Kinetic and TL glow curve analysis of UV-, β- and γ-irradiated natural limestone collected from Chunkatta mines. Issue 11 (2nd December 2017)

• Record Type: Journal Article
• Authors: Dubey, Vikas; Kaur, Jagjeet; Dubey, Neha; Pandey, Manoj Kumar; Suryanarayana, N. S.; Murthy, K. V. R.
• Is Part Of: Radiation effects and defects in solids. Volume 172:Issue 11/12(2017)
• Page Start: 866
• Page End: 877
• Publication Date: 2017-12-02
• Subjects: UV- -- β- and γ-irradiated limestone sample -- trap depth -- kinetic parameters; Radiation chemistry -- Periodicals; Crystals -- Defects -- Periodicals; Crystal lattices -- Periodicals; 530.416
• DOI: 10.1080/10420150.2017.1417410
• Languages: English
• ISSNs: 1042-0150

Abstract

ABSTRACT: Herein the manuscript reports kinetics and Thermoluminescence (TL) glow curve analysis of UV-, β- and γ-irradiated natural limestone samples collected from Chunkatta mines of Chhattisgarh basin. The collected samples were annealed at 100°C for 1 h for preheat treatment before irradiation after that the samples were irradiated by UV, β and γ, respectively. After irradiation the 1 mg weigh samples perform for TL glow curve analysis. Collected limestone was characterized by X-ray diffraction analysis technique and crystallite size was calculated using Scherer's formula. UV-irradiated sample shows the high-temperature peak centered at 250°C, for β-irradiated sample showed well resolved broad TL glow curve at 404 K which is fitted using computerized glow curve deconvolution (CGCD) technique. Similarly, for γ-irradiation the well resolved three distinct peaks at 209, 288 and 388°C showed the formation of deep trapping for γ-irradiation. Dose rate effect for UV- and γ-irradiation reported in details as well as the trap formation were described by trap depth model. Kinetic parameters for UV-, β- and γ-irradiation were calculated using peak shape method by CGCD technique. The study was determined the trap level formation and application related to TL dose response in collected limestone sample.