Abstract
Ferrotitanium alloy polymer films, prepared by a simple technique of casting aqueous solutions of poly(vinyl alcohol) PVA containing ferrotitanium alloy on a horizontal glass plate, are useful as routine high-dose dosimeters. These flexible plastic film dosimeters have pale yellow color, are bleached when exposed to gamma rays. The chemical composition of alloy was determined by EDX, and structure of alloy was determined by XRD. The response of these dosimeters depends on the concentration of alloy. The energy band gap Eg was calculated and the effect of gamma radiation on its value was determined. The optical absorption spectra showed that the absorption mechanism is an indirect allowed transition which found that energy band gap Eg decreases after irradiation. The response of these films has negligible humidity effects on the range of relative humidity from 0 to 100%. And also, it exhibits good preand post-irradiation stability in dark and light.
Highlights
Many dyed films had been developed and investigated for possibility of their being used to measure absorbed doses in nuclear reactors and doses of X-rays, gamma rays and electron beam [1]-[6]
The chemical composition of alloy was determined by Energy Dispersive X-Ray (EDX), and structure of alloy was determined by X-Ray Diffraction Techniques (XRD)
Post-Irradiation Stability Ferrotitanium alloy/Poly vinyl alcohol (PVA) films containing 1.2 phr of alloy irradiated to a dose of 100 kGy, stored at room temperature 25 ̊C ± 30 ̊C in the laboratory fluorescent light, the absorbance of these films were measured at 352 nm for PVA films at different intervals of time during the storage period of 30 days
Summary
Many dyed films had been developed and investigated for possibility of their being used to measure absorbed doses in nuclear reactors and doses of X-rays, gamma rays and electron beam [1]-[6] All these dyed PVA systems are bleached by irradiation the extent being to which the color change is used for determining the absorbed dose. How to cite this paper: Eid, S., et al (2014) Study the Effect of Gamma Radiation on the Optical Energy Gap of Poly(Vinyl Alcohol) Based Ferrotitanium Alloy Film: Its Possible Use in Radiation Dosimetry. Thin films of PVA colored with different concentrations of the ferrotitanium alloy were investigated to be used as dosimeters for radiation processing, the effect of gamma radiation on optical band gap is studied, and the effects of relative humidity, pre- and post-irradiation stability of these films are investigated. The chemical composition of alloy was determined by EDX, and structure of alloy was determined by XRD
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
