25–30 Aug 2024
Hilton Chicago
America/Chicago timezone

Photocathode drive laser upgrade for the Advanced Photon Source linac

MOPB008
26 Aug 2024, 16:00
2h
Boulevard (Hilton Chicago)

Boulevard

Hilton Chicago

720 South Michigan Ave Chicago, IL 60605 USA
Poster Presentation MC1.2 Electron and ion sources, guns, photo injectors, charge breeders Monday Poster Session

Speaker

Jeffrey Dooling (Argonne National Laboratory)

Description

A Ytterbium-based photocathode gun drive laser is proposed for the Advanced Photon Source linac to replace the existing antiquated Nd:Glass laser. The proposed laser will readily operate at 30 Hz providing 0.3 mJ of 257-nm UV radiation per pulse yielding 1 nC from our copper cathode, s-band gun in support of user operations. In addition, the laser allows generation of lower-charge, low-emittance electron beams for high-brightness experiments in the APS Linac Extension Area. An advantage of updating the PC Gun drive-laser is that the configuration includes a downstream 3-m-long accelerating structure; this provides an additional 35-40 MeV of energy at the linac output over what is presently available from either of the two thermionic-cathode guns. Higher linac output energy will enhance stability for high-charge operation of the new storage-ring. We outline the laser physics requirements for our LCLS-I-style PC gun and summarize the expected beam performance.

Funding Agency

This work is supported by the U.S. D.O.E.,Office of Science, Office of Basic Energy Sciences, under contract number DE-AC02- 06CH11357.

Author

Jeffrey Dooling (Argonne National Laboratory)

Co-authors

Alex Lumpkin (Argonne National Laboratory) Alexander Zholents (Argonne National Laboratory) Kent Wootton (Argonne National Laboratory) Philippe Piot (Northern Illinois University) William Berg (Argonne National Laboratory) Yine Sun (Argonne National Laboratory)

Presentation materials

There are no materials yet.