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<p>Stationary computed tomography (CT) is an innovative CT technology that significantly boosts scanning speed and reduces motion artifacts by utilizing sequentially activated distributed X-ray sources instead of the conventional helical scanning with a single source. This paper presents an S-band multi-beam accelerating structure designed to serve as a distributed megavolt-peak (MVp)-level X-ray source for industrial stationary CT applications. This structure comprises seven parallel-distributed accelerating cavities and six coupling cavities operating in the <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\pi\)</EquationSource> <EquationSource Format="MATHML"><math> <mi>π</mi> </math></EquationSource> </InlineEquation>/2 standing-wave mode with a center frequency of 2998 MHz. Each cavity can generate electron beams with an average energy of 0.76 MeV and peak current of 105 mA, with a total power input of 2.1 MW according to beam dynamics simulation. This novel structure can fill a critical gap in industrial stationary CT by offering an urgently required distributed MVp-level X-ray source that is compact and cost-effective.</p>

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Design, fabrication, and test of an S-band multi-beam accelerating structure for industrial stationary CT application

  • 期刊论文

  • 发表日期：

    2026年7月18日

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  • Fo-Cheng Liu,
  • Liang Zhang,
  • Jia-Ru Shi,
  • Hao Wang,
  • Hao Zha,
  • Yi-Nuo Zhu,
  • Qiang Gao,
  • Xiao-Tong Zhang,
  • Yao-Hong Liu,
  • Huai-Bi Chen

摘要

Stationary computed tomography (CT) is an innovative CT technology that significantly boosts scanning speed and reduces motion artifacts by utilizing sequentially activated distributed X-ray sources instead of the conventional helical scanning with a single source. This paper presents an S-band multi-beam accelerating structure designed to serve as a distributed megavolt-peak (MVp)-level X-ray source for industrial stationary CT applications. This structure comprises seven parallel-distributed accelerating cavities and six coupling cavities operating in the \(\pi\) π /2 standing-wave mode with a center frequency of 2998 MHz. Each cavity can generate electron beams with an average energy of 0.76 MeV and peak current of 105 mA, with a total power input of 2.1 MW according to beam dynamics simulation. This novel structure can fill a critical gap in industrial stationary CT by offering an urgently required distributed MVp-level X-ray source that is compact and cost-effective.