120-240千兆赫步进可调谐兆瓦回旋管

K. Kreischer, R. Temkin
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引用次数: 0

摘要

脉冲(3μsec)回旋管振荡器在126 ~ 243 GHz频率范围内产生了高输出功率。峰值功率为645千瓦,总效率为28%。通过改变腔磁场,观察到在TEm,p,1模式序列中p = 2,3和4的阶跃调谐。观测到的最高阶模为243ghz的te22,4,1,对应于12个自由空间波长的空腔直径。在此模式下,在80kv和35a下测量输出功率为470kw。
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A 120–240 GHz step tunable megawatt gyrotron
A pulsed (3μsec) gyrotron oscillator which can be scaled to cw operation has generated high output powers at frequencies between 126 and 243 GHz. Peak powers of 645 kW and total efficiencies of 28% were measured. By varying the cavity magnetic field, step tuning through a sequence of TEm,p,1 modes with p = 2,3 and 4 was observed. The highest order mode observed was the TE22,4,1 at 243 GHz, which corresponds to a cavity diameter of 12 free space wavelengths. An output power of 470 kW was measured in this mode at 80 kV and 35 A.
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