Yuan Ping, Qie Xiu-shu, Lü Shi-hua, Chen Guan-ying, Zhang Guang-shu
College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2006 Apr;26(4):733-7.
The spectrum in the range of 400-600 nm from the first return stroke of an intense cloud-to-ground lightning flash was obtained by a slit-free spectrograph. Applying the atomic structure theory to the research work on lightning spectra, the wavelengths, oscillator strengths and excitation energies of upper levels were calculated for the transitions of related lightning spectrum. Multi-configuration Dirac-Fock method was employed in the calculation. From the results, re-identifications were carried out for the lines of 419.0 and 425.3 nm. It was found by spectral analysis combined with corresponding electrical information finds that the spectrum characteristic is closely related to the intensity of lightning discharge, as during an intense lightning return stroke the lines of O II with high excitation energies are enhanced.
利用无狭缝光谱仪获取了强烈云地闪电首次回击在400 - 600纳米范围内的光谱。将原子结构理论应用于闪电光谱的研究工作，针对相关闪电光谱的跃迁计算了上能级的波长、振子强度和激发能。计算中采用了多组态狄拉克 - 福克方法。根据计算结果，对419.0纳米和425.3纳米的谱线进行了重新识别。通过光谱分析结合相应的电学信息发现，光谱特征与闪电放电强度密切相关，因为在强烈的闪电回击过程中，具有高激发能的O II谱线会增强。
