Gamma-irradiation effects on track etching characteristics of polyester nuclear track detector

Study of fission track registration efficiency of γ-irradiated polyester track detector in solution medium

“…The bulk etch rate is seen to increase with the increase in the gamma dose. This increase in the values of bulk etch rate with the gamma dose may be associated due to the scission of the detector molecules by gamma irradiation [3]. Thus, gamma irradiation has led to degradation of the GPF detector, converting it into an easily etchable material.…”

“…The bulk-etch rates, V b of the detectors were determined by the loss in weight method [3]. In this method, a sample of the detector of known weight and surface area was dipped into the etchant solution, maintained at a fixed temperature in a thermostat, under conditions of stirring for an accurately noted time period.…”

“…The nuclear track detectors are exposed to large doses of neutron, gamma and beta radiations in these studies and therefore, the effects of these radiations on the track registration and developing properties of track detectors are important for wider applications of these detectors. The effects of gamma, neutron, alpha radiations on the track registration and revelation properties of a number of nuclear track detectors have been reported by some workers [1][2][3].…”

Thermal and optical studies on unirradiated and γ-irradiated polyester track detector

“…The modifications caused by radiations in these properties of films lead to their widespread applications in different scientific and technological fields. Recently the effects of these radiations on the etching properties of polyester track detector have been reported from our Laboratory [6,7]. In the present investigation, we report the effects of C -radiation in the dose range of 0-14.5 Mrad on the thermal and optical properties of this detector by TG and UV-visible spectroscopy.…”

“…Lexan (from General Electric Company, USA), a polycarbonate is widely used for the detection of fission fragments and heavy ions by track-etch studies [3][4][5]. Recently, attempts [6,7] have been made to characterize the locally available transparent plastic sheets of polyester films as nuclear track detector in place of imported Lexan polycarbonate track detector for detection of fission fragments. In studies connected with nuclear fission induced by neutrons, the detectors are also exposed to high doses of radiation such as >-and C-rays, neutrons etc.…”