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Transition probabilities, oscillator strengths, and lifetimes of configurations, multiplets, and individual lines for many-electron atoms and ions are studied employing the WBEPM theory. Transition probabilities and oscillator strengths for alkali metal atoms, alkaline-earth elements Be, Mg, Be , and Mg , carbon atoms and its ions , nitrogen atom and its ions , oxygen atoms and its ions , fluorine atom, Ne , and IB elements are calculated. Lifetimes of C, N, and O atoms are evaluated as well.

运用WBEPM理论对多电子原子和离子的组态、谱项和能级间的跃迁几率、振子强度以及辐射寿命进行系统地研究,计算了碱金属原子、碱土金属的Be、Mg原子及其一价离子、C原子及其离子、N原子及其离子、O原子及其离子、F原子、Ne离子和重金属IB族原子的跃迁几率和振子强度以及C、N、O原子的辐射寿命。

The ion implanter has an ion extractor and a mass analyzer for deflecting ions in a predetermined direction regardless of the charged state of the ions. A polarity converter changes the flux direction of a magnetic field in the mass analyzer according to the charged state of the ions.

离子注入机具有:离子分离器;质量分析器,用于按照预定方向偏转由离子分离器导入的离子,而无论离子的带电状态如何;以及极性转换器,用于按照离子的带电状态来改变质量分析器中磁场的通量方向。

The results show that,(1) the ion acceleration and energization mainly occur in the middle of dipolarization at distance of -12 R to -8 R,(2) the ion acceleration and energization along the direction perpendicular to magnetic field are faster than along parallel direction,(3) variations of speed and energy for lighter ion are faster than that of heavier ion,(4) the higher the initial energyis, the faster the ion acceleration is, and the more energy is obtained by the ions.

主要结果为:(1)离子的加速及能量变化主要发生在磁场偶极化过程的中期,对应的地心距离位於-12R到-8R之间;(2)垂直於磁场方向上离子加速及能量变化较快,平行方向上较慢;(3)轻离子较重离子加速及能量变化快,磁场偶极化终结,3种离子的能量均可增加200倍左右;(4)初始能量较高时,离子加速及能量变化较快,离子最终获得的能量较大。

The results show that,(1) the ion acceleration and energization mainly occur in the middle of dipolarization at distance of -12 RE to -8 RE,(2) the ion acceleration and energization along the direction perpendicular to magnetic field are faster than along parallel directi on,(3) variations of speed and energy for lighter ion are faster than that o f heavier ion,(4) the higher the initial energyis,the faster the ion accelerati on is, and the more energy is obtained by the ions.

主要结果为:(1)离子的加速及能量变化主要发生在磁场偶极化过程的中期,对应的地心距离位于-12RE到-8RE之间;(2)垂直于磁场方向上离子加速及能量变化较快,平行方向上较慢;(3)轻离子较重离子加速及能量变化快,磁场偶极化终结,3种离子的能量均可增加200倍左右;(4)初始能量较高时,离子加速及能量变化较快,离子最终获得的能量较大。

The system is composed of polysilicic ions and polyaluminous ion s with the participation of polyaluminous ion s, the Si-O specific line which is inherent in the examination of infrared spectrum is gradually reducing and becoming a broad belt, the non-ion bond reactions between polysilicic ion and polyaluminous ion is proved by observasion with electron microscopy.

稳定胶体态的硫硅聚铝和氯硅聚铝是性能优良的絮凝剂,体系中含有聚硅离子和聚铝离子。红外光谱测试固有的Si—O特征峰随聚铝离子的引入逐渐衰减,变成较宽的带,聚硅离子与聚铝离子间存在着一种非离子性的健合作用,电镜摄像观察证实了这一结论

Room temperature ionic liquids are the hot points of the current research fields of chemistry, chemical engineering and functional materials. Since 1998, the preparation and application of ionic liquids as environmentally benign reaction media and functional material have been carried out in Lanzhou Institute of Chemical Physics. The detailed research work, including the design and preparation of novel ionic liquids, ionic liquid as catalyst and reaction medium in sulfuric acid free Beckmann rearrangement,...

