Conductivity effect of UV-c radiation on solid insulators

Dervos, CT; Skafidas, PD

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