Tao Song, Wei Wang, Diwei Liu, Shenggang Liu. Terahertz Gyrotron Used for Dynamic Nuclear-Polarization-Enhanced Nuclear Magnetic Resonance[J]. Chinese Journal of Lasers, 2019, 46(6): 0614001
- Chinese Journal of Lasers
- Vol. 46, Issue 6, 0614001 (2019)
Fig. 1. Development status of solid-state devices and vacuum electronic devices
Fig. 2. Structure of three-section cavity and amplitude of cold cavity field
Fig. 3. Structure of multi-section cavity
Fig. 4. Diffractive quality factor Qd versus angle θ3
Fig. 5. Resonant frequency f0 versus angle θ3
Fig. 6. Structures of MIG. (a) Single-anode MIG; (b) double-anode MIG
Fig. 7. Variation of electron beam quality. (a1)-(a3) Electron beam quality versus operating magnetic field at fixed voltage; (b1)-(b3) electron beam quality versus operating voltage at fixed magnetic field
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Table 1. Experimental research progress on THz gyrotron used for DNP-NMR system
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Table 2. Parameters of 500 GHz frequency-tunable gyrotron
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