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首页> 外文期刊>Journal of spectroscopy >Retrieval of Total Scattering Cross Sections of Molecules from Inhomogeneously Broadened Absorption Lines
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Retrieval of Total Scattering Cross Sections of Molecules from Inhomogeneously Broadened Absorption Lines

机译：从不均匀加宽的吸收谱线检索分子的总散射截面

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摘要

A new method of retrieving quantitative information on the hard, soft, and diffraction collision’s frequencies from inhomogeneously pressure-broadened line profiles was proposed and tested. The essence of the method lies in the processing of recorded profiles using various profiles’ models containing these frequencies treated as adjustable parameters in different manners. Three self-broadened H2O absorption lines free of an instrumental function were processed with the use of four model line profiles. Retrieved set of pressure line broadening and narrowing constants allows finding out the sought frequencies. The estimation of the total scattering cross section, ∼630 Å2, in pure water vapor was made.
机译：提出并测试了一种新方法，该方法可以从不均匀的压力扩展线轮廓中检索有关硬，软和衍射碰撞频率的定量信息。该方法的本质在于使用包含各种频率的各种配置文件模型处理记录的配置文件，这些频率被以不同方式视为可调参数。使用四个模型线轮廓处理了三个没有工具功能的自增宽H2O吸收线。检索到的压力线加宽和缩小常数集可以找出所需的频率。对纯水蒸气中的总散射截面进行了估算，约为630Å2。

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