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The results of Monte Carlo calculations on the relative number of spatially overlapping holes W over in track membranes, depending on porosity P for possible angular distributions of ion incidence (pore orientation) are presented. The values of the relative number of overlapping pores in the bulk, W m (m = 2, 3, ..., 10), were calculated and the relative hole overlap areas were determined. The choice of the most effective angular distributions for the manufacture of track membranes is discussed.  相似文献   
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The structure of latent tracks in polyethylene terephthalate is studied using chemical etching combined with a conductometric technique. Geometrical parameters of the latent tracks for the range of the electronic energy loss (dE/dx) between 3 to 24 keV/nm are estimated. The dependence of the track core and track halo size on the energy loss is analyzed.  相似文献   
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