Abstract
AbstractSpace charge accumulation for various glass materials under DC stress was studied by using a pulse electroacoustic (PEA) method. We should make an acoustic matching between the sample and electron on the high‐voltage side when the hetero‐space charge distribution in glass materials is measured. The acoustic pressure wave generated from the induced charge at the high‐voltage side is canceled by the reflected one generated from hetero‐charge accumulated in the sample. Large hetero‐charge is observed in the glass materials containing MgO and CaO compound compared to the quartz glass containing no such compounds. © 2004 Wiley Periodicals, Inc. Electr Eng Jpn, 148(1): 19–27, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.10260
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