离子液体介质与材料研究是当前化学化工、功能材料的热点领域之一。1998年底以来,我们以发展离子液体清洁反应介质和软功能材料为研究内容,以实现新离子液体的设计与合成,离子液体中无硫酸Beckmann重排反应、非光气异氰酸酯合成、二氧化碳吸收与活化、反应-升华分离一体化,微孔硅胶限制纳米尺度离子液体材料的设计合成和应用及离子液体-电化学技术集成等为目标开展了一系列研究工作并取得良好进展。

In order to increase the peak depth of nitrogen atoms during the nitrogen plasma ion implantation of Ti-6Al-4V alloy, the rare earth metal yttrium was used to increase the implantation and diffusion depth of nitrogen atoms. In the experiment, the yttrium ions were implanted under the voltage of 20 kV firstly, and then the nitrogen ions were implanted under 30 kV.

为了提高氮离子体浸没离子注入Ti-6Al-4V合金时氮原子的峰值深度,利用钇来增加氮在基体中的注入深度和扩散深度,先用20 kV的电压进行钇离子体浸没离子注入处理,然后用30 kV的电压进行氮离子体浸没离子注入处理。

The results show that, the Fick's second law based on corrosion environment should be presented; the linear isotherm of chloride binding is appropriate in concrete structures; the amounts of bound chloride in tide range area and air environment is 0.11~0.37 times of free chloride; the diffusion coefficient is 1/3 to the concrete without RAM and the effect is the best when the RAM ratio is about 15%.

研究表明:Fick第二定律仍需进一步改善,有必要根据不同侵蚀环境建立不同的侵蚀模型;用线性结合理论描述实际混凝土结构中的氯离子结合基本适用;潮差区及以空气中氯离子侵蚀为主的混凝土结构,结合氯离子占自由氯离子的相对值大致在0.11~0.37之间;掺加海水耐蚀剂混凝土的氯离子扩散系数大致可降为原来的1/3;海水耐蚀剂含量在15%左右时其提高混凝土抗氯离子渗透性能的效果最明显。

The results show that, the Ficks second law based on corrosion environment should be presented; the linear isotherm of chloride binding is appropriate in concrete structures; the amounts of bound chloride in tide range area and air environment is 0.11~0.37 times of free chloride; the diffusion coefficient is 1/3 to the concrete without RAM and the effect is the best when the RAM ratio is about 15%.

研究表明:Fick第二定律仍需进一步改善,有必要根据不同侵蚀环境建立不同的侵蚀模型;用线性结合理论描述实际混凝土结构中的氯离子结合基本适用;潮差区及以空气中氯离子侵蚀为主的混凝土结构,结合氯离子占自由氯离子的相对值大致在0.11~0.37之间;掺加海水耐蚀剂混凝土的氯离子扩散系数大致可降为原来的1/3;海水耐蚀剂含量在15%左右时其提高混凝土抗氯离子渗透性能的效果最明显。

Based on both the strong-weak model and the strong-strong model, the instability caused by ions in equilibrium is simulated, some useful results are obtained. The results include the relation between instability growth rate and neutralization factor, the relation between instability threshold and neutralization factor, and the incoherent tune shift, the tune spread, the ion cloud distribution, the ion loss mechanism, as well as the ion accumulation limitation in the storage ring. With this understanding, we have carried out theoretical and experimental study for some ion clearing methods and their effects for the HLS ring. The minimum static clearing voltage is determined through calculating beam electric field and measuring ion current.

在上述基础上,我们对各种离子清洗的方法及清洗效果进行了理论和实验的研究:通过计算束流电场和测量清洗电极上的离子流来确定直流清洗电极所需的最小清洗电压;通过测量离子引起的频移来计算储存环的中性化系数;用模拟计算和实验测量证实了高频清洗能有效地克服储存环上离子俘获不稳定性;对由高频剔除系统形成的储存环部分束团填充模式下的离子俘获问题进行了初步研究,证实采用束团部分填充模式能在一定范围内克服离子俘获效应;并对各种离子清洗方法进行了比较。

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