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束品质
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  beam quality
     Study on the Optimization of Ion Beam Quality for the Single-Ion Microbeam Facility
     单粒子束装置的束品质优化研究
短句来源
     WT5”BZ]Beam breakup (BBU) instabilities resulted from interaction of beam and cavity will deteriorate beam quality. Transverse impedances reflect the degree of such interaction.
     束腔相互作用导致的束流崩溃不稳定性 (BBU)将严重地恶化束品质 ,而加速腔横向阻抗反映了这种相互作用的强弱。
短句来源
     The factors influencing the beam quality in the device of single-particle microbeam were overall analyzed and a new method for optimizing this quality was put forward in this paper. This optimization method is to reduce the diameter of the collimator exit in the single-particle microbeam facility by a device including the units for the precise measurement of beam emittance and the automatic adjustment of beam focus.
     对影响单粒子微束装置束品质的因素进行了全面分析,并提出了一种优化单粒子微束装置束品质的方 法——用束流发射度精确测量与粒子束聚焦自动调节装置改进单粒子微束装置瞄准器出口束斑。
短句来源
  “束品质”译为未确定词的双语例句
     If the same X-ray spot size is demanded the later can reduce the requirement of the parameters of the electron beam.
     主要表现在两个方面:对相同束品质参数的束流,聚焦后的X光焦斑直径减小,相对实验透镜可以减小0.2mm左右;
短句来源
     This paper introduces a single cell re-entrant cavity and its cathode structure used in the thermionic microwave gun. The essential parameters of the cavity are chosen according to the requirements of produced electron beam. We report design consideration on cavity shape, field distribution, resonant.
     介绍一台用于热阴极微波电子枪的双重入驻波腔及其阴极结构.根据微波枪束品质要求,首先定出腔体基本参数,然后报告了腔形、场分布、谐振频率、耦合度等的设计考虑,并给出腔体测量结果,最后介绍了阴极结构的设计.
短句来源
  相似匹配句对
     A new method for improving beam quality of LINAC
     改进电子直线加速器品质的新方法
短句来源
     Study on the Optimization of Ion Beam Quality for the Single-Ion Microbeam Facility
     单粒子装置的品质优化研究
短句来源
     Qualities in Men & Women
     男女的品质
短句来源
     The Characters of Democracy
     民主的品质
短句来源
     PRODUCTION OF RADIOACTIVE NUCLEAR BEAM
     放射性核的产生
短句来源
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  beam quality
High-average-power and high-energy lasers with good beam quality are fundamental tools for pumping high-peak and high-average-power ultrafast Ti:sapphire laser systems.
      
To study the transverse mode competition, we changed the coiled length of the fiber and measured the output beam quality to compare with calculated values.
      
This planar-folded stable resonator matches the sheet-shaped pump volume with the TEM00 mode and yields highly efficiently laser operation with a good beam quality.
      
The beam quality of the laser system varies from 3.5 diffraction limit to 1.5 diffraction limit.
      
In this contribution, the X-ray laser features like divergence in two dimensions, the beam quality (symmetry), the pointing angle and the integrated intensity giving an estimation of the output energy are investigated over 110 shots.
      
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This paper introduces a single cell re-entrant cavity and its cathode structure used in the thermionic microwave gun. The essential parameters of the cavity are chosen according to the requirements of produced electron beam. We report design consideration on cavity shape, field distribution, resonant. frequency and coupling coefficient. Then we give the cold RF measurement results. The cavity is successfully used in the gun. Results of simulations is presented and is compared with measurements.

介绍一台用于热阴极微波电子枪的双重入驻波腔及其阴极结构.根据微波枪束品质要求,首先定出腔体基本参数,然后报告了腔形、场分布、谐振频率、耦合度等的设计考虑,并给出腔体测量结果,最后介绍了阴极结构的设计.

The 3.3MeV accelerator of Southwest Institute of Fluid Physics is a linear induc-tion accelerator(LIA),whose electron beam parameters are 2kA,3.3MeV and 90ns,built in1991.This accelerator was disigned to drive the SG-I free electron laser.This paper describesbriefly the accelerator and the SG-IFEL facility.The emphases will be placed on the modifica-tion to the pulsed power system of the linac and beam conditioning section of the SG-Iin orderto satisfy the needs for the FEL experiments.The beam current entering...

The 3.3MeV accelerator of Southwest Institute of Fluid Physics is a linear induc-tion accelerator(LIA),whose electron beam parameters are 2kA,3.3MeV and 90ns,built in1991.This accelerator was disigned to drive the SG-I free electron laser.This paper describesbriefly the accelerator and the SG-IFEL facility.The emphases will be placed on the modifica-tion to the pulsed power system of the linac and beam conditioning section of the SG-Iin orderto satisfy the needs for the FEL experiments.The beam current entering the wiggler has been in-creased.Beam quality and system reliability and stability are also improved.Beam parametershave been given at different position. The two important parameters for FEL,beam emittance andenergy spread,are 0.43 cm· rad and 1% respectively.The beam current through the space and ener-gy spread selector into the interaction region is about 950A. The ASE FEL output is about100kW.The amplified FEL output of above 10MW power and gain of 20dB/m have been obtained.

主要介绍曙光一号(SG-1)自出电子激光器中3.3MeV直线感应加速器的系统改进及实验结果,改进后系统的稳定性、同步性和可靠性以及束品质都有很大改善,进入摇摆器的束流比改进之前提高了数十倍,并获得了大于10MW的放大自由电子激光输出功率。

In studying the ion extraction system, BEM and the principle of superposition are used to obtain the boundary condition on the man made boundary for the FEM, and then, FEM is used to solve the potential field. In comparison with the traditional FEM, this method can limit the field to be solved to a minimum degree, increase the computing precision, and decrease the CPU time dramatically. Thus the method proposed in this paper provides a...

In studying the ion extraction system, BEM and the principle of superposition are used to obtain the boundary condition on the man made boundary for the FEM, and then, FEM is used to solve the potential field. In comparison with the traditional FEM, this method can limit the field to be solved to a minimum degree, increase the computing precision, and decrease the CPU time dramatically. Thus the method proposed in this paper provides a useful basis for studying the effect of the various parameters in the system on the ion extraction beam and the optimization of the system. At the same time, in the course of the computing, the visual technology is used to observe the field distribution and the space distribution of the ion beams, which can help to check the intermediate result and observe the simulating result of the ion extraction system.

用边界元法及迭加原理确定有限元法中所需的人为边界上的边界条件,再用有限元法确定位场分布的方法来研究离子源引出系统.该方法与传统方法相比,可使有限元法的计算区域尽可能缩小,从而大大减少计算所需的CPU时间,并能提高计算精度,为研究离子源引出系统中各参数对离子束品质的影响及系统的优化创造了极为有利的条件.同时采用可视化技术,在自洽解过程中可清晰直观地看到离子源引出系统的场分布和引出离子束的空间分布,以便检查中间结果和观察模拟效果

 
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