A needle-tip discharge device for ablation of solid surface
A discharge device, solid surface technology, applied in the field of elemental analysis in solid samples
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[0027] see figure 1 , the embodiment of the present invention includes a high-voltage power supply 1 (pulse power supply), a needle body support platform 2, a needle body 3, a sample stage 4, a cavity 5 and a working gas.
[0028] The electrodes of the high-voltage power supply 1 are respectively connected to the needle body 3 and the sample stage 4, the needle body support platform 2 is arranged on the upper part of the cavity 5 and is sealed with the cavity 5, and the sample stage 4 is arranged at the lower part of the cavity 5 and is connected with the cavity 5 in a sealed manner , the needle body 3 passes through the needle body support platform 2 and extends into the cavity 5, the needle tip of the needle body 3 faces the surface of the sample table 4, the inside of the cavity 5 is a sealed chamber, and the cavity 5 is provided with an inlet 51 and an outlet of the working gas 52, the arrow represents the air intake direction. The working gas is located in the sealed cha...
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