Journal Article

PUBDB-2026-00186

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Imaging of dynamic processes in materials with a laser-wakefield accelerator

Kang, J. ; Shalloo, R. J.DESY* ; Higgins, M. J.Extern*EMBL* ; Dann, S. J. D. ; Gruse, J.-N.Extern* ; Underwood, C. I. D. ; Antoine, A. F. ; Arran, C. ; Baird, C. D. ; Balcazar, M. D. ; Bourgeois, N. ; Cardarelli, J. A. ; Krushelnick, K. ; Mangles, S. P. D. ; Murphy, C. D. ; Lu, N. ; Rajeev, P. P. ; Selwood, M. P. ; Symes, D. R. ; Ridgers, C. P. ; Thomas, A. G. R. ; Thornton, C. ; Najmudin, Z. ; Sanders, P. G. ; Staublin, P. D. ; Shahani, A. J. (Corresponding author) ; Streeter, M. (Corresponding author)Extern*XFEL.EU*

2025
American Physical Society College Park, Md. [u.a.]

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Please use a persistent id in citations: doi:10.1103/jzzn-bsy8  doi:10.3204/PUBDB-2026-00186

Abstract: Betatron x rays generated from laser-wakefield accelerators are a promising source for imaging dynamic processes in materials. Here, we present proof-of-concept imaging of microstructural evolution in a hypermonotectic Al-Bi alloy, which consists of liquid Bi particles in a solid Al matrix. The images capture the elongation and fragmentation of Bi particles upon isothermal annealing. Because of the femtosecond time scale of the betatron source, the images are not subject to motion blur, whereas the accessibility of the source allows for studies of long-term processes such as annealing. The high-resolution data reveal that the evolution of Bi particles is mediated by an interplay of grain-boundary wetting and morphological instability, in stark contrast to an earlier proposal for (inverse) coarsening.

Note: cc-by

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Contributing Institute(s):

1. Plasma Acceleration and Laser Group (MPL)

Research Program(s):

1. 621 - Accelerator Research and Development (POF4-621) (POF4-621)
2. EuPRAXIA - Proposal for a Horizon 2020 Design Study on the “European Plasma Research Accelerator with eXcellence In Applications“ (EuPRAXIA) (653782) (653782)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2025

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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