Simulations and measurements of the impact of collective effects on dynamic aperture

TL;DR

This paper presents a benchmark study combining simulations and measurements to assess how collective effects influence the dynamic aperture in an APS storage ring, demonstrating good agreement between simulation and experiment.

Contribution

It introduces a detailed simulation approach using Elegant with distributed wakefield components and compares results with experimental data, highlighting the accuracy of the modeling.

Findings

Simulation results differ less than 5% from measurements.

Distributed wakefield modeling accurately predicts collective effects.

The study validates the simulation approach for dynamic aperture analysis.

Abstract

We describe a benchmark study of collective and nonlinear dynamics in an APS storage ring. A 1-mm long bunch was assumed in the calculation of wakefield and element by element particle tracking with distributed wakefield component along the ring was performed in Elegant simulation. The result of Elegant simulation differed by less than 5 % from experimental measurement