Modeling electric field distribution on insulator under electron bombardment in vacuum
Charging and discharging phenomenon on the surface of materials can be found in plasma display panel, spacecraft charging, high voltage insulator, etc. This report gives a simple explanation on this phenomenon. A scanning electron microscope was used not only as a tool to produce energetic elect...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
World Academy of Science, Engineering and Technology
2010
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/16708/ http://irep.iium.edu.my/16708/ http://irep.iium.edu.my/16708/1/Modeling_electric_field_distribution_on_insulator_under_electron_bombardment_in_vacuum.pdf |
| Summary: | Charging and discharging phenomenon on the surface
of materials can be found in plasma display panel, spacecraft
charging, high voltage insulator, etc. This report gives a simple
explanation on this phenomenon. A scanning electron microscope
was used not only as a tool to produce energetic electron beam to
charge an insulator without metallic coating and to produce a surface
discharging (surface breakdown/flashover) but also to observe the
visible charging and discharging on the sample surface. A model of
electric field distribution on the surface was developed in order to
explain charging and discharging phenomena. Since charging and
discharging process involves incubation time, therefore this process
can be used to evaluate the insulation property of materials under
electron bombardment. |
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