High‐Temperature X‐Ray Imaging with Transparent Ceramics Scintillators

Author:

Wang Ting1ORCID,Hu Song2,Ji Tao3,Zhu Xuanyu1,Zeng Guoqiang4,Huang Ling5,Yakovlev Alexey Nikolaevich6,Qiu Jianbei3,Xu Xuhui3,Yu Xue7

Affiliation:

1. College of Materials and Chemistry & Chemical Engineering Chengdu University of Technology Chengdu 610059 China

2. State Key Laboratory of High‐Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 China

3. Faculty of Materials Science and Engineering Key Laboratory of Advanced Materials of Yunnan Province Kunming University of Science and Technology Kunming 650093 China

4. Nuclear Technology Key Laboratory of Earth Science Chengdu University of Technology Chengdu 610059 China

5. State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of Chemistry Xinjiang University Urumqi 830046 China

6. Т.F. Gorbachev Kuzbass State Technical University 28, Vesennyaya Street Kemerovo 650000 Russia

7. School of Mechanical Engineering Institute for Advanced Materials Chengdu University Chengdu 610106 China

Abstract

AbstractScintillators with high spatial‐resolution and high‐stability are highly desirable for X‐ray imaging applications at unpredictable environments. To challenge state‐of‐the‐art technology, it is necessary to design high thermal stable scintillators with high‐resolution and high light yield. In this work, the zero‐thermal‐quenching Lu3Al5O12:Ce3+ (LuAG: Ce3+) transparent ceramics (TCs) is synthesized with high optical transparency. The thermoluminescence (TL) curves of the as‐obtained TCs demonstrate that the formation of the oxygen vacancies, acting as the trapping centers, can capture the carriers and then contribute to the enhancement of its thermals stability via the thermal compensation effect. The exceptional thermal‐stability of the TCs scintillator endows the monitoring of the dynamic changes of the internal structure of the objective samples without any ghosting effects during heating. In addition, given the ultra‐high uniform, transparency, and fast light decay of the TCs scintillator, the excellent spatial resolution (≈112 lp mm−1) of the X‐ray microscopic imaging is realized. These results undeniably demonstrate that the as‐obtained LuAG: Ce3+ TCs have great prospects for advancement in X‐ray detectors.

Funder

National Natural Science Foundation of China

National Key Research and Development Program of China

State Key Laboratory of Silicate Materials for Architectures

Publisher

Wiley

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