期刊
JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES
卷 31, 期 7, 页码 775-790出版社
SPRINGER
DOI: 10.1007/s10762-010-9643-y
关键词
Gyrotron; DNP-NMR; Frequency tunable; sub-THz; High power radiation source
资金
- Japan Science and Technology Agency (JST)
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) in Japan
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.
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