Journal Article

PUBDB-2024-04882

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Dual-beam X-ray nano-holotomography

Flenner, S. (Corresponding author)Extern*HZG*Hereon* ; Kubec, A.Extern* ; David, C.Extern* ; Greving, I.HZG*Hereon* ; Hagemann, J.DESY*

2024
Wiley-Blackwell

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Please use a persistent id in citations: doi:10.1107/S1600577524003801  doi:10.3204/PUBDB-2024-04882

Abstract: Nanotomography with hard X-rays is a widely used technique for high-resolution imaging, providing insights into the structure and composition of various materials. In recent years, tomographic approaches based on simultaneous illuminations of the same sample region from different angles by multiple beams have been developed at micrometre image resolution. Transferring these techniques to the nanoscale is challenging due to the loss in photon flux by focusing the X-ray beam. We present an approach for multi-beam nanotomography using a dual-beam Fresnel zone plate (dFZP) in a near-field holography setup. The dFZP generates two nano-focused beams that overlap in the sample plane, enabling the simultaneous acquisition of two projections from slightly different angles. This first proof-of-principle implementation of the dual-beam setup allows for the efficient removal of ring artifacts and noise using machine-learning approaches. The results open new possibilities for full-field multi-beam nanotomography and pave the way for future advancements in fast holotomography and artifact-reduction techniques.

Note: This research was supported in part through the Maxwellcomputational resources operated at DESY. Funding isacknowledged from Deutsche Forschungsgemeinschaft (grantNo. 192346071).

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Contributing Institute(s):

1. Helmholtz-Zentrum Hereon (Hereon)
2. FS-PETRA (FS-PETRA)

Research Program(s):

1. 633 - Life Sciences – Building Blocks of Life: Structure and Function (POF4-633) (POF4-633)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
3. DFG project 192346071 - SFB 986: Maßgeschneiderte Multiskalige Materialsysteme - M3 (192346071) (192346071)

Experiment(s):

1. PETRA Beamline P05 (PETRA III)

Appears in the scientific report 2024

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