Effect of particle fluence on track diameter and response of electrochemically etched SSNTD

Track diameter as a function of particle fluence is given for electrochemically etched fission fragment tracks. It is shown that high particle fluences decrease the developability of electrochemically etched tracks. Therefore the dependence of sensitivity on particle fluence was studied for polyester and poly(allyl diglycol carbonate). Continuously decreasing sensitivity was found even in the case when track overlap does not occur. An idea for correct interpretation of the response is suggested. (author)