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

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 pro...

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Veröffentlicht in:arXiv.org 2021-07
Hauptverfasser: Yoo-Lim, Cheon, Seok-Ho, Moon, Chung, Moses, Dong-O Jeon
Format: Artikel
Sprache:eng
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Zusammenfassung: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.
ISSN:2331-8422
DOI:10.48550/arxiv.2010.14080