Cart (Loading....) | Create Account
Close category search window
 

The influence of gamma radiation on space charge formation in low-density polyethylene

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Chen, G. ; Dept. of Electr. Eng., Southampton Univ., UK ; Banford, H.M. ; Davies, A.E.

Energetic ionising radiation can alter the chemical structure of polymeric materials by various mechanisms and may also give rise to the presence of trapped charge within the material, the trapping characteristics of which can be influenced by these radiation-induced structural alterations. In the present work, the formation of space charge in irradiated low-density polyethylene (LDPE) was investigated using a laser-induced pressure pulse (LIPP). Specimens of LDPE, 350 μm thick, were irradiated in a 60Co γ-source in room air to various doses and the results indicate that space-charge distributions are dependent on both dose and applied electric stress, including the length of time for which the stress is applied. For example, at a dose of 10 kGy or less a stress of 25 kV/mm results in an abundance of positive charge adjacent to the cathode. As the stress is increased to 60 kV/mm the positive charge extends to the anode. At doses above 50 kGy, however, charge formation within the dielectric becomes more complicated in that as well as having positive charge adjacent to both electrodes there can be a substantial negative charge in the middle of the test specimen

Published in:

Electrical Insulation and Dielectric Phenomena, 1996., IEEE 1996 Annual Report of the Conference on  (Volume:2 )

Date of Conference:

20-23 Oct 1996

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.