| 120 MW束流功率速调管电子枪设计 |
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| 引用本文： | 周祖圣,董东. 120 MW束流功率速调管电子枪设计[J]. 强激光与粒子束, 2005, 17(7): 1075-1078 |
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| 作者姓名： | 周祖圣 董东 |
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| 作者单位： | 中国科学院,高能物理研究所,北京,100049;中国科学院,高能物理研究所,北京,100049 |
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| 基金项目： | 国家自然科学基金资助课题（10475094）;中国科学院高能物理研究所知识创新项目资助课题 |
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| 摘 要： | 速调管电子枪是速调管重要部件之一，它为速调管高频腔提供直流电子注。对国产50 MW速调管电子枪束流光学系统进行了模拟分析，并对电子枪陶瓷筒进行了重新设计和优化。为了在国产30 MW速调管的基础上设计50 MW速调管，采用进口钡钨电子枪阴极来减小蒸发和抑制打火，将电子注电压提高到320 kV,电流和导流系数分别为346 A和1.91 μp,以满足速调管功率提高的需要。设计出低电场强度（22.1 kV/mm）电子枪新结构，即在不影响电子枪内部束流稳定的前提下，将陶瓷筒设计成靠近阴极端半径较大而远离阴极端半径较小的形状，以避免高功率运行致使陶瓷筒的损坏。
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| 关 键 词： | 速调管 电子枪 加速器 设计 |
| 文章编号： | 1001-4322(2005)07-1075-04 |
| 收稿时间： | 2004-12-03 |
| 修稿时间： | 2004-12-03 |
Design of 120 MW beam power electron gun for high power klystron |
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| ZHOU Zu-sheng,DONG Dong. Design of 120 MW beam power electron gun for high power klystron[J]. High Power Laser and Particle Beams, 2005, 17(7): 1075-1078 |
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| Authors: | ZHOU Zu-sheng DONG Dong |
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| Affiliation: | Institute of High Energy Physics, Chinese Academy of Sciences, P.O.Box 918-8, Beijing 100049, China |
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| Abstract: | An electron gun was designed and the beam optics for a China-made 50 MW klystron was simulated. The electron gun ceramic cylinder was designed and optimized. The China-made cathode was replaced with an imported one to lessen evaporation and arcing. The high voltage (320 kV) of the cathode was increased to meet the klystron output power demand and a low electric field strength (22.1 kV/mm) electron gun was designed to avoid the high power operation which damaged the ceramic cylinder. The klystron output power was increased and life span extended. |
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| Keywords: | Klystron Electron gun Accelerator Design |
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