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Proceedings Paper

Nanofocus characterization at the Coherent X-ray Imaging instrument using 2D single grating interferometry
Author(s): Matthew H. Seaberg; Andrew Aquila; Mengning Liang; Hae Ja Lee; Bob Nagler; Yanwei Liu; Anne Sakdinawat; Frank Seiboth; Mikako Makita; Yanwen Sun; Riccardo Signorato; Sergio Carbajo; Yiping Feng; Jacek Krzywinski; Diling Zhu; Sébastien Boutet
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Paper Abstract

In this work we present the application of a 2D single grating wavefront sensor to align and characterize the 100 nm focus at the Coherent X-ray Imaging (CXI) endstation at the Linac Coherent Light Source (LCLS). The results agree well with a model of the system, indicating that the mirrors perform as designed when alignment is optimized. In addition, a comparison with the imprint technique confirms the validity of the results, which showed that wavefront-based alignment resulted in negligible astigmatism. Analysis of the retrieved focus profile indicates that intensities <1021 W=cm2 are achievable with currently available LCLS beam parameters and optimal mirror alignment.

Paper Details

Date Published: 24 April 2019
PDF: 12 pages
Proc. SPIE 11038, X-Ray Free-Electron Lasers: Advances in Source Development and Instrumentation V, 110380L (24 April 2019);
Show Author Affiliations
Matthew H. Seaberg, SLAC National Accelerator Lab. (United States)
Andrew Aquila, SLAC National Accelerator Lab. (United States)
Mengning Liang, SLAC National Accelerator Lab. (United States)
Hae Ja Lee, SLAC National Accelerator Lab. (United States)
Bob Nagler, SLAC National Accelerator Lab. (United States)
Yanwei Liu, SLAC National Accelerator Lab. (United States)
Anne Sakdinawat, SLAC National Accelerator Lab. (United States)
Frank Seiboth, DESY (Germany)
Mikako Makita, European XFEL GmbH (Germany)
Yanwen Sun, SLAC National Accelerator Lab. (United States)
Riccardo Signorato, Strumenti Scientifici CINEL s.r.l. (Italy)
Sergio Carbajo, SLAC National Accelerator Lab. (United States)
Yiping Feng, SLAC National Accelerator Lab. (United States)
Jacek Krzywinski, SLAC National Accelerator Lab. (United States)
Diling Zhu, SLAC National Accelerator Lab. (United States)
Sébastien Boutet, SLAC National Accelerator Lab. (United States)


Published in SPIE Proceedings Vol. 11038:
X-Ray Free-Electron Lasers: Advances in Source Development and Instrumentation V
Thomas Tschentscher; Luc Patthey; Kai Tiedtke; Marco Zangrando, Editor(s)

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