Abstract
Abstract In our studies of depth-dose profiles in water phantoms irradiated with neutrons used in radiotherapy, where we have employed a system of CR-39, LR 115 and Lexan plastics for recording the various types of charged particles produced in neutron interactions with tissue-equivalent materials, the need arose to establish the registration properties of low-energy heavy ions such as 12C, 14N and 16O in these plastics. Samples of Lexan and CR-39 were therefore exposed to low-energy 12C and 16O ions (0.05 – 0.65 MeV/nucleon) produced by the Harwell Tandem accelerator. We find that it is possible to produce etchable tracks of 12C and 16ions in this energy range in Lexan. We also report the etching characteristics of these tracks in both Lexan and CR-39.
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