| EAST-NBI磁偏转系统束传输特性模拟研究 |
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| 引用本文： | 赵祥学,梁立振,胡纯栋,韦江龙,王艳.EAST-NBI磁偏转系统束传输特性模拟研究[J].强激光与粒子束,2015,27(4):046002. |
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| 作者姓名： | 赵祥学 梁立振 胡纯栋 韦江龙 王艳 |
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| 作者单位： | 1.中国科学院 等离子体物理研究所, 合肥 230031 ; |
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| 摘 要： | 根据EAST-NBI偏转系统工作原理,分析了束流在偏转系统传输的基本过程和特点。利用直接蒙特卡罗方法,发展了中性束注入器束偏转区域束流传输模拟程序。结果显示:EAST-NBI磁偏转系统可很好地剥离束流中的剩余离子;束偏转区域束流再电离损失约为2.43%;束流180°偏转所带来线聚焦过程使偏转磁体磁极护板局部面临较高的热流密度。
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| 关 键 词： | 中性束注入 磁偏转系统 蒙特卡罗方法 |
| 收稿时间： | 2014-05-16 |
Beam transmission characteristics simulation of EAST-NBI magnetic deflection system |
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| Affiliation: | 1.Institute of Plasma Physics,China Academy of Sciences,Hefei 230031,China;2.School of Nuclear Science and Technology,University of Science and Technology of China,Hefei 230026,China |
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| Abstract: | According to the working principle of EAST-NBI deflection system, the basic transmission process of the beam and characteristics of the deflection system were analyzed. Using Monte Carlo method, computer programs were developed to simulate the transmission of the neutral beam in the deflecting region. The results show EAST-NBI magnetic deflection system can strip the residual ions out of the beam passage; The loss of reionization in the beam deflection region is about 2.43%; Because of line focusing process caused by the 180 degrees deflection of the beam, the pole shields of the deflection magnet have high heat flux density. |
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