查询词典 autoionization

Detailed studies have been carried out to demonstrate the effects of the autoionization resonances on the radiative opacity and transmission.

研究了电离阈以上的自电离共振对光谱分辨的辐射不透明度和透射谱的影响。

This shows that autoionization resonance widths of the K-shell excited states have large effects and should be considered to interpret the spectrally resolved transmission.

在自电离共振展宽效应比较明显时，应该考虑这一物理效应。

In the third chapter, the photoabsorption of NO, CO, acetonitrile, acrylonitrile, benzene and toluene of benzene series have been measured by using a homemade experimental apparatus of cylindrical multi-stage ion chamber with high flux SR source. The ionization energies of some electron states are given. Their superexcited states, autoionization Rydberg states have been analyzed. By the analysis and comparison, our results are accurate and credibility.

在第三章中，利用高通量的同步辐射光源和自制的多级光电离吸收池装置，测量了NO、CO、乙腈、丙烯腈、苯系物中的苯和甲苯的光吸收谱，给出了部分电子态的电离能，分析了其中的自电离Rydberg态结构和一些振动能级，对部分结构做了精确指认，经过分析和比较，我们所得的结果比较精确和可靠。

It is also shown that for the system with more than two continua such as RbI, the occurrence of autoionization phenomenon has some relation with potential crossing, and the strength of the cross-coupling is influenced by the external field, too.

另外，在研究具有两个连续态的RbI体系时，自电离现象的发生也与势能面的交叉密切相关，并受外场强度的影响。

Isolated-core excitation and autoionization detection method are combined to measure even-parity high-lying excited states of Sm atom.

采用孤立实激发与自电离探测技术相结合的方法对Sm原子偶宇称高激发态进行了系统研究。

In chapter 2 and 3, experimentally, using the Angular-Resolved high-resolution fast Electron Energy Loss Spectrometer , at the condition of 2. 5 keV incident energy and 50-60 meV energy resolution, we measured the Optical Oscillator Strength Density Spectra for the excitations of 4p, 4s or 3d electron. The oscillator strengths for excitations of the valent shell 4p electron were obtained, and comparisons were done between presently experimental and previously experimental and theoretical results. The experimental results of different groups agree with each other approximately, but the semi-experientially theoretical results do not match with the experimental results. The delayed maximum in the photoabsorption spectra was discussed. It should arise from the transition of 4p→∈d. For the excitation of the inner-valent 4s electron, the discrepancies for the resonant structures in previous electron-impact results and photoionization results were clarified in present work, which confirms again that the fast electron impact method is suitable to measure the optical oscillator strengths. The autoionization Rydberg series 4s〓ns (n=5, 6, 7) and 4s〓nd (n=4, 5, 6, 7) were identified without ambiguity by the measurement at 0°, 2° and 4°scattering angles. The energy levels and natural widths of the excitations of Kr3d and Ar2p inner shell, including optically allowed and forbidden transitions, were determined. The widths of these inner shell excitations are nearly the same, which was interpreted by the Resonant Auger effect .

在第二章和第三章，实验上，使用角分辨的高能量分辨快电子能量损失谱仪，在2.5keV电子入射能量和50-60meV能量分辨下，测量了Kr原子由价壳层4p到内价壳层4s，再到内壳层3d电子激发的光学振子强度密度谱；得到了价壳层4p电子激发束缚态的光学振子强度，与前人实验和半经验理论结果作了细致的比较，说明几家实验是比较符合的，但半经验的理论计算存在问题；分析了光吸收谱中的延迟极大现象，说明在第一电离阈值以上几个eV范围内的极大值源于4p→εd跃迁产生的延迟极大；对于内价壳层4s激发的自电离区，澄清了前人实验中电子碰撞方法和光学方法在共振结构上存在差异的问题，再一次肯定了快电子碰撞方法是获得绝对光学振子强度的一种好方法；通过在非0°散射角的测量（如2°和4°），清楚地标识了4s电子激发的光学禁戒跃迁自电离里德堡系列4s〓ns（n=5，6，7）和4s〓nd（n=4，5，6，7）；通过在0°和4°散射角的测量，观测并标识了几个新的内壳层光学禁戒跃迁能级，得到了Kr原子3d和Ar原子2p内壳层激发态（包括光学允许和禁戒跃迁形成的）的能级位置和自然宽度，用共振俄歇效应解释了这些内壳层激发态（不管是光学允许还是禁戒跃迁产生的）的自然宽度彼此比较接近的原因。

The autoionization energies and widths for some autoionization states are determined.

对铝原子及其离子，获得了大量的光电离辐射参数。

In this paper we address the question of the transition between autoionization that prevails in small molecules, and delayed ionization occurring in larger molecules or clusters. This transition is illustrated by autoionization of Na2 Rydberg states on one hand, delayed ionization in fullerene C60, and delayed detachment in small cluster anions on the other hand.

本文通过Na2的里德堡态的自电离，富勒烯C60的延迟电离，阴离子小团簇的延迟解离研究了在小分子中起主导作用的自电离和在大分子以及团簇中出现的延迟电离之间的转变过程。

A large difference exists between the convergence of the results with and without taking account of autoionization resonance broadening when the autoionization resonance broadening is the major broadening mechanism.

研究中考虑与不考虑自电离共振展宽，对x-射线透射谱计算的收敛速度大不一样，考虑了此效应，收敛速度快很多，而且得到的透射谱与实验测量谱符合更好。

For an aluminum plasma at a temperature of 40eV and a density of 0.0135 g/cm〓, the widths of the K-shell 1s-2p excited autoionization states of aluminum ions are larger than the widths caused by the Doppler and Stark broadening. Therefore, the autoionization resonance broadening is one of the main broadening mechanisms of spectral lines.

研究表明，对温度为40 eV，密度为0.0135g/cm〓的铝等离子体，1s-2p内壳层激发态的自电离共振宽度往往超过由Doppler展宽效应引起的宽度，因而前者是主要的谱线展宽机制之一。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。