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This paper presents a novel junction termination technique, named Recess Junction Termination (RJT), for power devices. This new junction termination improves the breakdown voltage of a planar junction by a silicon recess located to create a positive bevel, which reduces the peak of electric field. The RJT can reduce a thermal budget for the RESURF (REduced SURface Field) layer by the silicon recess,...
Reducing maintenance cost is very important for electric power utilities in order to have the advantage in competitive power market. Besides the reliability of facilities is required to be kept in certain level. In such situation, it is necessary to know the machine condition surely in order to conduct condition based maintenance (CBM).
A non-intrusive temperature sensing system is proposed. It is developed for temperature measurement of liquid sodium coolant in fast breeder reactor. In this paper, our feasibility study by 2-dimensional numerical simulation, small size experimental test done by Japan Nuclear Cycle Development Institute, and our theoretical analysis are described. Feasibility of this system is evaluated and proven.
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