Application of the longitudinal tomography on phase space reconstruction in rapid cycling synchrotrons

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 : 2025-07-01 Epub Date: 2025-04-11 DOI:10.1016/j.nima.2025.170495

M.T. Li , Y.S. Yuan , H.Y. Liu , L.S. Huang , Y.W. An , S.Y. Xu , M.Y. Huang , S. Wang

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Abstract

Acquisition of the beam data from experimental measurements plays a crucial role on the optimization of the routine operation of synchrotrons, especially for high-intensity hadron machines. In this paper, we present the adoption of the tomography algorithm to reconstruct the dynamic behavior of the longitudinal beam from the beam profile measured via the wall current monitor in the Rapid Cycling Synchrotron of the China Spallation Neutron Source (CSNS RCS). With the proposed assumption of the “one-macro-particle-each-cell”, we have shown that the longitudinal phase space information of the bunch evolution during the ramping period in the CSNS RCS can be reconstructed with sufficient efficiency and accuracy. The presented tomography algorithm has been successfully used in the CSNS RCS and also can be used for the upgrade project of the CSNS in the presence of dual rf harmonic system.

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纵向层析成像在快速循环同步加速器相空间重建中的应用

从实验测量中获取光束数据对同步加速器，特别是高强度强子同步加速器的日常操作优化起着至关重要的作用。本文采用层析成像算法，根据中国散裂中子源（CSNS RCS）快速循环同步加速器壁面电流监测器测量到的束流剖面，重建了纵束的动态行为。在提出的“一个宏观粒子-每个细胞”假设下，我们证明了可以以足够的效率和精度重建CSNS RCS中斜坡期束演化的纵向相空间信息。所提出的层析成像算法已成功应用于CSNS的RCS中，也可用于双射频谐波系统下的CSNS升级工程。

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.