Scholarlink

<b>Purpose</b> <p>To enhance the reliability and availability of superconducting radio-frequency (SRF) linear accelerators (LINACs), this study proposes and validates a novel global compensation-rematch method for fault recovery.</p> <b>Methods</b> <p>The proposed method prioritizes the smooth evolution of the longitudinal phase advance per meter as the core physical constraint. By enforcing this constraint and redistributing the lost accelerating voltage among operational cavities, the method aims to simultaneously restore the nominal beam energy and preserve its quality. Its effectiveness is demonstrated through comprehensive beam dynamics studies and beam experiments on a low-energy, high-intensity proton LINAC, including multiparticle simulations using TraceWin software.</p> <b>Results</b> <p>Multiparticle simulations indicate that the normalized root-mean-square emittance growth is negligible after compensating for a 50% field reduction in key spoke cavities. Experimental verification under limited hardware conditions successfully restored the beam energy to its nominal value without any observed loss of beam quality.</p> <b>Conclusion</b> <p>A physically transparent and robust fault recovery framework is presented, validated in a real machine environment. It offers significant potential for enhancing the reliability and availability of high-power hadron LINACs.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Compensation-rematch studies for superconducting cavities of Chinese accelerator-driven subcritical systems injector-I

  • 期刊论文

  • 发表日期：

    2026年4月8日

查看全文
  • Xinyuan Feng,
  • Jun Peng,
  • Fang Yan,
  • Sheng Wang,
  • Shengjin Liu,
  • Yongchuan Xiao,
  • Zhexin Xie,
  • Zhencheng Mu,
  • Fang Li,
  • Ruiyang Qiu,
  • Peng Zhu,
  • Hui Liao,
  • Yuliang Zhang,
  • Cong Zhang,
  • Qiyu Kong,
  • Huachang Liu,
  • Wenqin Zhang,
  • Changdong Deng,
  • Shuai Li,
  • Shunning Liu

摘要

Purpose

To enhance the reliability and availability of superconducting radio-frequency (SRF) linear accelerators (LINACs), this study proposes and validates a novel global compensation-rematch method for fault recovery.

Methods

The proposed method prioritizes the smooth evolution of the longitudinal phase advance per meter as the core physical constraint. By enforcing this constraint and redistributing the lost accelerating voltage among operational cavities, the method aims to simultaneously restore the nominal beam energy and preserve its quality. Its effectiveness is demonstrated through comprehensive beam dynamics studies and beam experiments on a low-energy, high-intensity proton LINAC, including multiparticle simulations using TraceWin software.

Results

Multiparticle simulations indicate that the normalized root-mean-square emittance growth is negligible after compensating for a 50% field reduction in key spoke cavities. Experimental verification under limited hardware conditions successfully restored the beam energy to its nominal value without any observed loss of beam quality.

Conclusion

A physically transparent and robust fault recovery framework is presented, validated in a real machine environment. It offers significant potential for enhancing the reliability and availability of high-power hadron LINACs.