Beam energy online measurement of BEPCII LINAC

TL;DR

This paper presents an online beam energy measurement method for BEPCII LINAC using three BPMs to improve accuracy and reduce orbit fluctuation effects, with potential applications in beam energy feedback systems.

Contribution

It introduces a novel online measurement technique utilizing three beam position monitors to enhance accuracy over single-BPM methods.

Findings

The method achieves higher measurement reliability.

Error analysis confirms potential for feedback system integration.

Demonstrated effectiveness in real operational conditions.

Abstract

This paper describes beam energy online measurement of BEPCII linac, presents the calculation formula and some of the results. The method mentioned here measures the beam energy by acquiring beam positions in the horizontal direction with three beam position monitors (BPM) eliminating the effect of orbit fluctuation, which is much better than the one using the single BPM. The error analysis indicates that this online measurement has further potential usage such as a part of beam energy feedback system. The reliability of this method is also discussed and demonstrated in the end of this paper.