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<p>Various artificial neutron sources are employed globally for research and industrial applications, with Inertial Electrostatic Confinement (IEC) fusion setup standing out, owing to their compact size, operational simplicity, and diverse applications. IEC fusion devices can generate neutrons in both continuous and pulsed modes, making them useful for applications such as space power systems, producing isotopes for medical use, detecting buried explosives, treating cancer with boron-based neutron therapy, and creating plasma jets for space propulsion. This study highlights the development of a high - voltage Pulsed Power Driver (PPD) at Centre of Plasma Physics - Institute for Plasma Research (CPP - IPR) for pulsed neutron generation from a tube-shaped IEC fusion device. The PPD setup includes a capacitor rated at 0.04 µF and 100&#xa0;kV, along with a spark-gap switching unit for high-voltage operation, a power source, and supporting components such as resistive and diode elements, as well as a trigger circuit. Measurements obtained using voltage and current sensing probes indicate that the system reaches a maximum current of about 23.5&#xa0;A when operated at an input voltage of -35&#xa0;kV, with peak power dissipation near 800&#xa0;kW, marking significant progress in operating IEC fusion devices in pulsed mode.</p>

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Design and development of a high voltage pulsed power driver for a tubular inertial electrostatic confinement fusion device

  • 期刊论文

  • 发表日期：

    2026年7月20日

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  • Sanjib Kalita,
  • Nishant Bharali,
  • Smruti Ranjan Mohanty

摘要

Various artificial neutron sources are employed globally for research and industrial applications, with Inertial Electrostatic Confinement (IEC) fusion setup standing out, owing to their compact size, operational simplicity, and diverse applications. IEC fusion devices can generate neutrons in both continuous and pulsed modes, making them useful for applications such as space power systems, producing isotopes for medical use, detecting buried explosives, treating cancer with boron-based neutron therapy, and creating plasma jets for space propulsion. This study highlights the development of a high - voltage Pulsed Power Driver (PPD) at Centre of Plasma Physics - Institute for Plasma Research (CPP - IPR) for pulsed neutron generation from a tube-shaped IEC fusion device. The PPD setup includes a capacitor rated at 0.04 µF and 100 kV, along with a spark-gap switching unit for high-voltage operation, a power source, and supporting components such as resistive and diode elements, as well as a trigger circuit. Measurements obtained using voltage and current sensing probes indicate that the system reaches a maximum current of about 23.5 A when operated at an input voltage of -35 kV, with peak power dissipation near 800 kW, marking significant progress in operating IEC fusion devices in pulsed mode.