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   束流 在 无线电电子学 分类中 的翻译结果: 查询用时:0.02秒
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束流
相关语句
  beam current
    Grazing angle RBS-channeling analysis of beam current effects in BF_2~+ implanted Si
    硅中BF_2~+注入束流效应的掠角背散射沟道分析
短句来源
    Calculation of Temperature Raise in Forming SOI Structure by Means of High Beam Current Ion Implantation
    强束流离子注入形成SOI结构时的温升效应的计算
短句来源
    DESIGN OF TWO─LENS FOCUSED ION BEAM SYSTEM WITH VARIABLE BEAM CURRENT
    可变束流二级透镜聚焦离子束系统的设计
短句来源
    Because, in our experiment, the beam current and the diode voltage are not their optimized values by the results of the particle simulation, the measured output microwave power is only 230MW.
    由于实验中束流电压和电流都偏小,输入的电子束功率水平低,特别束流大小比在粒子模拟中得到的优化电流低得较多,所以实验测试到的微波功率只有 230MW。
短句来源
    An ion beam of (31)p~+ withan iondose of 3×10~(15) ions/cm~2,kinetic energy>120 keV,and a beam current from 35 to50 μA.
    将剂量为 3 ×10~(15)离子/cm~2的~(31)P~+,用高于 120kV的能量,35-50μA/cm~2的束流密度,注入到涂在玻璃衬底上的 AZ1350光刻胶层中.
短句来源
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  “束流”译为未确定词的双语例句
    A STUDY OF HIGH CURRENT PULSED Mo IONS IMPLANTATION IN His STEEL
    强束流脉冲钼离子注入H13钢的研究
短句来源
    Design of the e-beam transport system for the SFEL
    SFEL束流偏转传输系统的设计
短句来源
    Design and application of Gaussion filter in BPM of super-short pulse
    高斯响应滤波器的设计及其在超短脉冲束流位置测量中的应用
短句来源
    Mass Spectra of Au-Si Liquid Metal Ion Source By E×B Mass Filter
    用E×B质量分析器分析Au-Si液态金属离子源(LMIS)的束流成分
短句来源
    Through theoretic analysis and experimental exploring,after optimizing growth temperature and Te/Cd flux,CdTe thin film with better quality has been made. Through circle annealing process,the quality of CdTe/GaAs(111)B complex substrate is improved with decreasing of FWHM of DCRC of CdTe/GaAs(111)B thin film.
    通过理论分析和实验探索,优化了生长温度和Te/Cd束流比等重要生长参数,获得了质量较好的CdTe薄膜,再通过循环热处理,使CdTe/GaAs(111)B复合衬底的质量得到进一步的提高,X-射线回摆曲线半峰宽(FWHM)有明显的降低。
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  beam current
The influence of proton irradiation (energy, 18 MeV; beam current, 300 nA) with doses of 5 × 1014, 1015, and 5 × 1015 cm-2 on samples of SiO2-BaO-based glass coatings is investigated.
      
It was shown that significant steady-state currents (1 to 10% of the electron beam current) were observed only if the thickness of blocking (unirradiated) layer did not exceed 5 μm.
      
It was found that depending on deposition conditions, the resistivity ρ of applied lines varied from 4 × 10-2 to 103 Ω cm, decreasing rapidly with an increase in the electron beam current.
      
The Simulation of a Beam-Plasma Discharge with the Beam Current Exceeding the Limiting Vacuum Current
      
Results are given of simulation of the space-time dynamics of a beam-plasma discharge with the beam current exceeding the limiting vacuum current.
      
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After bombarding the Ni(001) surface by an Ar ion beam with primary energy of 500 eV and beam current of 5 μA in the presence of residual nitrogen under a total pressure of 5 × 10-5 torr, we have found a P(2 × 2) structure formed by the adsorption of nitrogen on Ni(001) surface by means of LBED. This is much similar to the structure caused by the adsorption of oxygen or the segregation of carbon with a surface concentration of one quarter monolayer on the same crystal surface. A primary discussion on the nature...

After bombarding the Ni(001) surface by an Ar ion beam with primary energy of 500 eV and beam current of 5 μA in the presence of residual nitrogen under a total pressure of 5 × 10-5 torr, we have found a P(2 × 2) structure formed by the adsorption of nitrogen on Ni(001) surface by means of LBED. This is much similar to the structure caused by the adsorption of oxygen or the segregation of carbon with a surface concentration of one quarter monolayer on the same crystal surface. A primary discussion on the nature of nickel-nitrogen bond has been made.

在总压为5X10~(-5)托并含有少量氮的氩气中,用能量为500伏、束流为5微安的氩离子轰击镍(001)表面,获得了一个吸附着氮的镍表面。低能电子衍射观察表明,吸附在镍(001)表面上的氮形成了类似于氧和碳吸附(偏析)在镍(001)表面上所产生的 P(2×2)结构。对氮吸附在镍面上的键的本质进行了初步的探讨。

The potential distributions of the multi-line and multi-leaf electrode systems to construct a quasi-hyperbolic electrostatic field are calculated and a general equation is obtained. In conventional particle accelerators the convergent lense consisting the quadrupole of fuor hyperbolic rods is used for focusing the output beam.Now a substitution of 20-line structure is proposed.The electrodes are easy to construct,the space occupied by the electrodes is rather small,and the electric breakdown is hard to occur.Besides,three...

The potential distributions of the multi-line and multi-leaf electrode systems to construct a quasi-hyperbolic electrostatic field are calculated and a general equation is obtained. In conventional particle accelerators the convergent lense consisting the quadrupole of fuor hyperbolic rods is used for focusing the output beam.Now a substitution of 20-line structure is proposed.The electrodes are easy to construct,the space occupied by the electrodes is rather small,and the electric breakdown is hard to occur.Besides,three new electrode systems com- bining the quadrupole field and octopole field are proposed to use in the electron-beam curing apparatus to improve the homogeneity of the incident beam intensity inctensity on the sur- face of the specimen.

对多线和多叶型电极系统产生的电位分布进行数学运算,给出了满足各多极场误差项为零时的几何参数和电参数的一般解,提出了组合四极场和八极场的三种电极结构。采用较多的线和叶使得在场的完整性、扩大可工作区域、提高“电压利用率”和修正象差等方面较十二线、八叶、十二叶等结构有所改进。可用在某些类型的加速器的离子输出口作为一种新型结构的电四极场聚焦系统。其特点是电极加工简单,占用空间小和不易产生电击穿现象。也可在电子束固化装置中作为线聚焦静电四极透镜,以提高试样表面束流强度的不均匀性。

In this paper, the design of an injection system of a electron beam is presented.It consists of a Pierce gun and a magnetic short lens, and has been used in a microwavelinear accelerator for radiation Therapy. A beam-centering system and a beam-deviatingsystem have been introduced in the injection system. A technology of a bihelix cathodehas been presented also. A few "table-tests" have been demonstrated that the methodspresented are valid for engineering calculations.

文中给出的放射医疗用的微波电子直线加速器的注入系统由一级皮尔斯电子枪与一级短磁透镜所组成。在系统中还加入了束流对中装置和束流偏转装置。解决了双螺旋阴极的制造问题。作了若干桌上实验,其性能达到了工程使用的要求。

 
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