High quality operation of a submillimeter wave gyrotron
High quality operation of a submillimeter wave gyrotron
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亚毫米波陀螺仪的高质量运行
DOI：
10.1109/icimw.2005.1572598
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
T. Hori
中科院分区：
文献类型：
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作者：
I. Ogawa;T. Idehara;H. Hoshizuki;M. Myodo;K. Nagao;S. Mitsudo;T. Hori
的输出（cw操作，f=301 GHz，P/spl sim/20 W）的Gyrotron FU IV的稳定性通过降低阴极电压和阳极电压的波动而高达/spl Delta/P/P/spl sim/1%和/spl Delta/f/spl sim/50 kHz（/spl Delta/V/sub k/ /spl sim/ 0.6V，/spl Delta/V/sub a/ /spl sim/ 0.2 V），通过引入由电阻、感应线圈和电容组成的平滑电路。通过应用锁相控制，可进一步稳定输出频率（/spl Delta/f< 1 kHz，/spl Delta/f/f<3/spl乘以/10/sup-9/）。设计了一种具有非线性上锥特性的谐振腔，并在回旋管FU VA中实现。辐射图的测量已经证实了高纯度模式操作。利用准光学系统将TE/sub 03/和TE/sub 13/模输出光束转换为双高斯光束。
The outputs (cw operation, f=301 GHz, P/spl sim/20W) of the Gyrotron FU IV are stabilized up to /spl Delta/P/P/spl sim/1% and /spl Delta/f/spl sim/50 kHz by decreasing the fluctuations of the cathode voltage and the anode voltage (/spl Delta/V/sub k/ /spl sim/ 0.6V, /spl Delta/V/sub a/ /spl sim/ 0.2 V), via introducing smoothing circuits consisting of resistors, induction coils and capacitors. Further stabilization of output frequency (/spl Delta/f< 1 kHz, /spl Delta/f/f<3/spl times/10/sup -9/) is attained by applying phase lock control. A carefully designed cavity resonator with nonlinear up-taper has been developed and implemented in Gyrotron FU VA. The measurements of the radiation patterns have confirmed high-purity mode operations. The output radiation of TE/sub 03/ and TE/sub 13/ modes are converted into bi-Gaussian beams by a quasioptical system.