Status of the ALS-U project to create a soft x-ray diffraction limited light source
Abstract The ALS-U project to upgrade the Advanced Light Source to a multi bend achromat lattice received CD-3 approval in 2022 marking the start of the construction phase for the Storage Ring. Construction of the accumulator under a prior CD-3A authorization is already well advanced. ALS-U promises to deliver diffraction limited performance in the soft x-ray range by lowering the horizontal emittance to about 70 pm rad resulting in two orders of magnitude brightness increase for soft x-rays compared to the current ALS. The design utilizes a nine bend achromat lattice, with reverse bending magnets and on-axis swap-out injection utilizing an accumulator ring. It is optimized to produce intense beams of soft x-rays, which offer spectroscopic contrast, nanometer-scale resolution, and broad temporal sensitivity. This paper presents the final design, prototype results as well as construction progress.
Authors
- Jason Joseph (ORCID: https://orcid.org/0000-0003-1433-1989)
- M. Lerche (ORCID: https://orcid.org/0000-0001-9688-1954)
- D. Nett
- Andrew Lodge (ORCID: https://orcid.org/0000-0001-5004-208X)
- Charles A. Swenson
- Marco Venturini (ORCID: https://orcid.org/0000-0003-3987-6379)
- Roberta Leftwich-Vann
- Hyoung‐Koo Lee (ORCID: https://orcid.org/0000-0002-9672-5828)
- Tianhuan Luo (ORCID: https://orcid.org/0000-0001-7358-9686)
- Olusola Omolayo
- G. Ganetis
- Elaine DiMasi
- Erik Wallén (ORCID: https://orcid.org/0000-0002-4485-9453)
- Jen Bohon (ORCID: https://orcid.org/0000-0002-7664-9899)
- Changchun Sun (ORCID: https://orcid.org/0000-0002-1522-7721)
- Ronald Earle Miller (ORCID: https://orcid.org/0000-0002-6392-4257)
- Magnus Johansson (ORCID: https://orcid.org/0000-0001-6708-1560)
- Syam Prasad Borra
- W.L. Waldron (ORCID: https://orcid.org/0000-0002-6009-0197)
- C. Steier (ORCID: https://orcid.org/0000-0002-4542-9324)
- S. Trovati
- Thorsten Hellert (ORCID: https://orcid.org/0000-0002-2797-0926)
- Dawei Wang (ORCID: https://orcid.org/0000-0001-6957-2494)
- Daniela Leitner
- B. Nicquevert (ORCID: https://orcid.org/0000-0002-7459-3713)
- K. Chow
- Jin Young Jung
- D. Robin
- A. Ratti
- D. Paulic
- C. Espino-Devine
Institutions
- Lawrence Berkeley National Laboratory (US)
- Brookhaven National Laboratory (US)
Publication Details
- Journal
- Journal of Physics Conference Series
- Published
- 2025-05-01
- DOI
- https://doi.org/10.1088/1742-6596/3010/1/012046
- Primary Topic
- Advanced X-ray Imaging Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.00