Spectroscopic Studies of Non-equilibrium Plasmas

非平衡等离子体的光谱研究

• 批准号: 08309005
• 负责人: FUJIMOTO Takashi
• 金额: $ 4.22万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08309005/
• 关键词: anisotropic velocity distribution; non-Maxwellian distribution; tokamak plasmas; Iascr-produced plasmas; plasma polarization spectroscopy; non-equilibrium lonization balance; solar plasmas; super nova remnant; 非マクスウル分布; プラズマ; 電子速度分布; 非等方性; トカマ

1.Plasma polarization spectroscopy on the tokamak plasma has been further developed, and the experimental data are now highly reliable.2.The basic formulation of the kinetic model which relates the plasma polarization experiment to the anisotropic velocity distribution of electrons has been developed, and the model has been established for berylliumlike ions.3.It was found that the plasma produced by a short pulsed laser light reveals the spectum which is a typical example of the recombining plasma, and that the low-energy electrons have an anisotropic velocity distribution.A new excitation-deexcitation mechanisms which have been predicted to play a major role in non-equilibirum dense plasmas have been experimentally verufied.5.The polarimeter for observation of the solar plasmas has begun to produce the data with high precision, and various measurements are now being made.6.Observations and modelling of super nove remnants have been developed, and various new information is being obtained.6.The similaritieis between the laboratory plasmas and the astrophysical plasmas have become clear, together with their differences.

1.进一步发展了托卡马克等离子体极化谱，使实验数据具有较高的可靠性。2.建立了等离子体极化实验与电子各向异性速度分布之间的动力学模型的基本公式，3.研究发现，短脉冲激光产生的等离子体中，是复合等离子体的一个典型例子，低能电子具有各向异性的速度分布，实验验证了一种新的激发-去激发机制，这种机制被预言在非平衡稠密等离子体中起主要作用。5.用于观测太阳等离子体的偏振仪已经开始产生高精度的数据，6.对超新星遗迹的观测和模拟已经发展起来，并且正在获得各种新的信息。6.实验室等离子体和天体物理等离子体之间的相似性和差异已经变得清晰。

项目成果

T.Watanabe: "Energetics of an active region deduced from heliumlike ・・・" Publ.Astron.Soc.Japan. 47. 115 (1997)

T.Watanabe：“从类氦推导的活跃区域的能量......”Publ.Astron.Soc.Japan 47. 115 (1997)。

T.Fujimoto: ""Polarization of impurity emission lines from a tokamak plasma"" Phys.Rev.E54-3 R2240-43. (1996)

T.Fujimoto：“托卡马克等离子体的杂质发射线的偏振”Phys.Rev.E54-3 R2240-43。

T.Kato: ""X-ray spectral analysis of YOHKOH Bragg crystal spectrometer data on a 1992 September 6 flare : The blueshift component and ion abundances"" Astrophys.J.492. 822-832 (1998)

T.Kato：“1992 年 9 月 6 日耀斑的 YOHKOH Bragg 晶体光谱仪数据的 X 射线光谱分析：蓝移分量和离子丰度”“Astrophys.J.492。

H.Yoneda: "Large anisotropy of the electron distribution in the・・・" Phys.Rev.E. 56. 988-991 (1997)

H.Yoneda：“电子分布的大各向异性……”Phys.Rev.E 56. 988-991 (1997)

T.Fujimoto: "Plasma polarization spectroscopy"" Plasma Phys.Control.Fusion. 39. 1267-94 (1997)

T.Fujimoto：“等离子体偏振光谱”” Plasma Phys.Control.Fusion. 39. 1267-94 (1997)