| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9817874 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2005 | 5 Pages |
Abstract
Stacks of polyimide foils were irradiated with different swift heavy ions (Ti, Mo, Au) of 11.1Â MeV/nucleon energy and fluences between 1Â ÃÂ 1010 and 2Â ÃÂ 1012Â ions/cm2. Beam-induced degradation of the imide group was analyzed by Fourier-transform infrared spectroscopy studying the absorption band at 725Â cmâ1 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 2.7Â MGy (Ti) and 1Â MGy (Mo, Au). In addition, irradiation-induced changes of the electrical conductivity were studied by means of dielectric spectroscopy.
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
D. Severin, W. Ensinger, R. Neumann, C. Trautmann, G. Walter, I. Alig, S. Dudkin,