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The polymer blends of Polymethyl Methacrylate/Polystyrene (PS/PMMA) have been irradiated with 28 Si ions of 60 MeV. The percentage transmission of light in the wavelength region of 490 nm has been studied with varying concentration of PS in blend films before and after irradiation. The transmission of light increased on irradiation which may be attributed to the chain scissions of PMMA.
The electret state of a polymer arises from the induced polarization owing to the frozen in phenomenon of electric charges. The study of electret nature using thermally stimulated discharge current (TSDC) technique reveals the nature of various relaxation processes in a polymer. When a polymer is irradiated with high energy ions their dielectric relaxations get affected which can be investigated using...
Pd/p-Si and Pd/n-Si devices were irradiated from 100 MeV gold (7+) ions for varying doses (∼ 10 11 -10 13 ions cm -2 ). The devices were characterized from I-V and C-V studies. It has been found that there is a change of conductivity type i.e. from n to p at a probed depth of ∼ 8 μm which is approximately the stopping range of the gold ions in silicon. A deep...
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