| 存在漂移管和引导磁场情况下强流电子束的发射度 |
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| 引用本文： | 章冠人.存在漂移管和引导磁场情况下强流电子束的发射度[J].强激光与粒子束,1990,2(1):52-58. |
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| 作者姓名： | 章冠人 |
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| 作者单位： | 西南流体物理研究所 |
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| 摘 要： | 文中考虑了当电子束绕引导磁场发生旋转运动时，强流电子束的发射性质。在均匀分布电荷情况下，导出了发射度的公式，给出了发射度和正则角动量的关系。在轴对称非线性分布电荷情况下．得出了比T．P．Wangler等所给出的更普遍的电子束发射度变化公式。
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| 关 键 词： | 漂移管 引导磁场 强流电子束 发射度 发射度 正则角动量 旋转运动 束流输运 |
EMITTANCE OF HIGH CURRENT BEAMS IN THE PRESENCE OF DRIFT TUBE AND LONGITUDINAL GUIDING MAGNETIC FIELD |
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| Zhang Guanren Southwest Institute of Fluid Physics.EMITTANCE OF HIGH CURRENT BEAMS IN THE PRESENCE OF DRIFT TUBE AND LONGITUDINAL GUIDING MAGNETIC FIELD[J].High Power Laser and Particle Beams,1990,2(1):52-58. |
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| Authors: | Zhang Guanren Southwest Institute of Fluid Physics |
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| Institution: | Zhang Guanren Southwest Institute of Fluid Physics |
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| Abstract: | Emittance formulas of a beam in the guiding magnetic field, where electrons undergo a rotary motion, are deduced. In the case of uniform distribution of space charge, the relation between emittance and the canonical angular momentum of the beam is given. For non -linear distributions a third term must be added to the formula given by T.P. Wangler, which is the contribution of the rotating energy of the beam. |
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| Keywords: | guiding magnetic field emittance canonical angular momentum |
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