The response of a plastic detector to an incoming charged particle is given by the ratio of track etch rate υt to bulk etch rate υg along its path. Although the accurate determination of υt offers no difficulty as cone length can be comfortably measured, there seems to be a certain ambiguity as how to measure υg. Several LEXAN and TUFFAK polycarbonate plates have been exposed to normally incident Californium-252 fission fragments, etched in a stirred aqueous NaOH solution saturated with etch products and with a 0.05% of Dowfax sufactant, for different etching times, concentrations and temperatures. We have used three methods to measure υg and we obtain consistent results in agreement with those published in the literature. Surface quality and, consequently, ellipses neatness, are far superior in TUFFAK than in LEXAN. © 1989.
|Journal||International Journal of Radiation Applications and Instrumentation. Part|
|Publication status||Published - 1 Jan 1988|