J. Mater. Sci. Technol. ›› 2022, Vol. 129: 173-180.DOI: 10.1016/j.jmst.2022.04.041

• Research Article • Previous Articles     Next Articles

Pressureless crystallization of glass toward scintillating composite with high crystallinity for radiation detection

Junzhou Tanga,b, Shichao Lva,b, Ziyu Lina,b, Guanxin Dua,b, Manyun Tanga,b, Xu Fenga,b, Junpeng Guoc, Xiang Lid, Junfeng Chend, Lei Weie, Jianrong Qiuf, Shifeng Zhoua,b,*()   

  1. aState Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
    bGuangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices, Guangzhou 510640, China
    cShanghai Hapstar M&E Equipment Co., Ltd., Shanghai 201109, China
    dShanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, China
    eSchool of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
    fCollege of Optical Science and Engineering, State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China
  • Received:2022-02-04 Revised:2022-04-02 Accepted:2022-04-10 Published:2022-05-28 Online:2022-05-28
  • Contact: Shifeng Zhou
  • About author:* State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China. E-mail address: zhoushifeng@scut.edu.cn (S. Zhou).

Abstract:

The construction of scintillating ceramics is of great technological importance for various fundamental applications, including medical diagnostic, security inspection, resource exploration and particle physics. The chief challenge is the facile and scalable synthesis of scintillating ceramics with the desirable combination of pore-free, reliable mechanical properties and excellent scintillating performance. Here we present a pressureless glass crystallization strategy for the construction of scintillating composite with high crystallinity. The fabricated scintillating composites are featured by small optical turbidity, excellent mechanical properties, and efficient scintillating luminescence with the scintillating light yield of 15,000 pH/MeV and about 2.46 times higher than that of the commercial BGO single crystal. Moreover, the scintillating composite derived radiation detector device is successfully elaborated. The practical application for monitoring gamma ray is demonstrated and the precision of the device is less than that of the tolerable deviation of 30%. Our results suggest an innovative approach for expanding the category of scintillating material candidates, pointing to practical application in the field of radiation detection.

Key words: Glass, Glass crystallization, Optical materials, Composite, Luminescence