Please use this identifier to cite or link to this item: https://doi.org/10.1088/0953-8984/7/6/014
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dc.titleThe charging behaviour and internal electric field of PMMA irradiated by a kiloelectronvolt electron beam
dc.contributor.authorChen, H.
dc.contributor.authorGong, H.
dc.contributor.authorOng, C.K.
dc.date.accessioned2014-10-16T09:44:45Z
dc.date.available2014-10-16T09:44:45Z
dc.date.issued1995
dc.identifier.citationChen, H., Gong, H., Ong, C.K. (1995). The charging behaviour and internal electric field of PMMA irradiated by a kiloelectronvolt electron beam. Journal of Physics: Condensed Matter 7 (6) : 1129-1137. ScholarBank@NUS Repository. https://doi.org/10.1088/0953-8984/7/6/014
dc.identifier.issn09538984
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/98248
dc.description.abstractA scanning electron microscope (SEM) is employed in the investigation of the charging behaviour of polymethylmethacrylate (PMMA) specimens. Charges trapped in the PMMA specimens are measured using the SEM mirror image method under different conditions of radiation time, accelerating voltages and beam currents. The influence of the surface potential established and the internal electric field arising in the PMMA specimen is studied, and the latter is found to play a more important role. There exists a saturation value for the charge that can be trapped in the specimen under a fixed charging condition. Beyond the saturation value, the trapped charge destabilizes and surface discharge is observed. A Gaussian model of charge distribution is used for the calculation of the electric field. The strength of the electric field initiating surface discharge is estimated.
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentMATERIALS SCIENCE
dc.contributor.departmentPHYSICS
dc.description.doi10.1088/0953-8984/7/6/014
dc.description.sourcetitleJournal of Physics: Condensed Matter
dc.description.volume7
dc.description.issue6
dc.description.page1129-1137
dc.identifier.isiutA1995QH27300014
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