Abstract
Abstract Track etch rate characteristics of makrofol polycarbonate plastic detector exposed to 54 Xe 129 heavy ions of 7.5 MeV/n energy at GSI, Darmstadt have been investigated. It is observed that the bulk etching rate, V b , as well as track etching rate, V t , by keeping the concentration of the etchant (6.25N NaOH) constant, increase with the increase of etching temperature. Complete etching times have been found to be 32, 15, 9 minutes at etching temperatures of 50°C, 60°C and 65°C, respectively. The activation energies for bulk etching and track etching are determined to be 0.9 eV and 1.38 eV, respectively. The etching efficiency (η) has been found to be independent of the etching temperature. The threshold value of energy loss rate of makrofol polycarbonate has been determined from a semi-empirical relation between V t , V b and REL, and has been found to be 4.29 MeV mg -1 cm -2 . The suitability of single sheet charged particle identification method has been examined. Using this method, makrofol detector has been found to quite suitable for identifying low energy Xe ions.
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Schedule a callMore From: International Journal of Radiation Applications and Instrumentation. Part D. Nuclear Tracks and Radiation Measurements
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