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

The APS Photoinjector in High-Charge and High-Brightness Modes

TUP2329
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

Yine Sun (Argonne National Laboratory)

Description

The recent installation of a new photocathode drive laser has significantly improved the reliability of photoinjector operations at the APS, Argonne. The photoinjector is designed to operate in two distinct modes: high-charge (Hi-Q) mode and high-brightness (Hi-B) mode. The Hi-Q mode is intended for direct injection from the linac into the booster ring to support APS-U operations, eliminating the need for charge accumulation typically performed in the particle-accumulator ring. In contrast, the Hi-B mode optimizes the photoemission source to produce high-brightness electron bunches with sub-micrometer emittance at 100 pC, which can be delivered to the Linac Extension Area (LEA) for advanced accelerator research and development.

In this paper, we present beam-dynamics modeling and optimization of the photoinjector beam for both Hi-Q and Hi-B modes. Additionally, we report the first experimental measurements of photoinjector beams generated using the new drive laser and compare these results with simulation predictions.

Footnotes

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Funding Agency

Work supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-ACO2-O6CH11357.

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Authors

Jeffrey Dooling (Argonne National Laboratory) Philippe Piot (Argonne National Laboratory) Ran Hong (Argonne National Laboratory) Tim Berenc (Argonne National Laboratory) Yawei Yang (Argonne National Laboratory) Yine Sun (Argonne National Laboratory)

Presentation materials

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