| 强流相对论性电子束在真空漂移管中的传输 |
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| 引用本文： | 王效军,康向东,宋院旭,金山,王乃彦,王淦昌.强流相对论性电子束在真空漂移管中的传输[J].核聚变与等离子体物理,1987(1). |
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| 作者姓名： | 王效军 康向东 宋院旭 金山 王乃彦 王淦昌 |
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| 作者单位： | 中国原子能科学研究院 北京
(王效军，康向东，宋院旭，金山，王乃彦)，中国原子能科学研究院 北京(王淦昌) |
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| 摘 要： | 本文给出了40kA,880kV,脉冲宽度为100ns的强流相对论性电子束(IREB)在无外加磁场的真空金属漂移管中传输特性的研究结果。实验证实了束流在传输过程中净电流倍增现象的存在以及L.S.Bogdankevich等人对空间电荷极限电流的理论估计。理论上解释了净电流倍增及其明显滞后、上升时间缩短和脉宽变窄等现象。
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| 关 键 词： | 空间电荷效应 虚阴极 净电流 动量传递碰撞 |
STUDIES OF IREB PROPAGATION IN VACUUM TUBE |
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| WANG Xiaojun KANG Xiangdong SONG Yuanxu JIN Shan WANG Naiyan WANG Ganchang.STUDIES OF IREB PROPAGATION IN VACUUM TUBE[J].Nuclear Fusion and Plasma Physics,1987(1). |
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| Authors: | WANG Xiaojun KANG Xiangdong SONG Yuanxu JIN Shan WANG Naiyan WANG Ganchang |
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| Abstract: | Experimental results of IREB (40kA, 88kV, and 100ns in pulse width, FWHM) propagation in vacuum drift tube without external magnetic field are presented. It is experimentally confirmed that during propagation of IREB the phenomenon oi net current multiplication takes place and theoretical estimate of space charge limiting current by L. S. Bogdankevich et al. is reasonable. The phenomena of net current multiplication and its significant delay, rise-time-shortening and pulse-width-narrowing are explained theoretically. |
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| Keywords: | Space charge effect Virtual cathode Net current Momentum transfer collision |
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