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

Optimization of Magnetic Field Parameters in AMD for Enhanced Positron Yield

THP3625
21 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC3.T39: Advanced techniques/Novel sources: Positron sources Poster session

Speaker

xin xu (University of Science and Technology of China)

Description

The longitudinal magnetic field profile of the Adiabatic Matching Device critically determines positron capture efficiency. While traditional designs prioritize the long adiabatic decay, this study investigates the often-overlooked non-adiabatic rise from the target exit field $B_0$, to the peak field $B_{\text{peak}}$. By systematically varying $B_0$, $B_{\text{peak}}$,, and the rise distance Z, we analyzed their impact on positron yield. Results demonstrate that the magnetic field gradient in this initial phase is pivotal. Specifically, optimizing the $B_0$/$B_{\text{peak}}$ ratio and minimizing the rise distance significantly enhances capture efficiency. These findings provide essential optimization strategies for high-performance positron sources.

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Author

xin xu (University of Science and Technology of China)

Co-authors

Ailin Zhang (University of Science and Technology of China) Guoxi Pei (Institute of High Energy Physics) Qing Luo (University of Science and Technology of China)

Presentation materials

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