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Influence of gamma radiation on the properties of polyethylenectapthalate (PEN)

Mackersie, J.W. and Given, M.J. and Fouracre, R.A. (2004) Influence of gamma radiation on the properties of polyethylenectapthalate (PEN). In: Proceedings of the 2004 IEEE international conference on solid dielectrics vols 1 & 2. IEEE, New York, pp. 387-391. ISBN 0780383486

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Abstract

Foil samples of polyethylenenapthalate, 25 mum thick have been subjected to radiation doses of 26.5 and 158.4 kGy from a Co-60 source to promote ageing. The current transients produced by the application and removal of a DC voltage to the samples were measured over an extended period of time. Peaks in both the charging and discharge currents were observed whose positions were dependent on both temperature and radiation dose. Activation energies were obtained from isochronal charging currents and from the frequency domain. These showed a dose dependence. Curve fitting to the initial discharge transient and to the dielectric loss peak in the frequency domain indicated that the ageing had not produced changes in the type of loss mechanisms. A linear relationship was found between the received dose and the dieelctric loss peak position.

Item type: Book Section
ID code: 39581
Keywords: influence, gamma radiation, properties, polyethylenectapthalate, PEN, Aging , , Voltage , Time measurement , temperature dependence, gamma rays , frequency domain analysis, fault location , dielectric losses , curve fitting , current measurement , Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 07 May 2012 16:15
    Last modified: 06 Sep 2014 08:18
    URI: http://strathprints.strath.ac.uk/id/eprint/39581

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