Journal of Radiation Research and Radiation Proces ›› 2016, Vol. 34 ›› Issue (6): 60701-60701.doi: 10.11889/j.1000-3436.2016.rrj.34.060701

• RADIATION INTERDISCIPLINARY RESEARCH • Previous Articles     Next Articles

Preparation and thermoluminescence properties of a novel CaF2: Gd nanomaterials

ZHANG Zequn, HU Xiaodan, ZHANG Wei, LIU Guocai, YU Shuyue, ZHANG Haiqian   

  1. Department of Nuclear Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
  • Received:2016-09-12 Revised:2016-10-30 Online:2016-12-20 Published:2016-12-08
  • Supported by:

    Supported by National Nature Science Foundation of China (11575086), Nature Science Foundation of Jiangsu Province (BK20131355), and A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions

Abstract:

Gadolinium doped calcium fluoride (CaF2:Gd) nanoparticles were prepared by the hytrothermal method. X-ray diffraction (XRD), Scanning electron microscope (SEM), and Energy dispersive spectrometer (EDS) were used to characterize the nanomaterials and obtained the 44 nm average particle size, the cubic crystal and element compose (Ca, F, Gd). The combination of Tm-Tstop and CGCD (Computerized glow curves de-convolved) were used and four overlapping peaks were found in glow curve at 126, 148, 174 and 286℃. And the kinetic parameters of the synthesized nanomaterials were also obtained. The optimal Gd mole percent was found at 0.6%. A good linear dose response was shown from 1 Gy to 10 000 Gy. The fading and repeatability of the nanoparticles were also excellent. It can be concluded that the CaF2:Gd nanomaterials could be employed to measure the high dose gamma radiation.

Key words: Thermoluminescence, Hytrothermal, Gadolinium doped calcium fluoride, Nanomaterials

CLC Number: 

  • TL818+.4