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Principle of measuring space charge distributions in insulating materials through Pressure Wave Propagation (PWP) method is discussed in this paper. The principle is based on perturbation of electric charge distribution in the insulator by mechanical pressure which ultimately affects the resulting current through external circuit. The relationship between applied pressure, space charge distribution...
Recently, some accidents in spacecraft due to charging up by irradiation of charged particles have been reported. Some of them are caused by a surface discharge, which normally takes place in a plasma environment in space. Some others seem to be caused by a discharge due to an accumulation of charge in the bulk of materials in a relatively high-altitude environment. To investigate the charge accumulation...
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