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气体是由光致电离加热的。The gas is heated by photoionization.

本文介绍了基于单片机AT89C52的光离子化检测仪构建。In this paper, the construction of photoionization detect instrument based on AT89C52 chip is presented.

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本文利用R-矩阵方法对部分原子和离子的价壳层、内壳层光电离过程进行了较详细的研究。The photoionization of atoms and ions are studied theoretically by using the R-matrix method in this thesis.

介绍了自行研制的紫外光电离离子阱质谱仪的原理和性能。The principle and performance of a home-made miniature photoionization ion trap mass spectrometer was introduced.

介绍了一种精确测量原子分子真空紫外光吸收和光电离绝对截面的实验方法。A method of accurate measuring the absolute photoabsorption and photoionization cross sections has been introduced.

利用光脉冲的啁啾效应，可以抑制拉比振荡实现高效率的光电离。The using of chirped laser pulse can restrain the Rabi oscillations and realize high efficiency of photoionization.

传统的光电离需要强激发光场且粒子布居存在强烈的拉比振荡。The high laser intensity is needed in traditional photoionization which shows intensive Rabi oscillations of population.

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为了深入了解这一放电现象的物理机制，采用基于光致电离的物理模型研究了这一现象。In order to understand the discharge mechanism deeply, in this paper, a simple model based on photoionization is developed.

介绍了110型光离子化气体分析仪的原理、优点、技术指标。The principle of M0del 110 Photoionization Gas Analyzer is introduced, and its advantages aswell as specifications are described.

研究了激光在厚介质中的传输特性以及激光与原子相互作用的光电离。This paper reports researches on the property of laser traveling in a thick medium and photoionization of laser atom interaction.

开发了基于高灵敏度电离室检测技术的通用型光离子化检测器。On the basis of high-sensitive testing technique of the ionization chamber, a general purpose photoionization detector is developed.

根据微弱光电离信号的检测需要，开发出光新型离子化信号检测仪。According to the measurement demand of weak photoionization signal, a new kind of photoionization signal detection instrument is developed.

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研究了短脉冲强X光泵浦的高增益光电离三体复合X光激光机制，提出了在大中型激光器上开展这种X光激光研究的想法。The high gain photoionization and three body recombination X ray laser scheme pumped by the short pulse intense X ray radiation is studied.

岛屿状的黑色云块散布于星云内部，这些黑色云块是气体与尘埃的集结，避免因光化电离而被吞噬。The island-like clumps of dark clouds scattered across the nebula are nodules of dust and gas that are resisting being eaten away by photoionization.

利用该装置测量了一氧化碳分子的光电离效率曲线及其离子碎片的部分光学振子强度密度。The photoionization efficiency curve and the partial optical oscillator strength densities for different fragments of CO was determined by this work.

在第二部分，我们采用第一部分所选的变分波函数和得到的束缚能进一步计算了类氢杂质体系的光致电离截面。In the second part, using the wave function and binding energy obtained from the first part, the photoionization cross-section of the impurity is calculated.

对光离子化检测器的核心部分进行了分析与设计，着重阐述了系统设计的原则、结构及特性。The key part of photoionization detector is analyzed and designed. The principle, structure and characteristic of the system design is especially demonstrated.

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根据微弱光离子化信号的检测需要，开发出一种光离子化信号数据采集与处理系统。According to the detection demand of the weak photoionization signal, a new kind of data acquisition and processing system of photoionization signal is developed.

将它用于双色光场中的电离，也得到与实验结果定性上一致的结论。When the theory is applied to the photoionization of atoms in two-color laser fields, a qualitative agreement between the theory and the experiments is also obtained.

通过测量光电离质谱和光电离效率谱，鉴别了等离子体放电过程中产生的一系列自由基和中性分子的化学结构。A series of free radicals and the neutral molecules were identified by measuring of photoionization mass spectrometry combined with photoionization efficiency spectra.