Continuously Frequency Tunable High Power Sub-THz Radiation Source-Gyrotron FU CW VI for 600 MHz DNP-NMR Spectroscopy
Continuously Frequency Tunable High Power Sub-THz Radiation Source-Gyrotron FU CW VI for 600 MHz DNP-NMR Spectroscopy
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DOI：
10.1007/s10762-010-9643-y
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发表时间：
2010-07-01
影响因子：
2.9
通讯作者：
Fujiwara, Toshimichi
中科院分区：
文献类型：
--
作者：
Idehara, Toshitaka;Kosuga, Kosuke;Fujiwara, Toshimichi
采用15 T超导磁体的高频回旋管Gyrotron FU CW VI在400 GHz附近实现了1.5 GHz的连续频率调谐。工作在TE（06）腔模的基本回旋共振下，具有许多高阶轴向模。在12 kV的低加速电压下，在圆波导系统的端部测量的输出功率范围为10至50瓦。束流也很低。大约250 mA。该回旋管被设计为用于600 MHz DNP-NMR光谱的可拆卸辐射源。介绍了回旋管FU CW虚拟仪器的设计和运行结果。
A high frequency gyrotron with a 15 T superconducting magnet named Gyrotron FU CW VI has achieved continuous frequency tuning through the relatively wide range of 1.5 GHz near 400 GHz. The operation is at the fundamental cyclotron resonance of the TE(06) cavity mode with many higher order axial modes. The output power measured at the end of the circular waveguide system ranges from 10 to 50 watts at the low acceleration voltage of 12 kV for beam electrons. The beam current is also low. It is around 250 mA. This gyrotron is designed as a demountable radiation source for the 600 MHz DNP-NMR spectroscopy. The design and operation results of the gyrotron FU CW VI are presented.