Synthesis and Characterization of LiAlO<sub>2</sub> for Passive Dosimetry
- 1 Institute for Nuclear Science and Technology, Vietnam Atomic Energy Institute, Hanoi, Vietnam
- 2 Institute for Nuclear Science and Technology, Vietnam Atomic Energy Institute, Hanoi, Vietnam
- 3 Institute for Nuclear Science and Technology, Vietnam Atomic Energy Institute, Hanoi, Vietnam
Abstract
Lithium aluminate (LiAlO 2 ) powder was synthesized by sol-gel with EDTA method. The resultant powders were characterized by X-Ray Diffraction (XRD) and Scanning Electronic Microscopy (SEM) techniques. In addition, several thermoluminescence properties of synthesized LiAlO 2 powder were reported. The results from X-ray diffraction (XRD), the powder prepared by sol-gel with EDTA method showed pure γ -phase when it was calcined at >900°C. Scanning electron microscopy (SEM) results show that the size of the lithium aluminate particles depended strongly on calcination temperature. The linearity is observed of synthesized LiAlO 2 powder by sol-gel with EDTA with regression coefficient (R 2 ) is 0.9971.
- Singh, J., Manam, J. and Singh, F. (2017) Thermoluminescence Studies of Solid-State Reaction Derived and γ-Irradiated SrGd 2 O 4 : Eu 3+ Phosphor. Materials Research Bulletin, 93, 318-324. https://doi.org/10.1016/j.materresbull.2017.05.014
- Bedyal, A.K., Kumar, V., Ntwaeaborwa, O.M. and Swart, H.C. (2017) Investigation of Thermoluminescence Response and Trapping Parameters of 120 MeV Ag 9+ and γ-Ray Exposed NaSrBO 3 :Dy 3+ Phosphor for Dosimetry. Journal of Alloys and Compounds, 691, 919-928. https://doi.org/10.1016/j.jallcom.2016.09.002
- Antonio, P.L., Gronchi, C.C., Oliveira, R.A., Khoury, H.J. and Caldas, L.V. (2016) TL and OSL Dosimetric Properties of Opal Gemstone for Gamma Radiation Dosimetry. Radiation Measurements, 90, 219-223. https://doi.org/10.1016/j.radmeas.2015.11.005
- Kinoshita, K., Sim, J.W. and Ackerman, J.P. (1978) Preparation and Characterization of Lithium Aluminate. Materials Research Bulletin, 13, 445-455. https://doi.org/10.1016/0025-5408(78)90152-6
- Alvani, C., Casadio, S., Lorenzini, L. and Baugh, G. (1986) Fabrication of Porous LiAlO 2 Ceramic Breeder Material. Fusion Technology, 10, 106-112. https://doi.org/10.13182/FST86-A24751
- Mittani, J.C., Prokic, M. and Yukihara, E.G. (2008) Optically Stimulated Luminescence and Thermoluminescence of Terbium-Activated Silicates and Aluminates. Radiation Measurements, 43, 323-326. https://doi.org/10.1016/j.radmeas.2007.10.004
- Dhabekar, B., Alagu Raja, E., Menon, S., Gundu Rao, T.K., Kher, R.K. and Bhatt, B.C. (2008) ESR, PL and TL studies of LiAlO 2 : Mn/Ce Phosphor. Radiation Measurements, 43, 291-294. https://doi.org/10.1016/j.radmeas.2007.11.054
- Teng, H., Zhou, S., Lin, H., Jia, T., Hou, X. and Wang, J. (2010) Growth and Characterization of High-Quality Mn-Doped LiAlO 2 Single Crystal. Chinese Optics Letters, 8, 414-417. https://doi.org/10.3788/COL20100804.0414
- Kwon, S.-W. and Park, S.-B. (1997) Effect of Precursors on the Preparation of Lithium Aluminate. Journal of Nuclear Materials, 246, 131-138. https://doi.org/10.1016/S0022-3115(97)00148-7
- Lee, J.I., Pradhan, A.S., Kim, J.L., Chang, I., Kim, B.H. and Chung, K.S. (2012) Preliminary Study on Development and Characterization of High Sensitivity LiAlO 2 Optically Stimulated Luminescence Material. Radiation Measurements, 47, 837-840. https://doi.org/10.1016/j.radmeas.2012.01.007
- Lee, J.I., Pradhan, A.S., Kim, J.L., Chang, I., Kim, B.H. and Chung, K.S. (2013) Characteristics of LiAlO 2 —Radioluminescence and Optically Stimulated Luminescence. Radiation Measurements, 56, 217-222. https://doi.org/10.1016/j.radmeas.2013.01.066