Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2019, Vol. 30 ›› Issue (9): 137 doi: 10.1007/s41365-019-0661-8


Evaluation of CdZnTe spectrometer performance in measuring energy spectra during interventional radiology procedure

Lin Chai,1 Lian Chen,2 Cui-Ping Yang,1 Dong-Dong Zhou,1 Meng-Meng Yang,1 Wei-Wei Qu,1, 3,  Gao-Long Zhang,4, 5,  Da-Qian Hei,6 Shou-Ping Xu,7 and Xin-Jian Chen1   

  1. 1State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China
    2State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
    3Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Suzhou 215123, China
    4School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
    5Beijing Advanced Innovation Center for Big Data-based Precision Medicine, Beihang University, Beijing, 100083, China
    6College of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
    7Department of Radiation Oncology, PLA General Hospital, Beijing 100853, China
  • Received:2019-02-13 Revised:2019-06-11 Accepted:2019-06-22
  • Contact: Wei-Wei Qu
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (No. 11705123), Natural Science Foundation of Jiangsu Province (No. BK20160306), China Postdoctoral Science Foundation (No. 2016M591911), and the Project of the State Key Laboratory of Radiation Medicine and Protection, Soochow University (No. GZN1201801).
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Lin Chai, Lian Chen, Cui-Ping Yang, Dong-Dong Zhou, Meng-Meng Yang, Wei-Wei Qu, Gao-Long Zhang, Da-Qian Hei, Shou-Ping Xu, Xin-Jian Chen. Evaluation of CdZnTe spectrometer performance in measuring energy spectra during interventional radiology procedure.Nuclear Science and Techniques, 2019, 30(9): 137     doi: 10.1007/s41365-019-0661-8

Abstract: Interventional radiology has been beneficial for patients for over 30 years of age with the combination of diagnostic and therapeutic methods. The radiation affecting occupationally exposed workers should be evaluated by means of the energy spectra and flux of X-rays in the treatment room. The present study aims to obtain the energy spectra of interventional procedures and study the capability of some detectors to evaluate the dose in interventional procedures. These measurements were performed by silicon-drift, CdTe, and CdZnTe detectors. The energy spectra were corrected by the energy-response curve of each detector. The energy-response curves of silicon-drift and CdTe detectors provided by the manufacturers specification were used. The energy response of the CdZnTe detector was measured by 133Ba and 152Eu sources. The experimental data were compared with the simulation results, and their perfect agreement provides a way to correct the energy or dose response, which can be used for the personal dosimeter developed by our group. Moreover, the measured energy spectra can be used in individual radiation protection. The present study shows that the CdZnTe detector is a good candidate detector in interventional procedures.

Key words: Interventional radiology procedures, energy-response curve, energy spectrum, radiation protection