OPTIMIZATION OF DOPANTS IN CR-39

CR-39 plastic nuclear track detectors have been cast with noadditive a nd with Methyl methacrylate, Diallyl phthalate, Dibutyl phthalate and Di-(2-ethylhexyl) phthalate. After irradiated with 5.15 MeV alpha part icles, the responses of the detectors were found to be significantly d ifferent for each kind of additive. The performance was reported of a new CR-39(DAP) solid state nuclear track, detector, the CSR. The sheet s with 1 % addition of Diallyl phthalate of CR-39 monomer were more se nsitive than those of pure CR-39.