Update on Ion Studies

TL;DR

This paper provides an update on ion studies for the ILC damping ring, analyzing ion effects, gap roles, fill patterns, and presenting both analytical and simulation results to improve performance.

Contribution

It offers new analytical and simulation insights into ion density reduction techniques for the ILC damping ring.

Findings

Ion density reduction varies with fill patterns

Gap role significantly impacts ion accumulation

Simulation confirms analytical predictions

Abstract

The effect of ions has received one of the highest priorities in R&D for the damping rings of the International Linear Collider(ILC). It is detrimental to the performance of the electron damping ring. In this note, an update concerning the ion studies for the ILC damping ring is given. We investigate the gap role and irregular fill pattern in the ring.The ion density reduction in different fills is calculated analytically. Simulation results are also presented.