Space-charge dynamics of polymethylmethacrylate under electron beam irradiation
- 9 June 1997
- journal article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 9 (23) , 5027-5031
Abstract
Space-charge dynamics of polymethylmethacrylate (PMMA) under electron beam irradiation has been investigated employing a scanning electron microscope. Assuming a Gaussian space-charge distribution, the distribution range has been determined using a time-resolved current method in conjunction with a mirror image method. is found to increase with irradiation time and eventually attain a stationary value. These observations have been discussed by taking into account radiation-induced conductivity and charge mobility.Keywords
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