https://doi.org/10.1140/epjs/s11734-025-01542-x
Regular Article
Investigating the transport behavior of shockwave-induced cerium ejecta with advanced diagnostic techniques
1
National Key Laboratory of Plasma Physics, Laser Fusion Research Center, CAEP, 621900, Mianyang, China
2
Institute of Applied Physics and Computational Mathematics, 100094, Beijing, China
Received:
3
July
2024
Accepted:
21
February
2025
Published online:
12
March
2025
Understanding the underlying mechanisms of shockwave-induced ejecta is of considerable importance in both national defense and basic science. As research progresses, the behavior of ejecta fragments transporting in gases has become a focal point of interest. In this work, a series of experiments were conducted to measure the velocity spectrum of cerium ejecta using Photonic Doppler Velocimetry and to capture high-resolution radiographic images with high-energy X-ray sources. The results show that gas environments decelerate the ejecta, with the deceleration rate being more dependent on gas pressure than on gas type. Radiographic analysis revealed that, while the gas environment influences the deceleration, it does not significantly affect the ejecta mass, which is more impacted by diagnostic delay times. Additionally, biaxial X-ray radiography provided detailed images of the ejecta from different directions, highlighting the diverse behaviors of cerium ejecta. These findings provide valuable insights into the transport process of active metal ejecta in gas environments, enhancing our understanding of ejecta transport mechanisms.
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© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
