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. 2021 Feb 10;18(4):1683. doi: 10.3390/ijerph18041683

Figure 15.

Figure 15

Coaxial excilamp design (top) and external view during operation (bottom): 1—excilamp bulb; 2—external perforated electrode; 3—internal perforated electrode; 4—discharge gap; 5—high-frequency voltage generator.