Quantitative measurements of oxygen atom density using LIF
Quantitative measurements of oxygen atom density using LIF
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使用 LIF 定量测量氧原子密度
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
B. Dubreuil
中科院分区：
文献类型：
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作者：
P. Pezé;A. Paillous;J. Siffre;B. Dubreuil
利用激光诱导荧光（LIF）技术研究了用于模拟航天器表面防护材料（CASOAR）氧化机理的脉冲原子氧源。首次在O2低压微波激发等离子体放电后进行了氧原子密度的LIF测量。看来荧光产率强烈地依赖于激光束聚焦条件。为了对实验进行正确的分析，必须考虑到这种依赖性。因此，LIF测量似乎是定量正确的，并与NO2滴定的结果一致。
A pulsed atomic oxygen source, used to simulate oxidization mechanisms of spacecraft surface protective material (CASOAR), is probed by LIF. LIF measurements of oxygen atom density were first conducted in the post-discharge of an O2 low-pressure microwave excited plasma. It appears that the fluorescence yield depends strongly on the laser beam focusing conditions. This dependence must be taken into account for proper analysis of the experiment. Thus, LIF measurements appear to be quantitatively correct and consistent with the results of NO2 titration.