初始充气密度对毛细管放电泵浦的软X射线激光的影响

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Influence of initially filled Ar gas density oncapillary discharge-pumped soft X-ray laser

1.
Institute of Applied Physics and Computational Mathematics,P.O.Box 8009,Beijing 100088,China;
2.
Institute of Science,Harbin Institute of Technology,Harbin 150001,China;
3.
China Institute of Atomic Energy,P.O.Box 275,Beijing 102413,China

摘要: 利用哈尔滨工业大学的毛细管放电装置的放电参数，对放电过程中毛细管内初始氩气密度的变化对等离子体状态和类氖氩离子3p-3s跃迁线的增益系统的影响进行了全过程的理论模拟计算。给出了毛细管放电中等离子体状态和增益系数的空间分布的时间演变过程。理论计算表明能够出现增益的密度范围比较宽，这对于实验是有利的。现有放电参数下，选取初始氩气密度在气压为40~80 Pa情况对获取好的实现结果是比较理想的。
- 初始密度 /
- 毛细管放电 /
- 等离子体状态 /
- 增益系数
Abstract: In this paper the simulation of the influence of initially filled Ar density on the plasma conditions and the gain coefficient of 3p-3s transition of Ne-like Ar ions in capillary discharge pumped soft X-ray laser is presented. The parameters of discharge generator，which is located in Harbin Institute of Technology are used in the simulation. The temporal evolvement of spatial distributions of capillary discharge produced plasma conditions and gain coefficient are shown. The results shows that the extension of Ar gas density which the gain can be got is sufficiently wide and it is very useful for experiment. Choosing the initial pressure of 40~80 Pa in capillary is the best for getting good results.
- initial density /
- capillary discharge /
- plasma condition /
- gain coefficient

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