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arXiv · 2010.14080

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

Yoo-Lim Cheon·Seok-Ho Moon·Moses Chung·Dong-O Jeon
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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.

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Yoo-Lim Cheon, Seok-Ho Moon, Moses Chung, Dong-O Jeon. 2020-10-27. Mitigation of Space-Charge-Driven Resonance and Instability in High-Intensity Linear Accelerators via Beam Spinning. https://doi.org/10.1016/j.nima.2021.165647

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