Preparation and Characterization of ZnO and CWO Nanopowders for Radiation Sensing

Document Type : Short Communication and Letter

Authors

1 Faculty of Physics, Semnan University, Semnan, Iran

2 Photonics & Quantum Technologies Research School, Nuclear Science and Technology Research Institute, 11155-3486, Tehran, Iran

3 Applied Science Research Center(ASRC), Kharazmi University, Tehran 31979-37551, Iran

10.22075/ppam.2021.23502.1007

Abstract

Today there is a great request for radiation detection in medical and industrial fields. Zinc oxide (ZnO) and cadmium tungstate(CWO) are two perspective kinds of scintillators due to their useful features such as high density, large Z and efficient scintillation output. In this study ZnO and CWO nanopowders were synthesized by the simple sol-gel method and ZnO and CWO films were prepared by spin coating technique on glass substrates. Samples were characterized by X-ray diffraction, transmission electron microscopy and X-ray induced luminescence measurements. XRD analysis proved that ZnO and CWO Powders with wurtzite and monoclinic wolframite structure respectively were well synthesized. It was observed that particles are approximately 22 and 100 nm in diameter for ZnO and CWO nanopowders respectively The scintillation response of samples was measured using a 241Am alpha source. Compared with ZnO, prepared CWO nanopowders with prominent luminescence properties showed higher radiation sensitivity for applications in the fields of radiation detection.

Keywords



Articles in Press, Accepted Manuscript
Available Online from 05 September 2021
  • Receive Date: 01 June 2021
  • Revise Date: 26 June 2021
  • Accept Date: 04 July 2021