A peer-reviewed journal published by K. N. Toosi University of Technology

Document Type : Research Article


1 Department of Physics‎, ‎Faculty of Sciences‎, ‎University of Mohaghegh Ardabili‎, ‎P.O‎. ‎Box 179‎, ‎Ardabil‎, ‎Iran

2 Radiation Application Research School‎, ‎Nuclear Science & Technology Research Institute‎, ‎P.O‎. ‎Box 11365-3486‎, ‎Tehran‎, ‎Iran


In this research work, powder hydroxyapatite samples were synthesized using a solid-state reaction method to investigate the annealing effect. The crystal structure was carried out by XRD system produced data, and the Rietveld method using MAUD software. The samples were irradiated in different radiation absorbed doses up to 1500Gy and their thermoluminescence properties including glow curve, response, fading effect and reproducibility were investigated from dosimetry point of view. The results showed that the annealing temperature significantly affects the crystal structure and thermoluminescence dosimetry response of hydroxyapatite samples, consequently. It was concluded that high temperature annealing process can lead to formation of β-TCP crystal phase during the synthesis of hydroxyapatite. Percentage of this formed phase increases with rising the temperature, and finally leads to increasing of the thermoluminescence response. It was concludded that in the solid state reaction method to increasing the TL response, it is better to use high annealing temperature for the synthesis of hydroxyapatite sample.


  •  HAP samples synthesized via a solid-state reaction method to investigate the annealing e ect on HAP structure.
  • The synthesized samples are a combination of di erent crystal phases and an extera  β-TCP phase.
  • Among all synthesized samples, the TL response of the HAP-900 was higher than others.
  • The linearity, fading e ect and reproducibility of the samples were investigated.


Alvarez, R., Rivera, T., Guzman, J., et al. (2014). Thermoluminescent characteristics of synthetic hydroxyapatite (SHAp). Applied Radiation and Isotopes, 83:192-195.
Azorin, J. (2014). Preparation methods of thermoluminescent materials for dosimetric applications: An overview. Applied Radiation and Isotopes, 83:187-191.
Bhatt, B. C. and Kulkarni, M. (2014). Thermoluminescent phosphors for radiation dosimetry. In Defect and Diccusion Forum, volume 347, pages 179-227. Trans Tech Publ.
Daneshvar, H., Shafaei, M., Manouchehri, F., et al. (2020). Inuence of morphology and chemical processes on thermolu-minescence response of irradiated nanostructured hydroxya-patite. Journal of Luminescence, 219:116906.
Fukuda, Y., Ohtaki, H., Tomita, A., et al. (1993). Thermolu-minescence of hydroxyapatite doped with copper. Radiation Protection Dosimetry, 47(1-4):205-207.
Haverty, D., Tofail, S. A., Stanton, K. T., et al. (2005). Structure and stability of hydroxyapatite: Density functional calculation and Rietveld analysis. Physical Review B, 71(9):094103.
Li, H., Mei, L., Liu, H., et al. (2017). Growth mechanism of surfactant-free size-controlled luminescent hydroxyapatite nanocrystallites. Crystal Growth & Design, 17(5):2809-2815.
Morgan, H., Wilson, R., Elliott, J., et al. (2000). Preparation and characterisation of monoclinic hydroxyapatite and its precipitated carbonate apatite intermediate. Biomaterials, 21(6):617-627.
Perez-Solis, R., Gervacio-Arciniega, J. J., Joseph, B., et al. (2018). Synthesis and characterization of a monoclinic crys-talline phase of hydroxyapatite by synchrotron X-ray powder di_raction and piezoresponse force microscopy. Crystals, 8(12):458.
Pu'ad, N. M., Koshy, P., Abdullah, H., et al. (2019). Syntheses of hydroxyapatite from natural sources. Heliyon, 5(5):e01588.
Sadat-Shojai, M., Khorasani, M.-T., Dinpanah-Khoshdargi, E., et al. (2013). Synthesis methods for nanosized hydroxyapatite with diverse structures. Acta Biomaterialia, 9(8):7591-7621.
Shafaei, M., Ziaie, F., Sardari, D., et al. (2016). Thermoluminescence properties of gamma-irradiated nano-structure hydroxyapatite. Luminescence, 31(1):223-228.
Taghipour, P., Zolfagharpour, F., Daneshvar, H., et al. (2022). Thermoluminescence dose-response of synthesized and doped hydroxyapatite: effect of formed crystal phases. Luminescence.