典型文献
Design and development of an ACCT for the Shanghai advanced proton therapy facility
文献摘要：
The Shanghai advanced proton therapy facility is a proton cancer treatment device designed and built by the Shanghai Institute of applied physics at the Chinese acad-emy of sciences.The accelerator part comprises a proton linear accelerator(linac)injector and a circular syn-chrotron.An alternating current current transformer(ACCT)is used for non-intercepting beam current mea-surement at the drift tube linac exit.According to the beam characteristics,the ACCT is required to complete real-time beam current and pulse width measurements at currents of 3-30 mA,frequencies of 1-10 Hz,and pulse widths of 40-400 μs.In this paper,we report the design and devel-opment of an ACCT.The designed ACCT was simulated using CST Microwave Studio,and calibrated using an oscilloscope and signal generator.Variations in the output signal of the ACCT were investigated as a function of ceramic gap size,number of coil turns,and resistance.According to the simulation and experimental results,the optimal number of coil turns was found to be 30.In addition,a low-pass filter was adopted to filter the noise introduced during long-distance signal transmission using a coaxial cable with the length of 20 m.The calibration results show that the corresponding rise time of the ACCT is 800 ns with the sensitivity of 8.2 V/A and a droop of less than 1％,meeting the design requirements.
文献关键词：
中图分类号：
作者姓名：
Hong Zhang;Jun-Zhou Li;Rui Hou;Sun An;Shi-Quan Xu;You-Chun Liu;Peng-Jiao Zhang;Jie Song;Yue-Lin Zhang
作者机构：
College of Engineering and Applied Sciences,Nanjing University,Nanjing 210093,China
文献出处：
引用格式：
[1]Hong Zhang;Jun-Zhou Li;Rui Hou;Sun An;Shi-Quan Xu;You-Chun Liu;Peng-Jiao Zhang;Jie Song;Yue-Lin Zhang-.Design and development of an ACCT for the Shanghai advanced proton therapy facility)[J].核技术（英文版）,2022(10):41-52
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acad
B类：
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AB值：
0.54251
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