Halo containment in the ESS linac to ring transfer line

Bongardt, K.; Pabst, Michael J.; Letchford, Alan

doi:10.1063/1.51085

Search citation statements

Order By: Relevance

Paper Sections

Select...

Introduction1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1996

Publication Types

Select...

Other2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The physics of beam halo has been extensively studied through analytical theory and multi-particle simulations [1,2,3,4,5,6,7,8,9,10]. In these studies, the so-called particle-core model has been frequently used.…”

Section: Introductionmentioning

confidence: 99%

Beam halo studies using a 3-dimensional particle-core model

Qiang

Ryne²,

Habib³

Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366)

View full text Add to dashboard Cite

In this paper we present a study of beam halo based on a three-dimensional particle-core model of an ellipsoidal bunched beam in a constant focusing channel. For an initially mismatched beam, three linear envelope modes -a high frequency mode, a low frequency mode and a quadrupole mode -are identified. Stroboscopic plots are obtained for particle motion in the three modes. With higher focusing strength ratio, a 1:2 transverse parametric resonance between the test particle and core oscillation is observed for all three modes. The particle-high mode resonance has the largest amplitude and presents potentially the most dangerous beam halo in machine design and operation. For the longitudinal dynamics of a test particle, a 1:2 resonance is observed only between the particle and high mode oscillation, which suggests that the particle-high mode resonance will also be responsible for longitudinal beam halo formation.

show abstract