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Soft X-ray Monochromators for Third-Generation Undulator Sources.

H A Padmore, T Warwick

Journal of Synchrotron Radiation

|October 1, 1994

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High-resolution soft X-ray spectroscopy is now possible thanks to undulator sources. This advancement enables new applications in photoemission and microscopy, revolutionizing X-ray analysis.

Area of Science:

Physics
Spectroscopy
Materials Science

Background:

Bending-magnet-based soft X-ray monochromators have significantly improved resolving power over the last decade.
Limited flux at high resolution previously restricted applications to efficient measurements like photo-absorption.

Purpose of the Study:

To review the development of undulator-based soft X-ray monochromators.
To discuss the benefits and challenges of undulator sources for high-resolution spectroscopy.
To describe the current state of undulator beamline 7.0 at the Advanced Light Source.

Main Methods:

Review of recent advancements in undulator-based soft X-ray monochromator designs.
Analysis of undulator source characteristics and their impact on spectroscopy.

Related Experiment Videos

Description of a state-of-the-art undulator beamline.

Main Results:

Undulator sources have enabled high-resolution soft X-ray spectroscopy for applications beyond photo-absorption, including photoemission and microscopy.
Significant improvements in monochromator resolving power have been achieved.
The Advanced Light Source's undulator beamline 7.0 represents the current state of the art.

Conclusions:

Undulator technology has revolutionized soft X-ray spectroscopy by providing high flux at high resolution.
New spectroscopic techniques and microscopy are now feasible.
Future directions for next-generation soft X-ray monochromators are considered.