Study of Thermoluminescence Kinetics of Dy Doped Limgbo3 Phosphor

Authors

  • Praveen K.Mishra  Department of Radiotherapy, G.R.Medical College, Gwalior, Madhya Pradesh, India
  • Vibha Chopra  P.G. Department of Physics & Electronics, DAV College, Amritsar, Punjab, India
  • Govind B.Nair  Department of Physics, R.T.M .Nagpur University, Nagpur, Maharashtra, India
  • Surendra P.Mishra  Department of Radiotherapy, G.R.Medical College, Gwalior, Madhya Pradesh, India
  • R.K.Paliwal  Department of Physics, Mewar University, Gangrar Chittorgarh, India
  • S.J. Dhoble  Department of Physics, R.T.M .Nagpur University, Nagpur, Maharashtra, India

Keywords:

LiMgBO3; thermoluminescence; peak shape method; kinetic parameters

Abstract

In this study Dy doped LiMgBO3:xDy3+ phosphor has been synthesized by conventional solid state reaction method for different concentrations of Dy (x = 0, 0.0005, 0.001, 0.002, 0.005, 0.01 and 0.02). The synthesized phosphor was characterized for its TL properties that included TL glow curves and TL response for different concentrations of Dy after exposure of 700 Gy gamma rays. Further the kinetic parameters: Activation energy (E) and Order of kinetics (b), were determined using Chen’s Peak Shape method and theoretical curves were generated using GCD glow fit. Good match of kinetic parameters have been observed between two methods. Simple glow curve structure and good TL response can make this phosphor a better candidate for future work on radiation dosimetry.

References

  1. Bajaj N S, Omanwar S K. (2014). Advances in synthesis and characterization of LiMgBO3: Dy3+. OPTIK: International journal for light and electronics. 125: 4077-4080.
  2. Chen, R. and Winer, S. A. A. (1970). Effects of various heating rates on glow curves. Journal of Applied Physics 41: 5227-32.
  3. Chopra V., Singh Lakhwant, Lochab S.P. (2013). Thermoluminescence characteristics of gamma irradiated Li2B4O7:Cu nanophosphor. NIM A.  717:  63-68.
  4. Kumar, V., Swart, H.C., Ntwaeaborwa, O.M., Kumar, R., Lochab, S.P., Mishra,V. and Singh,N.  (2009). Thermoluminescence response of CaS:Bi3+ nanophosphor exposed to 200 MeV Ag+15 ion beam. Optical Materials 32 164-168.
  5. Lochab, S. P., Pandey, A., Sahare, P. D., Chauhan, R. S., Salah, N. and Ranjan, R. (2007). Nanocrystalline MgB4O7: Dy for high dose measurement of gamma radiation. Physics Status Solidi (a) 204: 2416-25.
  6. Norrestam R.. The crystal structure of monoclinic LiMgBO3.  Zeitschrift für Kristallographie - Crystalline Materials 187: (1989) 1-2
  7. Puchalska, M. and Bilski, P. (2006). Glow Fit- A new tool for thermoluminescence glow curve deconvulation. Radiation Measurements 41: 659-64.
  8. Parsad K Hari, Ratnakar A., kumar Aashutosh, Venkateswarlu M., Satyanarayana N.(2016). Structural and electrical conductivity studies of LiMgBO3 nanoparticles prepared by Pechini process. Materials today: Proceedings 3 B: 4064-4069.
  9. Parsad K Hari, subramaniam S, Sairam TN, Amarendra G, Srinadhu E S, Satyanarayana N. (2017). Structural, electrical and dielectric properties of nanocrystalline LiMgBO3 particles synthesized by Pechini process. J. Alloys and Compounds 718:  459-470.
  10. Singh Lakhwant, Chopra V.,Lochab S.P. (2011).  Synthesis and characterization of thermoluminescent Li2B4O7 nanophosphor. J. of Luminescence 131: 1177-83.

International Journal of Scientific Research in Science and Technology

Downloads

Published

2018-01-30

Issue

Volume 4, Issue 1, January-February-2018

Section

Research Articles

License

Copyright (c) IJSRST

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
Praveen K.Mishra, Vibha Chopra, Govind B.Nair, Surendra P.Mishra, R.K.Paliwal, S.J. Dhoble, " Study of Thermoluminescence Kinetics of Dy Doped Limgbo3 Phosphor, International Journal of Scientific Research in Science and Technology(IJSRST), Online ISSN : 2395-602X, Print ISSN : 2395-6011, Volume 4, Issue 1, pp.83-86 , January-February-2018.