a. Plasma emission captured by CCD

b. 3D rendering of the plasma reactor assembly.

c. Nanosecond high voltage pulse waveform

I designed an electrode assembly to pair with a electrospinning source plate/ground electrode (figure b highlighted in orange) to form a plasma reactor. The assembly was constructed from glass tubing and could be adjusted in the x, y, and z directions to change the high voltage electrode (figure b highlighted in green) gap and position relative to the ground electrode. The high voltage electrode was isolated from the assembly using a PEEK jacket and was fabricated using a borosilicate glass dielectric potted with an aluminum electrode using conductive silver epoxy. The reactor was driven using a nanosecond pulse generator, whose waveform under this load can be seen in figure c.