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Required condition for generating homogeneous atmospheric plasmas in Dielectric Barrier Discharge is determined by the uniform distribution of electrons, which are charged up on the surface of dielectrics during the preceding discharge and play a role of the initial electrons as the seeds of following electron avalanche. We developed a new Barrier Discharge System Using Dielectrics with Uniformly-Distributed Metal Pieces Inside, which makes it possible to control the distribution of electrons charged up on the surface of dielectrics. The new DBD device was evolutionarily designed after the Capacity-Coupled Multi-Discharge, CCMD.

more   The Paper of Technical Meeting on Plasma Science and Technology IEE Japan, PST-13-011,

       Slide

    When the breakdown is just starting in gaseous diodes, the front of plasma column generated near the anode is quickly moving toward the cathode. We discuss the moving velocity of the plasma front (that is propagation speed of streamer). This text is partially revised the previous report “ An Estimation of Critical Electron Density at Just Starting Breakdown in Gases”

text is placed on the STPIG site


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About 25 years ago, we proposed the new conceptual model of cathode sheath, which is based on the collisionless sheath model and the plasma balance equations. This model could clearly explain the reason why the electric field varies linearly in the normal glow cathode fall region. Here, we describe once more the outline of the explanation for the linearly varying field in the normal glow cathode fall.   More

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