Please use this identifier to cite or link to this item:
|Title:||The charging behaviour and internal electric field of PMMA irradiated by a kiloelectronvolt electron beam||Authors:||Chen, H.
|Issue Date:||1995||Citation:||Chen, 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||Abstract:||A 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.||Source Title:||Journal of Physics: Condensed Matter||URI:||http://scholarbank.nus.edu.sg/handle/10635/98248||ISSN:||09538984||DOI:||10.1088/0953-8984/7/6/014|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Oct 16, 2019
WEB OF SCIENCETM
checked on Oct 8, 2019
checked on Oct 12, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.