| 等离子喷涂硼化镧阴极电子枪 |
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| 引用本文： | 王厚稳 朱以漳. 等离子喷涂硼化镧阴极电子枪[J]. 原子能科学技术, 1989, 23(4): 52-56 |
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| 作者姓名： | 王厚稳 朱以漳 |
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| 作者单位： | 南京大学(王厚稳，朱以漳)，南京大学(陈树群) |
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| 摘 要： | 一、引言现代大型医用电子直线加速器电子枪的设计有如下特点: 1.要求电子枪束流在大范围内连续可调。对于一个二极型电子枪系统,枪必须工作在温度限制区域内,故阴极发射的稳定性十分重要。2.行波电子直线加速器通常采用可拆性结构,这就要求阴极必须有较好的抗中毒特性。
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| 关 键 词： | 电子枪 等离子喷涂 硼化镧 阴极 |
AN ELECTRON GUN WITH A PLASMA SPRAY LaB_6 CATHODE |
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| WANG HOUWEN,ZHU YIZHANG,CHEN SHUQUN Nanjing University. AN ELECTRON GUN WITH A PLASMA SPRAY LaB_6 CATHODE[J]. Atomic Energy Science and Technology, 1989, 23(4): 52-56 |
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| Authors: | WANG HOUWEN ZHU YIZHANG CHEN SHUQUN Nanjing University |
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| Affiliation: | WANG HOUWEN;ZHU YIZHANG;CHEN SHUQUN Nanjing University |
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| Abstract: | The structure and characteristic of an electron gun with a plasma spray LaB_6cathode for medical electron linear accelerator are described in the paper. Theemission, poison and stability performances of scandium salt Ba-W, plasma sprayLaB_6, polycrystalline LaB_6 and pure Ta cathodes are measured. The results showthat the plasma spray LaB_6 cathode is more suitable for the medical electron linearaccelerator with detachable vacuum system than others. |
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| Keywords: | Medical electron linear accelerator Electron gun Plasma spray LaB_6 cathode Anti-poison performance |
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