论文标题
电子回旋共振源中最小B效应的数值研究
Numerical investigations of the minimum-B effect in Electron Cyclotron Resonance Ion Source
论文作者
论文摘要
三维粒子中的模型NAM-ECRI用于研究降低-PM电子回旋子共振离子源如何对源磁构型的变化做出反应。重音是根据磁陷阱中心（最小B值的磁场的变化）做出的。据计算，该场的最佳归一化值为〜0.8，接近实验观测值。讨论了最佳存在的原因。据观察，由于血浆中能量电子的限制增强，电子能量随着最小B值的增加而增加。观察到径向丢失的电子的能量光谱的凸起，并解释为由于电子的非绝热损失。
The three-dimensional particle-in-cell model NAM-ECRIS is used for investigation of how the DECRIS-PM Electron Cyclotron Resonance Ion Source is reacting to changes in the source magnetic configuration. The accent is made on changes in the magnetic field at the magnetic trap center, the minimum-B value. It is calculated that the optimal normalized value of the field is ~0.8, close to the experimental observations. The reasons for existence of the optimum are discussed. It is observed that the electron energies are increasing with the increased minimum-B values due to enhanced confinement of the energetic electrons in the plasma. Bumps in energy spectra of the radially lost electrons are observed and explained to be due to nonadiabatic losses of electrons.
