期刊
SCIENTIFIC REPORTS
卷 8, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41598-018-33844-7
关键词
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资金
- National key program for S& T Research and Development [2016YFA0401100]
- Science Challenge Project [TZ2017005]
- National Natural Science Foundation of China [11375161, 11505166, 11405159]
- China Academy of Engineering Physics [2014-1-017, 2015B0401090]
- Sciences and Technology on Plasma Physics Laboratory at CAEP [9140C680302130C68242, 6142A04020102]
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 mu m at 10% contrast. Our proof-of-principle demonstration indicates that laser driven microspot 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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