Iron lamination and interlaminar insulation for high-frequency pulsed magnets

Area of Science:

• Particle Accelerator Technology
• Electromagnetism and Magnet Design

Background:

• Eddy currents in pulsed magnet cores distort magnetic field pulses.
• Effective magnetic field pulse fidelity is critical for particle accelerators like kickers.

Purpose of the Study:

• To introduce and evaluate a novel iron lamination scheme with enhanced interlaminar insulation for pulsed magnets.
• To assess the performance improvement in matched kicker magnets for accelerators.

Main Methods:

• Designed and assembled test magnets utilizing both the novel and conventional iron lamination techniques.
• Extensively evaluated pulsed magnetic field waveforms for performance comparison.

Main Results:

• The novel lamination scheme achieved pulsed magnetic field waveform matching below 0.1% over the entire pulse duration.
• This performance was significantly superior to magnets with conventional lamination.

Conclusions:

• The proposed iron lamination scheme effectively suppresses eddy currents, enhancing magnetic field pulse quality.
• Developed magnets are promising for beam injection kickers in next-generation light sources and colliders, crucial for suppressing beam oscillation.