Effects of high gamma doses on the bulk etch rate of two grade CR-39 materials

Comparison of seasonal and yearly average indoor radon levels using CR-39 detectors

“…It is reported that efficiency of CR-39 detector to full energy a particles from a 252 Cf source and neutrons from an Am-Be source drops by w60% and 87%, respectively. It is also reported that CR-39 exposed to sunlight for more than 60 days were completely fogged and there physical properties were totally destroyed when etched for more than two hours in 6 M NaOH at 70 C. Experiments about the effect of gamma rays on CR-39 etching characteristics have been reported by Brahimi et al (2008). They reported that gamma rays effect is more pronounced when the ethanol concentration increases in the etching solution.…”

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

“…Most of the efforts have been directed towards the effects of radiations on the track etch and bulk etch rates of PM-355 polymeric detectors [6][7][8]. In fact; many authors have used such detectors basing only on approximate calibration data, which presented a dependence of track diameters on energy of selected particles and etching time for the detectors [9][10][11][12][13].…”

Studying some properties of CR-39 detector under the effect of different gamma doses

“…Exposing polymers to high energy radiation appears in a number of physical and chemical changes, both temporary and permanent (Tager, 1978). (Brahimi et al, 2008). Fig.…”