Single-mode selection and axial mode control in a free-electron maser oscillator using a prebunched electron beam

被引：7

作者：

Cohen, M ^{[1
]}

Eichenbaum, A ^{[1
]}

Kleinman, H ^{[1
]}

Chairman, D ^{[1
]}

Gover, A ^{[1
]}

机构：

[1] NUCL RES CTR NEGEV,DEPT PHYS,IL-84190 BEER SHEVA,ISRAEL

来源：

PHYSICAL REVIEW E | 1996年 / 54卷 / 04期

关键词：

D O I：

10.1103/PhysRevE.54.4178

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The effects of electron-beam prebunching on the radiation buildup process in a free-electron maser oscillator operating in the frequency range of 4-5 GHz were studied. An electron beam of 10 keV, 1 A was prebunched by means of a microwave tube section, accelerated to 70 keV, transported through a drift region by a solenoidal magnetic field and injected into a linearly polarized wiggler in which a free-electron laser interaction takes place. Single-frequency selection and locking due to electron-beam prebunching was demonstrated; we show that by tuning the electron-beam prebunching frequency we can set the oscillator frequency at any of the resonant frequencies of the cavity within the net gain bandwidth. An appreciable speedup of the oscillation buildup due to prebunching was also observed; the buildup time of radiation in the presence of prebunching is shortened compared to the case of the free-running oscillator.

引用

页码：4178 / 4187

页数：10

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