Experimental verification of the equations governing the electrical breakdown of polymeric dielectrics during electrochemical etching of tracks

In view of the growing use of electrochemical etching (ECE) in many fields, it is important to understand the underlying mechanisms and the theory governing the production of the ECE spots in polymeric track detectors. These spots results from “treeing”, i.e. the dielectric breakdown at the tip of e...

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Bibliographic Details
Published in:International journal of radiation applications and instrumentation. Part D, Nuclear tracks and radiation measurements Nuclear tracks and radiation measurements, 1988, Vol.15 (1), p.295-299
Main Authors: Karamdoust, N.A., Durrani, S.A.
Format: Article
Language:English
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Summary:In view of the growing use of electrochemical etching (ECE) in many fields, it is important to understand the underlying mechanisms and the theory governing the production of the ECE spots in polymeric track detectors. These spots results from “treeing”, i.e. the dielectric breakdown at the tip of etched tracks under an applied (usually) alternating electric field. Track geometry plays an important role in the evolution of this phenomenon. We have carried out a series of systematic experiments on CR-39 detectors irradiated with 5.49 MeV alpha particles and 15.36 MeV/amu 62Ni ions. The validity of Mason's 1 and Smythe's 2 equations for evaluating the electric field strength at the track tips has been investigated in the case of both long and short tracks.
ISSN:1359-0189
1878-1691
DOI:10.1016/1359-0189(88)90152-5