Wavefront Preservation in Soft X-Ray Beamlines for the Advanced Light Source Upgrade

Journal Article · 31 January 2022 · Synchrotron Radiation News

DOI: https://doi.org/10.1080/08940886.2021.2022398 · OSTI ID:2448484

Wojdyla, Antoine ^[1]; Goldberg, Kenneth A. ^[1]

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1. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)

In the 4th generation of X-ray light sources, including Free-Electron Lasers (FEL) and Diffraction-Limited Storage Rings (DLSR), the emittance of the electron beam is small or negligible compared to the emittance of the photon beam produced by insertion devices, thus generating coherent beams of light. Over the next few years, several lightsource facilities will be built or upgraded to produce X-ray beams of unprecedented coherent flux. Delivering these exceptional beams to the sample chambers requires beamline optical systems that are designed to preserve the wavefront properties. Our goal in the Advanced Light Source upgrade project (ALS-U) is to create a new class of beamlines that reach diffraction-limited X-ray optical quality through tightly integrated, efficient optical systems, diagnostics, and adaptive mirrors, thus providing users with new scientific capabilities offered by coherent X-ray light interactions with matter. Herein we describe aspects of the beamlines’ design as they enter the project’s final design phase.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
• Contributing Organization: ALS-U Beamline and Optical Systems Team
• Grant/Contract Number: AC02-05CH11231
• OSTI ID: 2448484
• Journal Information: Synchrotron Radiation News, Journal Name: Synchrotron Radiation News Journal Issue: 6 Vol. 34; ISSN 0894-0886
• Publisher: Taylor & FrancisCopyright Statement
• Country of Publication: United States
• Language: English