Electrode layout simulation for JAEA 10A multi-cusp source discharge

doi:10.16568/j.0254-6086.201702017

NUCLEAR FUSION AND PLASMA PHYSICS ›› 2017, Vol. 37 ›› Issue (2): 226-231.DOI: 10.16568/j.0254-6086.201702017

• Nuclear Fusion Engineering and Technology • Previous Articles Next Articles

Electrode layout simulation for JAEA 10A multi-cusp source discharge

LIAO Peng, YIN Mao-wei, WU Yong-cun

(School of National Defense Science and Technology, Southwest University of Science and Technology, Mianyang 621010)

Received:2016-04-15 Revised:2017-04-15 Online:2017-06-15 Published:2017-06-14

JAEA 10A多峰源放电中电极布局模拟

廖鹏，印茂伟，吴永存

(西南科技大学国防学院，绵阳 621010)

作者简介:廖鹏(1992-)，男，四川成都人，硕士研究生，从事计算机应用、信号处理、数据分析等研究。
基金资助:
四川省教育厅重点项目(16zd1121)；四川省科技创新苗子工程培育项目(2016012)；四川省科技创新苗子工程重点项目(2017RZ0058)；绵阳市科技计划项目(16G-01-13)

Abstract

Abstract:

The JAEA 10A multi-cusp source discharge is simulated by the self-developed full 3D PIC/MCC software. The influence of the electrode layout on H^- volume generation efficiency was analyzed. The simulation shows that with a certain discharging power, the crosswise drifting from high energy electrons will weaken relatively when the number of electrodes decreases, then the uniform H? beam will be obtained. However, the lower electrodes lead to a lower generation efficiency of the H^- volume. When the electrodes are close to magnetic filtering region, the crosswise drifting will be strengthen relatively and the H^- volume generation efficiency is quite low. With changing the number of electrodes, the high H^- volume generation efficiency and the good space uniformity couldn’t be obtained together. The electrodes far away from magnetic filtering region are the best choice.

Key words: Negative hydrogen ion source, Particle-in-cell, Monte Carlo method, Magnetic drifting, Volume generation efficiency

摘要：

采用自主研发的全三维PIC/MCC软件对JAEA 10A多峰负氢离子源进行系统仿真，分析了电极布局对H^-体积产生效率的影响。模拟结果显示：放电功率一定的情况下，增加电极数目，高能电子导致的横向漂移相对减弱，进而得到相对均匀的H^-束；但电子的相对利用率越低，导致H^-体积产生效率较低。电极越靠近过滤磁区，高能电子导致的横向漂移相对增强，H^-体积产生效率较低。改变电极数量，H^-体积产生效率和空间均匀性不可兼得，电极远离磁过滤区，可实现双赢。

关键词: 负氢离子源, 粒子模拟, 蒙特卡罗, 磁漂移, 体积产生效率

CLC Number:

TL62+9.1

LIAO Peng, YIN Mao-wei, WU Yong-cun. Electrode layout simulation for JAEA 10A multi-cusp source discharge[J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2017, 37(2): 226-231.

廖鹏，印茂伟*，吴永存. JAEA 10A多峰源放电中电极布局模拟[J]. 核聚变与等离子体物理, 2017, 37(2): 226-231.

References

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Electrode layout simulation for JAEA 10A multi-cusp source discharge

JAEA 10A多峰源放电中电极布局模拟

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