Abstract
Abstract Systematic study of the various aspects of electrochemically amplifying the fission fragment and alpha particle tracks in CR-39 and Makrofol-E has been carried out. Prior to electrochemical etching, one hour etching in 6 N NaOH at 50°C removes the background contribution due to scratches, imperfections, etc. on the surface of the Makrofol-E detector. Ultraviolet treatment results in accelerating the growth of treeing phenomenon observed in the insulators stressed by electric fields during chemical etching. Irradiation of the detectors with γ-rays emanating from the spent fuel elements exhibits a similar type of enhancement. Diametric distribution of the electrochemically produced discharge patterns of alpha particles in CR-39 reveals two peaks. It is possible to discriminate between the 252Cf produced fission fragment and the alpha tracks in CR-39. A mechanism responsible for the treeing phenomenon has been described.
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