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- scanning beam current 扫描电子束电流
- The locally uniform temperature field brazing required could be achieved by using large beam diameter, large scanning radius and small beam current. 结果表明:大束斑直径、大扫描半径和小束流的扫描方式可以获得钎焊所需的局部均匀的温度场。
- A ns pulse beam device is installed at pulse beam current piping. 在脉冲束流管道上安装有强流毫微秒脉冲化聚束装置。
- Sound Gate: The gate used in an optical sound head, instead of a sound drum, to keep the film sound track precisely aligned on the scanning beam slit during sound reproduction. 声门:光学声音头上用的片门,代替声鼓,使得胶片的声轨在声音重现过程中正好和扫描狭缝光束精确地排列成一直线。
- In display technique, excessive luminosity of the spot due to excessive beam current. 在显示技术中,指由于电子束电流太大而产生的光点太亮的现象。参阅beam,spot。
- This study is useful to pentagonal prism manufacture process and adjustment,and helpful to correct wave-front error of scanning beam turning during wave-front measurement of large aperture telescope. 指出此研究结果有利于五角棱镜的加工和棱镜调整,还有利于大口径望远系统波前检测过程中扫描光束转向的波前误差的修正。
- The result of calculation indicates that if ripple factorof beam current is kept within 9%,the reproducibility can be controlled 1 %. 结果表明只要束流纹波在9%25以内,剂量重复性可控制在1%25以下。
- The design of the gun is commonly defined by perveance, beam current, waist radius, waist position and cathode current density. 它的设计主要有导流系数、流、腰半径、腰位置以及阴极电流密度。
- These collective instabilities can be severe in the LHC because of the large beam current needed to provide high luminosity. 这种集体不稳定性在LHC中会变得更严重,因为为了达到更高的亮度,我们需要更大的粒子束。
- In order to minimize evaporation and loss of Mg, the considerable increasing of accelerating voltage, beam current and welding speed is preferred. 为减小镁元素烧损,在电子束焊接时可适当增加焊接的加速电压与束流,加快焊接速度。
- Sound Drum: A flat roller in the sound head designed to keep the film precisely positioned at the point where the scanning beam slit scans the sound track. 音鼓:声头上的一平滚筒,设计用来让胶片精确放置,使得扫描夹缝光束正好扫描到胶片上的声轨上。
- As the gas pressure in discharge chamber varies within the operation range the percentages of metal and halogen ions in total beam current vary with it. 那就是,放电室内的气压在工作范围内变化时,离子束中金属离子和卤素离子的含量也都随之改变。
- Frequency Referenced Scanning Beam 频率基准扫描波束
- The structure of the MIGmust be carefully selected, as the tiny change on it will affect beam performance highly, and beam current will fluctuate punily. 同时,还发现由于阳极结构的变化导致阴极电场分布的变化,使电子注的注电流在各因子变化过程中出现了微小的扰动。
- time reference scanning beam (TRSB) 时基扫描波束
- The electron cloud effect limits the performance of several accelerators with high beam current, such as SLAC and KEK B factories, the CERN SPS and the CERN PS. 电子云效应限制了几台加速器的高束流密度运行;例如SLAC和KEK的B工厂;CERN的SPS与PS.
- Microwave Scanning Beam Landing System 微波扫描波束着陆系统
- In this dissertation, the effects of input power, electron beam voltage, electron beam current and focusing magnetic field on output power have been studied. 本论文还分析了输入功率、电子注直流电压,电子注直流电流和聚焦磁场对输出功率的影响。
- camera tube with low velocity scanning beam 低速电子扫描摄像管