Electron cloud studies for DAΦNE collider and e+e− future circular collider damping ring

IF 1.4 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-09-19 DOI:10.1016/j.nima.2025.171019

Ozgur Etisken , Danilo Quartullo , Senem Ozdemir , Giovanni Franzini , Catia Milardi , Mikhail Zobov , Antonio De Santis , Rena Ciftci

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引用次数: 0

Abstract

The electron cloud (e-cloud) is a critical collective effect that can significantly affect the performance of accelerators storing positively charged particles. Its presence can lead to transverse instabilities, beam losses, emittance growth, energy deposition, and vacuum degradation. This paper presents measurements of e-cloud-induced coupled bunch instabilities and betatron oscillations tune shifts in the positron ring of the DA

Φ

NE electron-positron collider, along with supporting e-cloud build-up simulations. The numerical code for the e-cloud build-up simulations, once validated with DA

Φ

NE measurements, has been used to simulate the e-cloud formation in the Damping Ring (DR) of the positron–electron Future Circular Collider (FCC-ee). The electron cloud density calculated numerically has been compared with the single bunch instability thresholds evaluated analytically, indicating that electron cloud instability can be potentially dangerous for the damping ring.

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DAΦNE对撞机和e+e−未来圆形对撞机阻尼环的电子云研究

电子云（e-cloud）是一种关键的集体效应，可以显著影响加速器存储正电荷粒子的性能。它的存在会导致横向不稳定、光束损失、发射度增长、能量沉积和真空退化。本文介绍了电子云诱导的耦合束不稳定性和电子-正电子对撞机DAΦNE正电子环中的电子振荡调谐位移的测量，以及支持电子云构建模拟。电子云形成模拟的数值代码，一旦通过DAΦNE测量验证，已被用于模拟正电子未来圆形对撞机（FCC-ee）阻尼环（DR）中的电子云形成。将数值计算得到的电子云密度与解析计算得到的单束不稳定性阈值进行了比较，表明电子云不稳定性对阻尼环具有潜在的危险性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment 物理-光谱学

CiteScore

3.20

自引率

21.40%

发文量

787

审稿时长

1 months

期刊介绍： Section A of Nuclear Instruments and Methods in Physics Research publishes papers on design, manufacturing and performance of scientific instruments with an emphasis on large scale facilities. This includes the development of particle accelerators, ion sources, beam transport systems and target arrangements as well as the use of secondary phenomena such as synchrotron radiation and free electron lasers. It also includes all types of instrumentation for the detection and spectrometry of radiations from high energy processes and nuclear decays, as well as instrumentation for experiments at nuclear reactors. Specialized electronics for nuclear and other types of spectrometry as well as computerization of measurements and control systems in this area also find their place in the A section. Theoretical as well as experimental papers are accepted.