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

ABSTRACT: 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??m 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.

SUBMITTER: Wu YC

PROVIDER: S-EPMC6203838 | biostudies-other | 2018 Oct

REPOSITORIES: biostudies-other

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

Wu Y C YC Zhu B B Li G G Zhang X H XH Yu M H MH Dong K G KG Zhang T K TK Yang Y Y Bi B B Yang J J Yan Y H YH Tan F F Fan W W Lu F F Wang S Y SY Zhao Z Q ZQ Zhou W M WM Cao L F LF Gu Y Q YQ

Scientific reports 20181026 1

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-spo ...[more]

PMID: 30367090

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