Sciamma Ella M, Bengtson Roger D, Rowan W L, Keesee Amy, Lee Charles A, Berisford Dan, Lee Kevin, Gentle K W
The University of Texas at Austin, 1 University Station Austin, Texas 78712, USA.
Rev Sci Instrum. 2008 Oct;79(10):10E324. doi: 10.1063/1.2953577.
We present a method to infer the electron temperature in argon plasmas using a collisional-radiative model for argon ions and measurements of electron density to interpret absolutely calibrated spectroscopic measurements of argon ion (Ar II) line intensities. The neutral density, and hence the degree of ionization of this plasma, can then be estimated using argon atom (Ar I) line intensities and a collisional-radiative model for argon atoms. This method has been tested for plasmas generated on two different devices at the University of Texas at Austin: the helicon experiment and the helimak experiment. We present results that show good correlation with other measurements in the plasma.
我们提出了一种方法，利用氩离子的碰撞辐射模型和电子密度测量值来推断氩等离子体中的电子温度，以解释对氩离子（Ar II）谱线强度进行的绝对校准光谱测量结果。然后，可以使用氩原子（Ar I）谱线强度和氩原子的碰撞辐射模型来估算中性密度，进而估算该等离子体的电离度。该方法已在德克萨斯大学奥斯汀分校的两种不同设备上产生的等离子体中进行了测试：螺旋波实验和螺旋磁镜实验。我们给出的结果表明，与等离子体中的其他测量结果具有良好的相关性。
