摘要:
根据两腔振荡器和返波管的特点研制了过模结构返波振荡器,该器件主要由调制腔和换能腔（慢波结构）两部分组成.调制腔既是电子束的预调制腔,也是微波谐振反射腔,它同换能腔形成一个过模微波谐振腔,经调制腔调制后的电子束在换能腔中实现束波能量转换.根据加速器的电子束参数（束压为1MV,束流为20kA）设计了一个X波段的高功率微波器件,2.5维粒子模拟程序模拟得到微波频率为8.25GHz,输出功率为5.70GW.用超导磁体作为引导磁场,单次运行输出微波功率为5.20GW,微波频率为（8.25±0.01）GHz;脉冲重复频率30Hz运行时,输出微波功率为5.06GW,脉冲宽度为13.8ns.
Abstract:
A new type of high power microwave device is developed based on bitron and backward wave oscillator.The device is composed of two parts：the modulation cavity and the extraction cavity （which is similar to slow wave structure）.The modulation cavity acts as electron beam modulator and microwave reflector,which forms a microwave resonator in combination of the extraction cavity.The electron is modulated when it passes through the modulation cavity,and the high power microwave is generated when the modulated beam passes through the extraction cavity.An X-band high power microwave device is designed for a 20 GW accelerator,and the simulation results are frequency 8.25 GHz and output power 5.70 GW.Using superconducting magnet as guiding magnet,a microwave power of 5.20 GW at X-band （frequency （8.25±0.01）GHz） is obtained in single pulse mode.The radiation power is 5.06 GW when the repetition rate is 30 Hz,and the pulse length is 13.8 ns.
首页
登录
注册
下载: