Mitigation of Space-Charge-Driven Resonance and Instability in High-Intensity Linear Accelerators via Beam Spinning

Abstract

For modern high-intensity linear accelerators, the well-known envelope instability and recently reported fourth-order particle resonance impose a fundamental operational limit (i.e., zero-current phase advance should be less than 90 deg). Motivated by the stability of spinning flying objects, we propose a novel approach of using spinning beams to surpass this limit. We discovered that spinning beams have an intrinsic characteristic that can suppress the impact of the fourth-order resonance on emittance growth and the associated envelope instability.

References in corpus (8)

• Generation of angular-momentum-dominated electron beams from a photoinjector
• Landau Damping of Beam Instabilities by Electron Lenses
• Experimental Proof of Adjustable Single-Knob Ion Beam Emittance Partitioning
• Three-dimensional envelope instability model in periodic focusing channels
• Generalized Kapchinskij-Vladimirskij Distribution and Beam Matrix for Phase-Space Manipulations of High-Intensity Beams
• Effects of Nonlinear Decoherence on Halo Formation
• Extension of Busch's Theorem to Particle Beams
• Suppression of Space Charge Induced Beam Halo in Nonlinear Focusing Channel