Radiation Effects in Insulator Materials.
Abstract
The thermal- and radiation-induced charges released to an external circuit have been examined for a set of polyethylene capacitors made from materials of differing crystallinities and molecular structures. Persistent internal fields were created by burn-in. It was found that the net thermal or radiation response of samples subject to burn-in is significantly enhanced if compared to those that were annealed. There was no significant dependence of sample response on fractional crystallinity for capacitors polarized under burn-in. The radiation and thermal response of a set of semirigid Teflon TFE dielectric cables has been evaluated. This has been done to (1) relate their behavior, especially the first pulse response, to the conditions of irradiation, and (2) to see if there is a correlation between the net charge released to an external circuit by radiation and by heating similar to that found for Teflon capacitors. The results of the thermally stimulated current measurements imply that the stored charge released from these cables is trapped near their surface rather than constituting a uniform volume polarization.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 11, 1977
- Accession Number
- ADA044535
Entities
People
- J. Wilkenfeld