发射光谱Boltzmann法测量毛细管放电产生的电热高密度等离子体温度之误差分析

Error Analysis of Temperature Measurement by Boltzmann Plot in Atomic Emission Spectroscopy for a High-density Plasma Produced by Electrothermal Capillary Discharge

本文详细地分析了目前文献报道的 :采用发射光谱Boltzmann法 ,测量毛细管放电产生的电热高密度等离子体温度时 ,产生误差的原因。当正确地选择光谱参数———谱线上能级统计权重g、跃迁几率A和上能级能量Ei ———Boltzmann法测量毛细管放电产生的电热高密度等离子体温度时 ,实验可信度可高达 99%～ 99 5 % ,测量误差仅为± 6 5 %。

The present paper analysed in detail the reasons for the errors found in the literature when Boltzmann plot was used for the temperature measurement of a high-density plasma produced by electrothermal capillary discharge. The reliability of experiment can reach as high as 98%-99.5% and the error is only +/-6.5% when the spectroscopic parameters, such as transition probability A, statistical weight of upper level g, and the energy of upper level E-i, are selected correctly for the temperature measurement of a high-density plasma produced by electrothermal capillary discharge by Boltzmann plot in atomic emission spectroscopy.