独立调谐热阴极微波电子枪电子反轰效应
Back electron bombardment effect on independently tunable cells thermionic cathode RF gun
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摘要: 为开展自由电子激光太赫兹技术研究，研制出利用两路微波馈入的独立调谐热阴极微波电子枪，建立了热测实验装置，并进行了束流测试和电子反轰效应的热测实验研究。实验结果表明，该微波电子枪出口处束流强度可超过500 mA，电子反轰效应随着首腔电场的相位和幅度调节发生显著变化。Abstract: In order to study the free-electron laser technology, an independently tunable cells thermionic-cathode RF gun with two microwave feed-in ports is manufactured in CAEP. An experiment facility of power test is built, and experiment research on beam current and power of back electron bombardment is performed. Research result shows that a beam intensity over 500 mA can be measured at exit of the RF gun, and the back electron bombardment can be changed with adjustment of phase and amplitude of the electric field in the first cavity.
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Key words:
- independently tunable cells /
- thermionic cathode /
- RF gun /
- back bombardment effect
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