Towards high-energy, high-resolution computed tomography via a laser driven micro-spot gamma-ray source

Computed Tomography (CT) is a powerful method for non-destructive testing (NDT) and metrology awakes with expanding application fields. To improve the spatial resolution of high energy CT, a micro-spot gamma-ray source based on bremsstrahlung from a laser wakefield accelerator was developed. A high...

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Detalles Bibliográficos
Autores principales: Wu, Y. C., Zhu, B., Li, G., Zhang, X. H., Yu, M. H., Dong, K. G., Zhang, T. K., Yang, Y., Bi, B., Yang, J., Yan, Y. H., Tan, F., Fan, W., Lu, F., Wang, S. Y., Zhao, Z. Q., Zhou, W. M., Cao, L. F., Gu, Y. Q.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6203838/
https://www.ncbi.nlm.nih.gov/pubmed/30367090
http://dx.doi.org/10.1038/s41598-018-33844-7
Descripción
Sumario:Computed Tomography (CT) is a powerful method for non-destructive testing (NDT) and metrology awakes with expanding application fields. To improve the spatial resolution of high energy CT, a micro-spot gamma-ray source based on bremsstrahlung from a laser wakefield accelerator was developed. A high energy CT using the source was performed, which shows that the resolution of reconstruction can reach 100 μm at 10% contrast. Our proof-of-principle demonstration indicates that laser driven micro-spot gamma-ray sources provide a prospective way to increase the spatial resolution and toward to high energy micro CT. Due to the advantage in spatial resolution, laser based high energy CT represents a large potential for many NDT applications.

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