ELECTRICAL-CONDUCTIVITY OF POLYTETRAFLUOROETHYLENE IN DC AND AC ELECTRIC-FIELDS UNDER CONTINUOUS ELECTRON-BOMBARDMENT

Authors
KHATIPOV SA TURDYBEKOV KM MILINCHUK VK
Citation
Sa. Khatipov et al., ELECTRICAL-CONDUCTIVITY OF POLYTETRAFLUOROETHYLENE IN DC AND AC ELECTRIC-FIELDS UNDER CONTINUOUS ELECTRON-BOMBARDMENT, High energy chemistry, 27(3), 1993, pp. 198-207
Citations number
16
Categorie Soggetti
Chemistry Physical
Journal title
High energy chemistry → ACNP
ISSN journal
00181439
Volume
27
Issue
3
Year of publication
1993
Pages
198 - 207
Database
ISI
SICI code
0018-1439(1993)27:3<198:EOPIDA>2.0.ZU;2-5
Abstract
A study has been made of the time dependence of the radiation current density in dc and ac (10(2)-5-10(3) Hz) electric fields (10(3)-5.10(5) V/cm) at temperatures from 80 to 393 K and dose rates from 5-10(3) Gy /sec, for PTFE films (50-180 mum) with various thermal prehistories, w hen exposed to continuous bombardment by 9-MeV electrons. It has been shown that the experimental results cannot be interpreted from the sta ndpoint of free-charge conduction; they can be explained qualitatively within the framework of concepts of inhomogeneous ionization of the s ubstance, due to the formation of short tracks.