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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]