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Aging Effect and Induced Electric Phenomena on Dielectric Materials Irradiated With High Energy Electrons

Paulmier, Thierry and Hanna, Rachelle and Belhaj, Mohamed and Dirassen, Bernard and Payan, Denis and Balcon, Nicolas and Tonon, Claire and Dantras, Eric and Bernès, Alain Aging Effect and Induced Electric Phenomena on Dielectric Materials Irradiated With High Energy Electrons. (2013) IEEE Transactions on Plasma Science, 41 (12). 3422-3428. ISSN 0093-3813

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Official URL: http://dx.doi.org/10.1109/TPS.2013.2279302

Abstract

The high radiation dose received by space used polymers may greatly alter their electric properties. This effect could, for instance, reduce significantly radiation-induced conductivity (RIC) leading to high charging risks that were not predicted from pristine sample. For an optimized qualification and prediction, it is therefore highly important to characterize the charging properties of polymers and their evolution as a function of the received dose. This paper aimed at studying aging of electric properties of four different polymers (Teflon FEP, Kapton, polyepoxy DP 490 adhesive, and silicon QS1123 adhesive) at high dose level (105 and 106 Gy). We have been able to demonstrate that aging could lead to the reduction of RIC on some polymers (for polyepoxy and silicone adhesives, and FEP) or inversely to the increase of RIC on others (e.g., Kapton). Ionization effect must, however, be considered in the analysis of the results. Relaxation processes could drastically affect the charging profile and macroscopic electric properties.

Item Type:Article
Additional Information:Thanks to IEEE editor. The definitive version is available at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6588584
HAL Id:hal-01166254
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National d'Études Spatiales - CNES (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > European Aeronautic Defence and Space company - EADS (FRANCE)
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Deposited By: cirimat webmestre
Deposited On:22 Jun 2015 12:13

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