重新检查Hii Paschen-α的Stark宽度和转移:使用激光诱导等离子体,森散射和计算机模拟的研究
Krzysztof Dzierżęga1, Franciszek Sobczuk1, Tomasz Krehlik1
1Marian Smoluchowski Institute of Physics, <a href="https://ror.org/03bqmcz70">Jagiellonian University</a>, ul. Łojasiewicza 11, 30-348 Kraków, Poland.
Physical review. E
|July 18, 2024
概括
我们在激光诱导等离子体中研究了II (He II) 帕申-α线的斯塔克概况. 对于斯塔克宽度和移位的实验和理论结果显示出极好的一致性,验证了我们的等离子体诊断和理论模型.
科学领域:
- 等离子体物理学的物理学
- 原子光谱学 原子光谱学
- 天体物理等离子体
背景情况:
- 谱线的斯塔克概况对于血诊断至关重要.
- II (He II) 光谱线在各种天体物理和实验室等离子体中很重要.
- 准确的斯塔克形状测量需要详细的理论模型.
研究的目的:
- 在实验和理论上研究He II Paschen-α线的斯塔克特征.
- 用光谱线分析来确定等离子体参数,如电子密度和温度.
- 通过实验数据验证先进的理论模型.
主要方法:
- 激光诱导的等离子生成.
- 双色森散射用于独立的血诊断 (电子密度和温度).
- 计算机模拟包括完整的库伦相互作用,用于斯塔克的个人资料计算.
主要成果:
- 实验和理论的斯特克宽度和转移对He II帕申-α线显示协议在5%以内.
- 精确确定了电子密度 (8.1×10^224.46×10^24 m^-3) 和温度 (1.27.6 eV) 的等离子参数.
- 在密集的等离子体中扩大光谱线的验证理论模型.
结论:
- 这项研究证实了斯塔克形状计算理论模型的准确性.
- 提供使用He II光谱线进行血诊断的可靠方法.
- 提供了可用于广泛的等离子体条件的线宽和线移的实际分析近似值.
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