Conductivity effect of UV-c radiation on solid insulators

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dc.contributor.author Dervos, CT en
dc.contributor.author Skafidas, PD en
dc.date.accessioned 2014-03-01T02:41:32Z
dc.date.available 2014-03-01T02:41:32Z
dc.date.issued 1998 en
dc.identifier.issn 01642006 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/30514
dc.subject Global Environmental Change en
dc.subject i-v characteristic en
dc.subject Polyethylene en
dc.subject Steady State en
dc.subject Transient Response en
dc.subject Uv Radiation en
dc.subject Poly Vinyl Chloride en
dc.subject.other Current voltage characteristics en
dc.subject.other Electric conductivity of solids en
dc.subject.other Transients en
dc.subject.other Ultraviolet radiation en
dc.subject.other Radiation induced conductivity (RIC) en
dc.subject.other Electric insulating materials en
dc.title Conductivity effect of UV-c radiation on solid insulators en
heal.type conferenceItem en
heal.identifier.primary 10.1109/ELINSL.1998.694804 en
heal.identifier.secondary http://dx.doi.org/10.1109/ELINSL.1998.694804 en
heal.publicationDate 1998 en
heal.abstract Due to global environmental changes out-door insulators are nowadays exposed to significantly higher UV radiation compared to the corresponding levels of the past. In this work, the resulting dc I-V characteristics during material exposure to UV-c excitation have been investigated for the steady state, and transient response following radiation cut-off. The examined materials were phenolic resins (bakelite and pertinax), polyethylene (PE), poly (vinyl chloride) (PVC), poly(terafluoroethylene) (PTFE), and poly(methyl methacrylate) (PMMA). Measuring processes were identical for comparison purposes. The samples had uniform field, gold electrodes, and were cleaned in a vacuum. According to the experimental results, only the phenolic resins did not exhibit significant radiation induced currents. Radiation Induced Conductivity (RIC) was recorded for all other materials. However, their transient profiles following the illumination cut-off were vastly different; some materials, exhibit negative current polarities over extended period. Possible excitation mechanisms, as well as, physical and chemical relaxation processes are discussed. en
heal.publisher IEEE, Piscataway, NJ, United States en
heal.journalName Conference Record of IEEE International Symposium on Electrical Insulation en
dc.identifier.doi 10.1109/ELINSL.1998.694804 en
dc.identifier.volume 2 en
dc.identifier.spage 338 en
dc.identifier.epage 342 en

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