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首页> 外文期刊>The European physical journal, D. Atomic, molecular, and optical physics >Electron excitation coefficients for 2p and 3p levels of Xe
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Electron excitation coefficients for 2p and 3p levels of Xe

机译：Xe 2p和3p能级的电子激发系数

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摘要

Electron excitation rate coefficients for 2p (2p_1, 2p_2, 2p_3, 2p_4, 2p_5, 2p_6) and 3p (3p_5, 3p_6, 3p_7, 3p_8, 3p_(10)) (in Paschen notation) levels of xenon atom have been measured by using electron drift tube technique. The absolute excitation coefficients were obtained from the optical signal at the anode in Townsend xenon discharges, after correction for detector quantum efficiency. The ionization coefficients were determined from the spatial emission profile. The measurement were made for the electric field to xenon atom number density ratios (E/N) from 90 * 10~(-21) Vm~2 to 10 * 10~(-18) Vm~2. The data were obtained between moderate E/N values where electrons are in equilibrium and very high E/N values where electrons may not be in equilibrium with the local field. It was found that at the highest values of E/N heavy particles do not contribute to the excitation under the present conditions. The absolute excitation coefficients for the studied levels of xenon are to our knowledge the only experimental data available in the literature.
机译：氙原子的电子激发速率系数已通过电子测量了2p（2p_1、2p_2、2p_3、2p_4、2p_5、2p_6）和3p（3p_5、3p_6、3p_7、3p_8、3p_（10））的氙原子能级漂移管技术。校正检测器量子效率后，从Townsend氙气放电阳极的光信号获得绝对激发系数。根据空间发射曲线确定电离系数。测量的电场与氙原子数密度比（E / N）为90 * 10〜（-21）Vm〜2至10 * 10〜（-18）Vm〜2。在电子处于平衡状态的适度E / N值与电子与局部场可能不处于平衡状态的非常高的E / N值之间获得了数据。发现在当前条件下，在最高的E / N值下，重粒子对激发没有贡献。据我们所知，氙气研究水平的绝对激发系数是文献中仅有的唯一实验数据。

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