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The method of the photo-stimulated discharge current (PSDC) for measuring trap energy levels in dielectrics has received considerable attention in the recent past. It is the optical equivalent of TSDC but much more powerful than TSDC. In this paper, the films of LLDPE are charged either with DC high voltage or in a point-to-plane corona discharge. The experimental results show the relationship between...
This paper deals with initiation of light emission and electrical trees in LDPE/MgO nanocomposite. Specimens were prepared in such a way that a tungsten needle of 50 mum phi and 1mumR was inserted into dielectrics with a spacing of 0.4 mm between high voltage and ground. Light emission was observed by an ICCD camera, and tree shapes were examined by an optical microscope. As a result, it was found...
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