1Department of Physics, Govt. Vishwanath Yadav Tamaskar Post Graduate Autonomous College, Durg-491 001 (Chhatisgarh)
2Display Materials Laboratory, Applied Physics Department, Faculty of Technology and Engineering, M.S. University of Baroda, Baroda-390 001 (Gujarat)
*E-mail: jsvikasdubey@gmail.com
Online published on 5 August, 2015.
Samples of high purity limestone powder were annealed in air atmosphere in the temperature range 200, 400, 600 and 800°C and in atmospheric pressure. The samples were subsequently irradiated and the effect of the annealing temperature on the thermoluminescence (TL) of the samples was studied. The samples were irradiated with Sr-90 beta source giving a dose of 10Gy and the heating rate used for TL measurements are 6.66°C/sec was described. The samples displayed good TL peaks at 123, 128, 128 and 130°C respectively and the corresponding activation energy (E) values and frequency factor are calculated. Samples were characterized by X-ray diffraction.
Effect of A.Q, thermoluminescence, beta irradiated limestone, kinetic parameter
