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- ion energy spread 离子能量发散
- CSR has little influence on the emittance, the energy spread and the envelope. 相干同步辐射引起的发射度增长及能散较小,且不影响束流包络。
- Discharge characteristics of Ar plasma in the MEP were measured with Langmuir probe and ion energy analyzer. 采用朗谬探针和离子能量分析器,测量了MEP中Ar等离子体的放电特性。
- The increasements of the emittance and energy spread caused by space charge and coherent synchrotron radiation (CSR) in the merger part are studied. 研究了空间电荷效应以及相干同步辐射对束流发射度、能散及包络的影响。
- When charged particle beams traverse in an accelerating structure, the excited wake fields may dilute the beam energy spread and emittance. 带电粒子束在穿过加速结构时激起的尾场,会导致束流能散和发射度的增大。
- Pure goldleaf is the minimum form of molecule upon abstraction.Given adequate massage, it can be 100% absorbed by the skin, and produce negative ion energy. 金箔:有安神、镇静、延缓老化的功效,适合高压上班族,具有增加肌肤对水分的吸收能力与防护肌肤水分流失的双重功效。
- Process review shows that the substrate material is the key factor for the carbon films deposition, and the parameters of ion energy, pressure and methane ratio are impotent also. 工艺研究结果表明,衬底材料对制备该新型纳米碳膜具有关键作用,离子能量、工作压力及气氛等工艺因素也具有重要作用。
- Monochromator in TEM can effectively diminish energy spread of the incident electron beam, consequently reducing the limitation on TEM’s performances by chromatic aberration. 在场发射枪透射电子显微镜上增加单色器(能量过滤器)可有效降低电子束的能量色散,减小色差对电子显微镜性能的影响。
- The driving current density plays an impelling effect on sheath ion energy flux.With the increasing driving current density, the ion energy flux increases. 驱动电流密度对鞘内离子能量通量起激励作用:随驱动电流密度增加,离子能量通量单调增加。
- The behavior of beams with deferential initial energy spread in the accelerating section and focusing system has been described using the beam envelope model and its code. 为了分析不同能散度的入射束流在直线感应加速器加速段和聚焦段的行为,利用束包络计算模型进行了计算考察,给出束流不同能散度对聚焦焦斑造成模糊范围的大小。
- Decay curves of metastable fragment ions is also obtained by means of ion energy loss scans spectroscopy. 利用离子能量损失扫描谱,得到亚稳态碎片离子的衰变曲线。
- Based on a theoretical analysis of the energy spread of RFQ shaper section, simulation by using computer code RFQDYN shows that an energy spread of 0.4% can be obtained by optimizing RFQ parameters. 利用变参量RFQ动力学模拟程序RFQDYN进行模拟优化,得到输出束流能散为0.;4%25的RFQ加速器物理设计。
- By means of so-called PCVD method,which has both the advantages of the PVD and CVD the bombarding ion energy and the ion current flow density on the substrate can be independently adjusted. 这种兼有PVD和CVD各自优点的PCVD方法,能独立地分别调节轰击基片的离子能量和离子流密度。
- This energy spreading occurred because the electrons were trapped by the wakefield wave at various locations and at different times. 这个能量的分布是因为电子在不同的时间跟位置被尾迹场波抓住。
- Keywords fluoride glass rare earth ion energy upconversion; 氟化物玻璃;稀土离子;能量上转换;
- It is possible to transmute one form of energy into another. 把某种形态的能量改变成另一形态的能量是可能的。
- Young people usually have more energy than the old. 青年人通常比老年人精力充沛。
- The industry felt the effects of the energy crisis. 该工业受到能源危机的影响。
- I rallied all my energy for further effort. 我振作精神以做再次的努力。
- Kinetic energy is the energy arising from motion. 动能就是由于运动而产生的能量。