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Degradation of polyimide under irradiation with swift heavy ions

Severin, Daniel and Ensinger, Wolfgang and Neumann, Reinhard and Trautmann, Christina and Walter, Gertrud and Alig, Ingo and Dudkin, Sergej :
Degradation of polyimide under irradiation with swift heavy ions.
In: Nuclear instruments & methods in physics research / B, 236 (1-4) pp. 456-460.
[Article] , (2005)

Abstract

Stacks of polyimide foils were irradiated with different swift heavy ions (Ti, Mo, Au) of 11.1 MeV/nucleon energy and fluences between 1 × 1010 and 2 × 1012 ions/cm2. Beam-induced degradation of the imide group was analyzed by Fourier-transform infrared spectroscopy studying the absorption band at 725 cm−1 as a function of dose. In the UV–Vis spectral range, the absorption edge is shifted to larger wavelengths indicating carbonization. Such modifications are linked to the deposition of a critical dose of 2.7 MGy (Ti) and 1 MGy (Mo, Au). In addition, irradiation-induced changes of the electrical conductivity were studied by means of dielectric spectroscopy.

Item Type: Article
Erschienen: 2005
Creators: Severin, Daniel and Ensinger, Wolfgang and Neumann, Reinhard and Trautmann, Christina and Walter, Gertrud and Alig, Ingo and Dudkin, Sergej
Title: Degradation of polyimide under irradiation with swift heavy ions
Language: English
Abstract:

Stacks of polyimide foils were irradiated with different swift heavy ions (Ti, Mo, Au) of 11.1 MeV/nucleon energy and fluences between 1 × 1010 and 2 × 1012 ions/cm2. Beam-induced degradation of the imide group was analyzed by Fourier-transform infrared spectroscopy studying the absorption band at 725 cm−1 as a function of dose. In the UV–Vis spectral range, the absorption edge is shifted to larger wavelengths indicating carbonization. Such modifications are linked to the deposition of a critical dose of 2.7 MGy (Ti) and 1 MGy (Mo, Au). In addition, irradiation-induced changes of the electrical conductivity were studied by means of dielectric spectroscopy.

Journal or Publication Title: Nuclear instruments & methods in physics research / B
Volume: 236
Number: 1-4
Publisher: Elsevier
Uncontrolled Keywords: Polyimide; Polymer degradation; Swift heavy ion irradiation
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Material Analytics
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 20 Nov 2008 08:20
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