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arXiv · 1707.08239

The Effect of Electron Lens as Landau Damping Device on Single Particle Dynamics in HL-LHC

Alexander Valishev
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Abstract

An electron lens can serve as an effective mechanism for suppressing coherent instabilities in high intensity storage rings through nonlinear amplitude dependent betatron tune shift. However, the addition of a strong localized nonlinear focusing element to the accelerator lattice may lead to undesired effects in particle dynamics. We evaluate the effect of a Gaussian electron lens on single particle motion in HL-LHC using numerical tracking simulations, and compare the results to the case when an equal tune spread is generated by conventional octupole magnets.

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Alexander Valishev. 2017-07-25. The Effect of Electron Lens as Landau Damping Device on Single Particle Dynamics in HL-LHC. https://arxiv.org/abs/1707.08239

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