17–22 May 2026
C.I.D
Europe/Zurich timezone

Optimization of a Storage Ring Pre-Injector for High Transmission Efficiency and Low Energy Spread

TUP2664
19 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC2.A08: Photon sources: Linear Accelerators Poster session

Speaker

Ms Fengyi Zhang (University of Science and Technology of China)

Description

In this paper, the Non-dominated Sorting Genetic Algorithm II (NSGA-II), combined with the beam dynamics code ASTRA, was employed for the multi-objective optimization of the output performance of an electron linear accelerator (linac). Taking the pre-injector of a storage ring light source as an example, the electron linac consists of a thermionic cathode high-voltage electron gun, a sub-harmonic buncher (SHB), a buncher, and a traveling-wave accelerator tube. Maximizing the transmission efficiency and minimizing the energy spread were defined as the core objectives of the optimization. The optimization results indicate that the beam energy at the linac exit reaches approximately 65 MeV, with the transmission efficiency exceeding 70% and the energy spread maintained below 0.35%.

Funding Agency

Anhui Provincial Natural Science Foundation (Youth Project, Category C, No. 2508085QA013);
The National Natural Science Foundation of China (12405173)

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Author

Wenjie Xu (University of Science and Technology of China)

Co-authors

Ms Fengyi Zhang (University of Science and Technology of China) Lin Wang (University of Science and Technology of China) Tong Zhang (University of Science and Technology of China) Yalin Lu (University of Science and Technology of China) ZhuoXia Shao (University of Science and Technology of China) Ziqiang Dong (University of Science and Technology of China)

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