation between laser produced plasma and Rayleigh-Taylor instability was investigated by numerical simulation.

本项目的目标是研究（1）无碰撞等离子体中的非线性现象，如涡流和混沌，（2）负离子和尘埃等离子体的行为，以及（3）强耦合等离子体的行为，如激光产生的等离子体。得到的结果如下：（1）通过考察复Gintzburg-Landau方程，发现了涡与涡之间新的相互作用。(2)具有大波长的大振幅波可以通过上转换激发布尼曼不稳定性。(3)发展了哈密顿系统的混沌理论。(4)在网格周围形成的离子鞘层中观察到了准周期到混沌的转变。(5)测量了SiH_4等离子体中的尘埃粒子，并阐明了其产生的实验条件。(6)尝试<60>向Q机血浆中添加C_。(7)测量了射频等离子体的电位分布。(8)研究了产生射频环形等离子体的实验条件。(9)通过数值模拟研究了激光等离子体与瑞利-泰勒不稳定性之间的关系。

项目成果

Masayoshi Tanaka: "Overdense Plasma Production Using Electron Cyclotron Wares" Journa of The Physical Society of Japan. 60. 1600-1607 (1991)

Masayoshi Tanaka：“使用电子回旋加速器进行过密等离子体生产”日本物理学会杂志。

Ryota Hidaka: "Generation of electron cyclotron resonance plasmas using a circular TE01 mode microwave" Journal of Applied Rhysics. 72. 4461-4462 (1992)

Ryota Hidaka：“使用圆形 TE01 模式微波生成电子回旋共振等离子体”《应用物理学杂志》。

Masayoshi Murata: "ECR Plasma CVD in Different Magnetic Field Configurations" Japanese Journal of Applied Physics. 31. 1499-1502 (1992)

Masayoshi Murata：“不同磁场配置下的 ECR 等离子体 CVD”日本应用物理学杂志。

Akio Komori: "Intermittency during transition between stationary and periodic states in plasmas" Physics Letters A. Vol.170. 439-442 (1992)

Akio Komori：“等离子体中静止状态和周期性状态之间过渡的间歇性”《物理快报 A》第 170 卷。

Ryota Hidaka: "Generation of electron cyclotron resonance plasmas using a circular TE01 mode microwave" Journal of Applied Physics. Vol.72. 4461-4462 (1992)

Ryota Hidaka：“使用圆形 TE01 模式微波生成电子回旋共振等离子体”应用物理学杂志。