A method to determine the opening process for pores of latent ion tracks in polymer using electrolytic etching

Nanofluidic Pulser Based on Polymer Conical Nanopores

“…In addition, we develop a new theoretical model on the migration of surface charge screened region to explain the process of ionic current fluctuation, for which the tendency of ion current fits well with the experimental data. 20,21 Briefly, the foils were irradiated first with single swift heavy ions and subsequently processed with an asymmetric chemical etching method. The details of conical nanopore preparation are available in Supporting Information.…”

Determination of the proton latent track dimensions in CR-39 detectors using small angle neutron scattering

“…The most recent results available concerning the experimental measurement of the latent track diameters in the CR-39 are those published by Yasuda and Yamamoto team using the AFM (Yasuda et al, 2001;Yamauchi et al, 2000), by the Yamauchi team, which in addition to the AFM, they used UV-visible spectroscopy technique (Yamauchi et al, 2003) and by Oganessian team using a sensitive electrolytic etching and electron scanning microscopy (Oganessian et al, 2003(Oganessian et al, , 2005.…”

“…In the last decade, considerable effort has been dedicated to experimental studies of latent tracks in different organic materials in order to determine its chemical structure and to obtain more information about the track morphology and the dependence of the track sizes on the projectile and the target parameters (Apel et al, 1999;Barillon et al, 1999;Lounis-Mokrani et al, 2003;Yamauchi et al, 2003;Oganessian et al, 2003). In contrast to the length of a latent track which is generally considered constant and equal to the range of the projectile in the target, the radial dimension results reported so far in literature for different organic materials and ions species have been found very variable.…”

“…In contrast to the length of a latent track which is generally considered constant and equal to the range of the projectile in the target, the radial dimension results reported so far in literature for different organic materials and ions species have been found very variable. For radial dimension investigations different methods can be used as for example 'scavanger technique' (Decossas et al, 1984) small angle X-ray scattering (Dartyge et al, 1981), small angle neutron scattering (SANS) (Albrecht et al, 1982;Schaupert, 1986); conductometric methods (Apel et al, 1999;Oganessian et al, 2003); electron microscopy (Bohus and Greaves, 1989); atomic force microscopy (AFC) (Yasuda et al, 2001;Yamauchi et al, 2003), infrared spectroscopy (Barillon, 2005), UV spectrophotometry (Yamauchi et al, 2000(Yamauchi et al, , 2003. Moreover, many theoretical studies have been also undertaken where radial effects have been described by delta ray theory, restricted energy loss theory (Benton, 1970) or radial dose distribution (Katz and Kobetich, 1968;Waligorski et al, 1986).…”

New Generation Fuel Cell Membrane Using Swift Heavy Ions

“…SHI irradiation on a polymer film creates latent tracks and if the energy of SHI and film thickness is so chosen (through SRIM calculation) that charged ions are not implanted in the film rather it passes through the film . Hence, the latent tracks made by SHI are throughout the thickness of polymer film which are predominantly amorphous and bear considerable amount of free radicals as discussed above.…”