Kenji Watanabe's scientific contributions
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It was automatically created by ResearchGate to create a record of this author's body of work. We create such pages to advance our goal of creating and maintaining the most comprehensive scientific repository possible. In doing so, we process publicly available (personal) data relating to the author as a member of the scientific community.
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Publication (1)
In order to clarify the instability phenomena of a low current vacuum arc, characterized by noise on the current trace prior to the actual current chopping, an analysis of copper cathode spot has been made. For the analysis, cathode spot region is recognized as the collisionless space charge sheath connected with singly ionizad collisional plasmas....
Citations
... The prior studies revealed that the unstable arc phenomena occurred at current I o (I C ) before the chopping current (I c) is triggered, and this phenomena triggered the current chopping [2], [3]. The chopping current I c largely depends on the circuit parameters that determine recovery voltage after cut off, particularly on the capacitance C connected between electrodes. ...
