ALPHA-TRACK PROFILE STUDY AND RANGE DETERMINATION IN PADC PLASTIC DETECTORS

An extensive study of alpha particle track profile has been carried ou t in PADC plastic detectors. Track profile geometry and its parameters have been studied. Various values of alpha energies were used, and th e etch rate ratio (V) was measured as a function of the residual range (RR) along the alpha particle track. A mathematical formula between V and RR was established. Also in this work, alpha particle ranges in p lastic foils have been measured at various energies using two methods; namely the track profile technique (TPT) and the over etched track di ameter method. A comparison between the measured ranges and calculated ones is presented, and a good agreement has been found.