Poynting Vector Method for Reflector Beam Shaping

Dong, Xinyong; Jin, Ming; Bai, Ming

doi:10.1109/lawp.2019.2900718

Cited by 5 publications

(2 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…And in Figure 3, we can see that the major competing modes, TE 24,10 and TE 26,10 for TE 25,10 , are fairly well separated. Considering the higher longitudinal index modes, ones can ignore the modes of TE 25,10,2 and TE 25,10,3 , because they have much lower quality factors than the modes whose value of q is 1 (i.e., the TE 25,10,1 mode in the present case) [15,16]. Hence, the TE 25,10 mode was chosen as the operating mode for the…”

Section: Mode Selectionmentioning

confidence: 99%

See 1 more Smart Citation

The Development of 170 GHz, 1 MW Gyrotron for Fusion Application

Zhang¹,

Xu²,

Bai

et al. 2022

Electronics

Self Cite

View full text Add to dashboard Cite

This paper presents the overall conceptual design of a 170 GHz, 1 MW gyrotron for plasma heating applications in thermonuclear fusion reactors. The operating mode is carefully selected with consideration of mode competition. The TE25,10 mode is determined as the operating mode in the present study. A weakly tapered conventional resonator is used for the study of the RF behavior, and multimode calculations are carried out for power and efficiencies. The optimized structure of the beam tunnel can further attenuate low-frequency oscillation. The design studies of a triode-type magnetic injection gun, quasi-optical mode converter, and single-disc sapphire window are also described. In addition, novel cold test methods which can effectively validate assembles are designed. In 2021, a prototype gyrotron was fabricated to validate the electronic–optic system and RF system. The current results obtained support an output power of 210 kW and efficiency of 15.9% through an initial low-power experiment. On the basis of the optimized design, an industrial prototype gyrotron is under fabrication as the heating source for the thermonuclear experimental reactor.

show abstract

Section: Mode Selectionmentioning

confidence: 99%

“…In the Denisov launcher, the wall perturbations increase the Gaussian mode content compared to the smooth one. Furthermore, the diffraction losses are reduced by decreasing the microwave field amplitude at the cutting area [16,17].…”

Section: Quasi-optical Mode Convertermentioning

confidence: 99%