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 (6): 98 doi: 10.1007/s41365-019-0618-y


Determining the effect of relative size of sensor on calibration accuracy of TEM cells

Yun-Sheng Jiang1,2 • Cui Meng1,2 • Han-Bing Jin1,2 • Ping Wu1,2 • Zhi-Qian Xu1,2 • Liu-Hong Huang1,2   

  1. 1 Key Laboratory of Particle and Radiation Imaging, Ministry of Education, Beijing 100084, China
    2 Department of Engineering Physics, Tsinghua University, Beijing 100084, China
  • Received:2018-09-26 Revised:2019-02-26 Accepted:2019-03-01
  • Contact: Cui Meng
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Yun-Sheng Jiang, Cui Meng, Han-Bing Jin, Ping Wu, Zhi-Qian Xu, Liu-Hong Huang. Determining the effect of relative size of sensor on calibration accuracy of TEM cells.Nuclear Science and Techniques, 2019, 30(6): 98     doi: 10.1007/s41365-019-0618-y

Abstract: The time-domain calibration coefficient of a D-Dot sensor should be identical across various transverse electromagnetic (TEM) cells to comply with the IEEE Std 1309. However, in our previous calibration experiments, poor consistency was observed. The size of D-Dot sensors relative to TEM cells is considered the main reason for this poor consistency. Therefore, this study aims at determining the calibration coefficient of a D-Dot sensor. We calculate the theoretical coefficient as a reference. Practical calibration experiments involve the processing of TEM cells with three different sizes. To observe the response more clearly, corresponding models are constructed and numerical simulations are performed. The numerical simulations and experimental calibration are in good agreement. To determine the calibration accuracy, we quantify the accuracy using the relative error of the calibration coefficient. By comparing the coefficients obtained, it can be concluded that the perturbation error is about 15% when the relative size is over 1/3. Further, the relative size should be less than 1/5 to obtain a relative error below 10%.

Key words: D-Dot, Electromagnetic sensor, Time-domain calibration, Accuracy, Numerical simulation