Zhiwei Dang, Shifeng Li, Zhanliang Wang, Hua Huang, Tengfang Wang, Zhenbang Liu, Yubin Gong. Electron beam introduction of Ka-band coaxial multi-beam relativistic klystron amplifier[J]. High Power Laser and Particle Beams, 2020, 32(4): 043001
- High Power Laser and Particle Beams
- Vol. 32, Issue 4, 043001 (2020)
Fig. 1. Schematic of multi-beam diode
Fig. 2. Initial multi-beam electron beam
Fig. 3. Electric field distribution on cathode
Fig. 4. Optimized multi-beam electron beams
Fig. 5. Total beam current and drift tube current
Fig. 6. Photo of the diode for experiment and its sectional schematic
Fig. 7. Cathodes of the diode
Fig. 8. Experimental waveforms
Fig. 9. Multiple electron beam spots on the drift tube port and on the drift tube end
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Table 1. Effects of multi-beam cathode length on injection efficiency
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Table 2. Effects of magnetic field intensity on injection efficiency
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Table 3. Effects of voltage on injection efficiency
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Table 4. Effects of distance between anode and cathode on injection efficiency
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