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<p>The DECY-13 cyclotron, a compact isochronous accelerator developed in Indonesia, is designed to accelerate negative hydrogen ions (H⁻) to produce radioisotopes for nuclear medicine. This study presents the methodology and implementation of a low-energy function assessment for the DECY-13, targeting the achievement of a 10 µA proton beam at 3&#xa0;MeV. The assessment includes tests on subsystem functionality, magnetic field mapping, dee voltage requirements, RF power delivery, and phase synchronization between particle revolution and the RF dee field. A synchronization testing method was developed to calculate cumulative phase differences critical for stable acceleration. Results confirm successful ion beam extraction, required beam currents, and energy levels at a dee voltage of ~ 40&#xa0;kV, supported by 17.57&#xa0;kW RF power. Although a phase lag of 61.5° remains at 3&#xa0;MeV, synchronization is maintained within acceptable limits. Further work will focus on magnetic field optimization to reduce phase deviation, enabling progression to higher-energy commissioning.</p>

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Method Development for Evaluating Initial Performance of a Low Energy Cyclotron

  • 期刊论文

  • 发表日期：

    2025年12月16日

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  • Silakhuddin Silakhuddin,
  • Idrus Abdul Kudus,
  • Kurnia Wibowo,
  • Ihwanul Aziz,
  • Fajar Sidik Permana,
  • Azza Alifa Muhammad,
  • Suharni Suharni,
  • Frida Iswining Diah,
  • Emy Mulyani,
  • Agus Dwiatmaja,
  • Taufik Taufik,
  • Syarip Syarip,
  • Djoko Slamet Pudjorahardjo

摘要

The DECY-13 cyclotron, a compact isochronous accelerator developed in Indonesia, is designed to accelerate negative hydrogen ions (H⁻) to produce radioisotopes for nuclear medicine. This study presents the methodology and implementation of a low-energy function assessment for the DECY-13, targeting the achievement of a 10 µA proton beam at 3 MeV. The assessment includes tests on subsystem functionality, magnetic field mapping, dee voltage requirements, RF power delivery, and phase synchronization between particle revolution and the RF dee field. A synchronization testing method was developed to calculate cumulative phase differences critical for stable acceleration. Results confirm successful ion beam extraction, required beam currents, and energy levels at a dee voltage of ~ 40 kV, supported by 17.57 kW RF power. Although a phase lag of 61.5° remains at 3 MeV, synchronization is maintained within acceptable limits. Further work will focus on magnetic field optimization to reduce phase deviation, enabling progression to higher-energy commissioning.