Abstract
Polyallyl diglycol carbonate (PADC) is a well-known Solid State Nuclear Track Detector (SSNTD). We have investigated structural modifications of alpha irradiated PADC at different intervals of times from 2 hours to 10 hours. Structural modifications are investigated by Field Emission
Scanning Electron Microscopic (FESEM) technique. FESEM micrographs reveal that tiny particles are generated at the surface with alpha exposure and with further increasing exposure time the sizes become smaller and smaller ultimately end up in nano sized particles which is confirmed by calculation
from XRD patterns using Scherrer equation. It is believed that generation of nano particles on surface with alpha radiation exposure might be due to chain scission process. Optical study is carried out from absorption and fluorescence spectra. These spectra show variation in peak intensity
and little shift in peak position due to structural modification results from alpha exposure. Optical band gaps at different exposure time are estimated using Tauc's plot.