* Department of Physics, University of Veszprem, H-8201, Vezprem, Hungary
? Departement of Chemistry, North-Eastern Hill University, Shillong 793 003, India
? Kernchemie, FB 14, Philipps Universität, D-35032, Marburg, Germany
Abstract:
The bulk etch rate for two types of CR-39 detector was measured as a function of temperature and the activation energies of bulk etching was determined. Experimental values of track etch rate were derived directly from the function of the succesive measured track length vrs. etching time for 209Bi, 129Xe and 20Ne ions.
The maximum etchable length of 13 MeV/u 209Bi and 13.04 MeV/u 129Xe ions have been measured at and below these energies. A comparison of the measured and calculated track length data is presented.