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Discharge (DBD) reactor is frequently used in sterilization with
atmospheric pressure plasma in pulsed corona or glow discharge
mode. The suggested mechanisms responsible for sterilization
include oxygen excited states, ozone, high temperature, UV, and
run away electron bombardment. Although which is the key
mechanism is yet to be identified due to variations in reactor
design and experiment condition, it is generally believed a
higher plasma density would facilitate the sterilization
process, while a lower ion temperature lessen the surface
damage, but the these two imply contradictory output
characteristics from the pulsed power supply. Higher pulse
voltage or repetition frequency not necessarily creates better
sterilization effect. A compact, energy efficient power sup ply
is desired in many portable applications, but often energy is
wasted as a reflection due to impedance mismatch between
transmission line and the impedance of DBD, or dissip