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束流
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  beam
    A COMPUTATIONAL METHOD FOR THE DESIGN ENERGY HIGH INTENSITY BEAM TRANSPORT SYSTEMS
    设计低能强束流输运系统的一种计算方法
短句来源
    THE BEAM ENVELOP ANALYSIS FOR NONPERIODIC SYSTEMS
    非周期系统束流包络分析
短句来源
    STUDY OF THE BEAM TRAMSVERSE MOTION IN THE RFQ STRUCTURE
    RFQ加速器中束流横向运动研究
短句来源
    BEAM TRANSPORT CHARACTERISTICS OF THE 270° DOUBLY ACHROMATIC BENDING MAGNET
    270°消色差偏转磁铁束流传输特性
短句来源
    THE DESIGN AND STUDY OF SPACE CHARGE EFFECT FOR THE BPL 750keV BEAM TRANSPORT SYSTEM
    BPL 750keV束流输运系统的物理设计和空间电荷效应研究
短句来源
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  beam current
    Application of Data Mining in Beam Current Forecast
    应用数据挖掘的束流流强预测
短句来源
    The simulation indicated that microwave pulses of ~1.5GW peak power, ~700ps pulse width,~800ps risetime and output mode TM_(01) were generated with beam voltage ~430kV, beam current ~4.0kA and guide magnetic field 2.0T, and that the peak power conversion efficiency reached 87.5%.
    模拟表明:在束压~430kV、束流~4.0kA,引导磁场2.0T时,得到微波峰值功率~1.5GW,脉宽~700ps、上升前沿~800ps、频率~9.40GHz、输出模式TM_(01); 峰值功率转换效率达到87.2%。
短句来源
    Limited by magnetic field condition, the experiment results under low magnetic field showed that microwave pulses of~360MW, 1.10ns pulse width, ~800ps risetime, ~9.15GHz frequency were produced with ~380kV beam voltage, ~4.5kA beam current and ~0.73T magnetic field, and that the peak power conversion efficiency was ~21%.
    受磁场所限,在低磁场条件下,得到初步实验结果:在束压~380kV、束流~4.5kA、磁场~0.73T下,产生微波功率~360MW,脉宽~1.10ns、前沿~800ps、频率~9.15GHz,峰值功率转换效率~21%。
短句来源
    The dependence of the beam current on the parameters is investigated at the beam energy of 6keV. The neutral beam equivalent current obtained is typically 20μA/cm2, the beam FWHM being about 8-9mm.
    仔细调试了束源与各相关参数间的关系,得到中性等效束流典型值是20μA/cm~2,束分布的半高全宽为8~9mm。
短句来源
    50MW saturated output power and gain of 24dB/m have been obtained at 2.4m in wiggler while 950A beam current was input into wiggler of 0.31T magnetic field.
    当进入摇摆器的束流为950A,摇摆器磁场为0.31T,在摇摆器长度为2.4m的位置,获得了50MW的饱和功率,经变参数实验后输出功率提高到140MW。
短句来源
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  “束流”译为未确定词的双语例句
    SPLIN FUNCTION REPRESENTATION FOR TRANSFORMATION OF PHASE SPACE WITH ARBITRARY CONTOURS
    任意形状束流相空间变换的样条函数表述
短句来源
    STUDY OF INFLUENCES OF THE FIRST BUNCHING CAVITY AND INJECTION CONDITIONS OF RF SW LINACS ON PARTICLE TRANSVERSE MOTIONS
    小型射频驻波加速管首腔腔型及注入条件对束流横向运动影响的研究
短句来源
    Calculation of Space Charge Field for Annulus and Disc Bunch of Charged Particles
    变盘和环状束流空间电荷场的计算
短句来源
    THE EFFECT OF CHEMICAL ENVIRONMENT ON THE KLL AUGER YIELDS OF CH_4 ,CH_3Cl,CHCl_2 F,CF_4 ,BOMBARDED BY 0.8-2.0MEV 4He~+ PARTICLES
    CH_4,CH_3Cl,CHCl_2F,CF_4在0.8—2.0MeV~4He~+束流轰击下碳原子KLL俄歇电子产生率和化学环境的影响
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
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  beam
Microlocal Analysis of an FBP Algorithm for Truncated Spiral Cone Beam Data
      
Derivation and analysis of a new reconstruction formula from cone-beam projections
      
A new method to compute the first derivative of 3-D Radon transform is given for cone-beam data taken from any orbit.
      
Smith [11] and Grangeat [5] even derived cone-beam inversion formulas which are the basic work in fully 3-D image reconstruction algorithm and are used extensively now.
      
Boundary stabilization of nonuniform Timoshenko beam
      
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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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In this paper, a strict and general instability criterion is obtained by analysing the geometric properties of the dispersion relation of electromagnetic waves in plasma with anisotropic velocity distribution. The criterion is applied to the cases of anisotropic temperature and current-carrying plasma. Finally, the relativistic correction of Weibel's formula is obtained.

本文阐述了由分析色散关系几何性质的方法,导出速度分布各向异性的等离子体中的电磁波不稳定性的严格和普适的判据,具体讨论了温度不均匀性和粒子束流对不稳定性的影响。最后导出了Weibel的电磁波增长系数的相对论修正公式。

The double-lobes structure is one of the most important structure forms of extragalactic radio sources., At present, there are some physical models for explaining this double-lobes structure. It is very important subject how to test these models by means of observation. This paper searches for the possibility of such a kind of test theoretically. In this paper, On the basis of beam models, the inverse-compton scatters of high energy electrons in beam with the cosmic background photons and the synchrotron photons...

The double-lobes structure is one of the most important structure forms of extragalactic radio sources., At present, there are some physical models for explaining this double-lobes structure. It is very important subject how to test these models by means of observation. This paper searches for the possibility of such a kind of test theoretically. In this paper, On the basis of beam models, the inverse-compton scatters of high energy electrons in beam with the cosmic background photons and the synchrotron photons of extragalactic radio sources are discussed, and the formulae for calculating these radiations are derived. The calculated results show that radiations are in the x-ray region and with strong directivity—about the beams direction. The intensity of these radiations is above the sensitivity of the x-ray probe. Therefore, We suggest that it is probably an effective method for testing beam models to seek for some x-ray radiations of the complex sources. The parameters of the radio source cygA were referenced in calculating the intensity of these radiations.

双瓣结构是河外射电源的一种很重要的结构形式,说明双瓣结构的物理模型现有好几种,如何从观测上对这些模型进行检验是一个很重要的课题。本文就束流模型探讨了从观测上进行捡验的可能性,在束流模型的基础上,我们讨论了束中高能电子与宇宙背景光子产生的逆康普顿散射和束中高能电子与子源射电光子产生的逆康普顿散射,并导出了计算这些散射的公式。计算结果表明:这些辐射位于X射线波段,有强的方向性——在束流方向附近,强度在X射线探测器的灵敏度之上。因此,我们提出对某些复杂源进行X射线探测可能是检验束流模型的一种有效方法。本文是借用射电源CygA的参数作上述强度估计的。

A formula describing the ion beam envelope in RF choppers with frinviny field isderived. An analytical expression for "Magic φ" and related examples are given.Methods for eliminating the inclination of the chopped beam are discussed.

本文推导了具有边缘场的射频扫描切割器中束流包络线的表述式,在此基础上给出了“魔相”的解析关系式及有关的数例,对消除脉冲束轴倾斜的方法进行了讨论。

 
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