Investigation of heavy ion tracks in polymers by transmission electron microscopy
نویسندگان
چکیده
Bulk samples and thin sections of polyethylene terephthalate (PET) and polyimide (PI) were irradiated with Se and Pb ions of 11.4 MeV/u at the UNILAC. The creation of latent tracks and related structural changes were studied by means of transmission electron microscopy (TEM) using a 200 kV Philips CM200-UTW microscope (point resolution 0.17 nm). Due to relatively similar electron densities within organic polymers, staining helps to increase the imaging contrast and improve the radiation resistivity under the electron beam.
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