space charge effect meaning in English
空间电荷效应
Examples
- Relativistic back wave oscillator ( rbwo ) with a coaxial structure has a big power capacity of system . with large radius electron beam to decrease the space charge effects without usage of high current , hence the rbwo can work well at a lower axial guide magnetic field
同轴返波管具有很大的功率容量,可以采用大半径电子注,在工作电流不变的情况下空间电荷效应大幅度降低,因而可工作在低磁场状态。 - We consider the solid electron beam . the hot dispersion relation including the electron beam space charge effect is obtained in this paper , by series of propagating with using of the boundary condition and combining with the field matching method
考虑实心电子注，分区求出各区慢电磁波的场方程，然后利用边界条件，用严格的场匹配方法，经过一系列的推导得到了考虑空间电荷效应的“热”色散方程。 - 2 . to design an axial magnetic field . the cathode lies in 0 . 4 - 0 . 7 of peak value of the magnetic field and excursion channel in a uniform magnetic field to suppress space charge effects ; to design transition section between the gun and excursion channel in converse computation . 3
选择电子枪阴极处于轴向聚焦磁场峰值的0 . 4 - 0 . 7倍处;漂移通道(互作用区)位于均匀轴向聚焦磁场中,以抑制电子束的空间电荷效应;使用反算法设计电子枪和漂移通道之间的过渡区。 - To make pic ( particl - in - cell ) simulations . to set up models of guns and magnetic field and simulate them in the vacuum and plasma , respectively . we found that plasma held back part of space charge effects and improved trajectory of electrons . but beam would oscillate and became instable as accretion of plasma density . by simulating again and again , we draw a conclusion magic could n ' t work when plasma density was more by far than beam electron density . at last a four - stage depressed collector was simulated
建立电子枪和聚焦系统模拟模型,分别在真空和填充等离子体条件下进行模拟。发现填充等离子体能补偿部分空间电荷效应,改善电子束包络轨迹,提高电子的流通率,但是随着等离子体密度的增大,束电子会出现振荡不稳定性,遗憾的是通过反复多次模拟发现本文所用粒子模拟的代表性软件magic无法用于模拟等离子体密度远高于束电子密度的情况。 - One of effective ways of overcoming space charge effect is to fill plasma in high power wave apparatus , by the neutralization between plasma and space charge , the transfer current is going to be largely enhanced , thereby out - power is going to be largely increased . meantime , due to there are many fluctuating modes in plasma , so it is able to bring a new beam - wave interaction mechanism , by it people can invent some new type high power microwave apparatus
高功率微波装置中的电流密度很大,空间电荷效应强烈,影响了功率的提高,克服空间电荷效应的有效方法是在高功率微波器件中填充等离子体,由于等离子体对空间电荷的中和作用,传输电流会大大提高,从而大幅度提高输出功率,同时由于等离子体中存在多种波动模式,有可能带来新的注波互作用机制,发展新型的高功率微波器件。