Single-shot electron radiography using a laser–plasma accelerator

Contact and projection electron radiography of static targets was demonstrated using a laser–plasma accelerator driven by a kilojoule, picosecond-class laser as a source of relativistic electrons with an average energy of 20 MeV. Objects with areal densities as high as 7.7 g/cm(2) were probed in mat...

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Detalles Bibliográficos
Autores principales: Bruhaug, G., Freeman, M. S., Rinderknecht, H. G., Neukirch, L. P., Wilde, C. H., Merrill, F. E., Rygg, J. R., Wei, M. S., Collins, G. W., Shaw, J. L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9908895/
https://www.ncbi.nlm.nih.gov/pubmed/36755138
http://dx.doi.org/10.1038/s41598-023-29217-4
Descripción
Sumario:Contact and projection electron radiography of static targets was demonstrated using a laser–plasma accelerator driven by a kilojoule, picosecond-class laser as a source of relativistic electrons with an average energy of 20 MeV. Objects with areal densities as high as 7.7 g/cm(2) were probed in materials ranging from plastic to tungsten, and radiographs with resolution as good as 90 μm were produced. The effects of electric fields produced by the laser ablation of the radiography objects were observed and are well described by an analytic expression relating imaging magnification change to electric-field strength.

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