Space charge dynamics in electron beam-irradiated PMMA

doi:10.1007/s11706-007-0020-2

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Front. Mater. Sci. ›› 2007, Vol. 1 ›› Issue (1) : 109-113. DOI: 10.1007/s11706-007-0020-2

Space charge dynamics in electron beam-irradiated PMMA

ZHENG Feihu¹, ZHANG Yewen¹, GONG Bin¹, CHEN Lingyan¹, XU Jiaqiang², WANG Chuanshan²

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Abstract

In this study, space charge was introduced into polymethyl methacrylate (PMMA) samples by electron beam. The effect of the electron beam on the conductivity and the permittivity of the PMMA sample were investigated, and the breakdown mechanism of the samples during charge detrapping was also studied. The experimental results clearly show that not only space charge injection but also space charge detrapping can lead to the breakdown of the samples. The dynamics of injected charges in the radiated PMMA samples and the mechanism of the breakdown resulting from the rapid discharge are discussed.

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ZHENG Feihu, ZHANG Yewen, GONG Bin, CHEN Lingyan, XU Jiaqiang, WANG Chuanshan. Space charge dynamics in electron beam-irradiated PMMA. Front. Mater. Sci., 2007, 1(1): 109‒113 https://doi.org/10.1007/s11706-007-0020-2