hao xiwei, qiu shi, hou qing, et al. Damage phenomena of dielectric window material under X-band high power microwave[J]. High Power Laser and Particle Beams, 2009, 21.
Citation:
hao xiwei, qiu shi, hou qing, et al. Damage phenomena of dielectric window material under X-band high power microwave[J]. High Power Laser and Particle Beams, 2009, 21.
hao xiwei, qiu shi, hou qing, et al. Damage phenomena of dielectric window material under X-band high power microwave[J]. High Power Laser and Particle Beams, 2009, 21.
Citation:
hao xiwei, qiu shi, hou qing, et al. Damage phenomena of dielectric window material under X-band high power microwave[J]. High Power Laser and Particle Beams, 2009, 21.
The microwave discharge experiments of dielectric window were performed in vacuum under X-band HPM with the frequency of 9.4 GHz and the power of 1 GW. Several typical dielectric window materials, i.e., PTFE, PMMA, LDPE and HDPE, were employed, and the influence of different surface treatments as notching and polishing was investigated. After microwave breakdown experiments, the surface morphology of dielectric samples were analyzed with the macroscopic and microcosmic view. It was found that there were obvious single-surface tree-like breakage phenomena occurred along the direction of microwave electric field, and the surface destroy status was significantly affected by the different surface treatment. It is considered that the tree-like depredation channels are closely related to the app
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