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Purpose <p>This paper presents the Beam Loss Monitoring (BLM) system design for the High-Intensity Heavy-Ion Accelerator Facility (HIAF) – currently integrating a superconducting linear accelerator with a high-energy synchrotron to deliver proton-to-uranium ion beams at MeV/u to GeV/u energies. The system aims to achieve spatial loss mapping, enable precision diagnostics, maintain low activation levels for hands-on maintenance, and prevent equipment damage from high-power beams (e.g., 28-kW continuous-wave beams).</p> Methods <p>The BLM architecture was developed to meet critical integration requirements with the Fast Machine Protection System (MPS), featuring ultra-fast response (≤20 μs), sub-microsecond resolution, broad dynamic range, and radiation-hardened sensitivity; validation combined experimental and simulated approaches for detector calibration, ≤20 μs interlock functionality verification with MPS, availability analysis under fault scenarios, and real-time deployment in a circular accelerator.</p> Results <p>The system demonstrated ≤20 μs beam-abort triggering, full compatibility across all ion species (H–U), energies (MeV/u–GeV/u), and time structures including 28-kW CW beams; radiation-hardened operation maintained stability under extreme conditions, while circular accelerator tests confirmed real-time loss detection capability and compliance with low-activation requirements for maintenance access.</p> Conclusion <p>This work establishes a robust safety-diagnostics framework for next-generation heavy-ion facilities, delivering mission-critical equipment protection against high-power beams and high-fidelity diagnostics for accelerator tuning while resolving fundamental beam-loss monitoring challenges at HIAF-scale installations.</p>

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Development of the beam loss monitor system at HIAF

  • 期刊论文

  • 发表日期：

    2025年6月12日

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  • L. Jing,
  • N. Li,
  • J. X. Wu,
  • H. M. Xie,
  • Y. Zhang,
  • Z. X. Li,
  • X. X. Qiu,
  • K. W. Gu,
  • Y. Wei,
  • J. J. Su,
  • Z. Du,
  • J. J. Ding,
  • T. Liu,
  • G. Y. Zhu

摘要

Purpose

This paper presents the Beam Loss Monitoring (BLM) system design for the High-Intensity Heavy-Ion Accelerator Facility (HIAF) – currently integrating a superconducting linear accelerator with a high-energy synchrotron to deliver proton-to-uranium ion beams at MeV/u to GeV/u energies. The system aims to achieve spatial loss mapping, enable precision diagnostics, maintain low activation levels for hands-on maintenance, and prevent equipment damage from high-power beams (e.g., 28-kW continuous-wave beams).

Methods

The BLM architecture was developed to meet critical integration requirements with the Fast Machine Protection System (MPS), featuring ultra-fast response (≤20 μs), sub-microsecond resolution, broad dynamic range, and radiation-hardened sensitivity; validation combined experimental and simulated approaches for detector calibration, ≤20 μs interlock functionality verification with MPS, availability analysis under fault scenarios, and real-time deployment in a circular accelerator.

Results

The system demonstrated ≤20 μs beam-abort triggering, full compatibility across all ion species (H–U), energies (MeV/u–GeV/u), and time structures including 28-kW CW beams; radiation-hardened operation maintained stability under extreme conditions, while circular accelerator tests confirmed real-time loss detection capability and compliance with low-activation requirements for maintenance access.

Conclusion

This work establishes a robust safety-diagnostics framework for next-generation heavy-ion facilities, delivering mission-critical equipment protection against high-power beams and high-fidelity diagnostics for accelerator tuning while resolving fundamental beam-loss monitoring challenges at HIAF-scale installations.