激光差拍波等离子体加速装置中约束磁场的计算研究
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摘要: 通过对等离子体发生器建立三维模型，计算得到磁场在该装置中的分布情况。所得结果与实际测量基本一致 ，从而说明所建模型的合理性。通过调节一些参数，对该模型进一步搞清了导致等离子体发生器中真实磁场较实验设计要求偏低的主要原因，并提出了相应的改进方案。Abstract: In laser plasma beat wave accelerator，the strong magnetic field higher than 1500 Guass, which can confine the behavior of plasma, is needed .In this paper, the distrib ution of magnetic field on plasma generator is obtained using OPERA3D procedure. The simulation agrees with the experimental data well. While adjusting some parameters，some factors, which cause the actual magnetic f ield lower than the designed one, are found . Based on this simulation, modification has been given．
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Key words:
- beat wave /
- plasma accelerator /
- confined magnetic field /
- permeability
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