Molecular Dynamics Simulations of Electron-Ion Temperature Equilibration in an SF6 Plasma
Molecular Dynamics Simulations of Electron-Ion Temperature Equilibration in an SF6 Plasma
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DOI：
10.1103/physrevlett.102.205004
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发表时间：
2009-05-22
影响因子：
8.6
通讯作者：
Benage, John F.
中科院分区：
文献类型：
--
作者：
Benedict, Lorin X.;Glosli, James N.;Benage, John F.
本文利用经典分子动力学方法研究了双温SF6等离子体中的电子-离子温度平衡。根据洛斯阿拉莫斯国家实验室目前正在进行的实验，我们选择密度为1.0 × 10（19）SF（6）分子/cm（3），初始温度为T-e=100 eV和T-S=T-F=15 eV。我们计算的弛豫时间位于两个常用的变体之间的Landau-Spitzer弛豫公式调用静态屏蔽。与最近的理论方法所作的预测相比，也发现了差异。这些差异应该足够大，以便在即将进行的实验中进行测量。
We use classical molecular dynamics to investigate electron-ion temperature equilibration in a two-temperature SF6 plasma. We choose a density of 1.0x10(19)SF(6) molecules per cm(3) and initial temperatures of T-e=100 eV and T-S=T-F=15 eV, in accordance with experiments currently underway at Los Alamos National Laboratory. Our computed relaxation time lies between two oft-used variants of the Landau-Spitzer relaxation formula which invoke static screening. Discrepancies are also found when comparing to the predictions made by more recent theoretical approaches. These differences should be large enough to be measured in the upcoming experiments.