Energy deposition of heavy ions in the regime of strong beam-plasma correlations
Energy deposition of heavy ions in the regime of strong beam-plasma correlations
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DOI：
10.1103/physreve.67.037401
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发表时间：
2003-03-01
影响因子：
2.4
通讯作者：
Schlanges, M
中科院分区：
文献类型：
--
作者：
Gericke, DO;Schlanges, M
研究了高电荷态离子在稠密等离子体中的能量损失。所应用的模型包括通过量子T矩阵处理的横截面强的束等离子体相关。动态屏蔽效应是通过使用一个Debye的速度依赖的屏蔽长度，保证了已知的低和高束流速度限制的潜力。结果表明，这种唯象模型是在很好的协议与模拟数据非常高的束-等离子体耦合。停止过程的分析表明，相当长的范围和较少的本地化的能量沉积，如果强耦合处理得当。
The energy loss of highly charged ions in dense plasmas is investigated. The applied model includes strong beam-plasma correlation via a quantum T-matrix treatment of the cross sections. Dynamic screening effects are modeled by using a Debye-like potential with a velocity dependent screening length that guarantees the known low and high beam velocity limits. It is shown that this phenomenological model is in good agreement with simulation data up to very high beam-plasma coupling. An analysis of the stopping process shows considerably longer ranges and a less localized energy deposition if strong coupling is treated properly.