Massimi, L;
Clark, SJ;
Marussi, S;
Doherty, A;
Schulz, J;
Marathe, S;
Rau, C;
... Olivo, A; + view all
(2021)
Dynamic Multicontrast X-Ray Imaging Method Applied to Additive Manufacturing.
Physical Review Letters
, 127
(21)
, Article 215503. 10.1103/PhysRevLett.127.215503.
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Abstract
We present a dynamic implementation of the beam-tracking x-ray imaging method providing absorption, phase, and ultrasmall angle scattering signals with microscopic resolution and high frame rate. We demonstrate the method’s ability to capture dynamic processes with 22-ms time resolution by investigating the melting of metals in laser additive manufacturing, which has so far been limited to single-modality synchrotron radiography. The simultaneous availability of three contrast channels enables earlier segmentation of droplets, tracking of powder dynamic, and estimation of unfused powder amounts, demonstrating that the method can provide additional information on melting processes.
| Type: | Article |
|---|---|
| Title: | Dynamic Multicontrast X-Ray Imaging Method Applied to Additive Manufacturing |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.127.215503 |
| Publisher version: | https://doi.org/10.1103/PhysRevLett.127.215503 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10136347 |
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