Physical changes associated with gamma doses of PM-555 solid-state nuclear track detector

Gamma irradiation induced chemical and structural modifications in PM-355 polymeric nuclear track detector film

“…Very few attempts have been carried out in the study of optical, thermal, chemical and structural properties of PM-355 SSNTDs as a function of radiation doses [19,20]. Moreover, to be best of our knowledge a few reports have been carried out on the use of gamma radiation for the modifications of optical and structural properties of PM-355 SSNTDs [21]. Interestingly, as for many other polymeric nuclear track detectors (viz.…”

Impedance spectroscopy of gamma irradiated PM-355

“…Irradiation of track detectors with ionizing radiation has been found to cause surface damage and degradation of the amorphous nature of the polymer, converting it into an easily etchable material. Molecular chain scission, intermolecular cross-linking, rearrangement of bonding, and formation of carbon-rich clusters are some structural deformations in the irradiated polymer that lead to changes in the optical and dielectric properties of the material (Mujahid et al, 2004;Nouh, 2004).…”

The Optical and Chemical Response of Thermal Neutron-Irradiated CR-39 Polymeric Track Detector after Annealing

“…On annealing at 150ºC, thermal neutron-irradiated samples show a decrease in peak corresponding to -OH stretching or symmetric vibrations of water molecule. 15 3.31 ± 0.09 0.46 ± 0.01~6 10 17 2.85 ± 0.13 0.92 ± 0.04~6 This can be attributed to the evolution of adsorbed water at the surface on annealing. A band at 1580 cm −1 indicates the presence of -C=C-stretching for un-polymerized monomers remaining in the samples after irradiation.…”

“…These rays do not themselves make tracks but can have significant and sometimes profound effects on the properties of the track recorders [11] . Although most recent works have been limited to energetic heavy ions, low energy ions and fast electrons, and some authors have also reported work on effects of gamma irradiation on polymers [12][13][14][15][16][17][18] , yet a little attention has been made to study the effects of annealing on thermal neutron-irradiated polymers. Complex defects may develop during ion-beam interactions with polymer; annealing may cause anti-site defects or clusters, and nearly every property of the original polymer can be modified [19] .…”