System Development and Performance Testing of a W-Band Gyrotron

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Journal of Infrared, Millimeter, and Terahertz Waves, ISSN: 1866-6892, Vol: 37, Issue: 3, Page: 209-229

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Kim, Sung Gug, Sawant, Ashwini, Lee, Ingeun, Kim, Dongsung, Choe, MunSeok, Won, Jong-Hyo, Kim, Jungho, So, Joonho, Jang, Won, Choi, EunMi
Springer Nature, SPRINGER
Physics and Astronomy, Engineering, Gyrotron, High-power sources, Millimeter wave
article description
A high-power W-band gyrotron has been designed and performance tested in Korea, with an output power in the range of tens of kilowatts. The gyrotron consists of a diode-type electron gun operating at 40 kV, a TE6,2 mode interaction cavity, and a mode converter for producing a highly Gaussian output mode beam. Presented here are the detailed component design procedure and the experimental results of the gyrotron’s performance evaluation. A maximum power of 62 kW was achieved with an efficiency of 22 %, and a highly Gaussian output beam was observed. The gyrotron’s output beam is analyzed, and its transmission through an oversized waveguide is discussed. This gyrotron is the first gyrotron developed in Korea with high power greater than 10 kW and high frequency greater than 90 GHz.

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