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.
推导了三步光电离的场方程组和原子布居的密度矩阵方程组。
The equation of three step photoionization for describing the field and the density matrix as well as the atomic population was derived.
激光光电离光谱(LPIS)是一种高灵敏度的分析方法。
Laser photo-ionization spectrometry was found to be a highly sensitive method for detecting photon-absorbing molecules.
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.
通过多步谐振光电离技术可以实现对原子(或分子)选择性的电离。
Selectively ionizing atoms (or molecule) can be easily performed by means of a multistep resonance photoionization technique.
本文还指出不同光子能量区域C60的光电离截面振荡有不同的原因。
The present work also implies the photoionization cross-section oscillations of C60 have different origins for different photon energy regions.
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.
软X线稀有气体电离室作为软X线波段绝对探测器，是通过测量光电离子流得出光谱辐射强度。
The technique of soft X-ray ion chamber includes the measurement of the ion current as a function of rare gas pressure in the ion chamber.
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.
通过质谱测量各离子的光电离效率曲线，得到了该分子的垂直电离能及主要碎片离子的出现势。
04ev and appearance potentials of various fragment ions have been determined by measuring their photoionization efficiency curves.
本文利用探针取样法结合同步辐射真空紫外光电离和分子束质谱技术研究了常压下的乙烯扩散火焰。
An ethylene diffusion flame has been investigated at normal pressure using synchrotron vacuum ultraviolet (VUV) photoionization and molecular-beam mass spectrometry.
然而，理论和实验的一些偏离表明集体激发在C60光电离截面中起重要作用，考虑集体激发的改进模型是必要的。
The important role of collective excitation in the photoionization cross-section of C60 is suggested. Improvement of the model by taking into account the collective excitation is indicated.
本文给出了对高功率横流CO_2激光器脉冲预电离过程的理论和实验研究。 表明了预电离过程中光电离的重要作用。
The experimental and theoretical studies on the pulse preionization of high power CW CO2 laser are presented in this paper and the photoionization process ia emphersized.
光电子之间的非弹性碰撞使它们原来获得的能量在整个电离气体中迅速分配。
Inelastic collisions among photoelectrons rapidly distribute their initially gained energy throughout the region of ionized gas.
基于光电子成像光谱技术原理，研究了双光子共振三光子电离方法获得的光电子成像图谱。
Based on the principle of the photoelectron imaging spectrometry, the photoelectron image is investigated by using two-photon resonance and three-photo ionization.
采用离散变量表示（DVR）方案研究了双原子分子在强场下的多光子电离光电子能谱，得到了与实验相同的结果。
The discrete variable representation(DVR) scheme is applied to investigate the photoelectron spectrum(PES) of multiphoton ionization for some diatomic molecules in strong fields.
非电离能损(NIEL)引起的位移损伤是导致空间辐射环境中新型光电器件失效的主要因素。
The displacement damage due to non-ionizing energy loss (NIEL) is the main reason of device-malfunction in spatial radiation environments.
结合紫外光电子能谱实验和量子化学计算方法研究了三氯化碘的电离能。
By combining the photoelectron spectroscopy (PES) with theoretical calculations, the ionization potentials of iodine trichloride were studied.
通过研究不同激光强度下光电子电离几率，发现了电离几率与激光场强度的非线性变化关系。
By studying the photoelectron populations on different laser intensities, we found the nonlinear relationship between laser intensity and photoelectron population.
基于光电效应原理。我们设计了一个新型脉冲激光光电子枪，它可以作为飞行时间质谱的电子碰撞电离的电离源。
Based on photoemission effect. we design a laser photoemission electron gun for electron impact ionization source of time of flight mass spectrometer.
本文用爆裂噪声表征总剂量电离辐射（TID）对光电探测器组件的损伤情况。
The burst noise was used to characterize the degradation behavior of photodetector module radiated by the Total Ionizing Dose(TID) in this paper.
本文用爆裂噪声表征总剂量电离辐射（TID）对光电探测器组件的损伤情况。
The burst noise was used to characterize the degradation behavior of photodetector module radiated by the Total Ionizing Dose(TID) in this paper.
应用推荐