Validation of a laser driven plasma X-ray microfocus source for high resolution radiography imaging

被引：7

作者：

Martin, L. ^{[1
]}

Benlliure, J. ^{[1
]}

Cortina-Gil, D. ^{[1
]}

Haruna, A. ^{[1
]}

Ruiz, C. ^{[2
]}

机构：

[1] Univ Santiago de Compostela, IGFAE, Santiago De Compostela, Spain

[2] Univ Salamanca, Inst Fis Fundamental & Matemat, Salamanca, Spain

来源：

PHYSICA MEDICA-EUROPEAN JOURNAL OF MEDICAL PHYSICS | 2021年 / 82卷

关键词：

X-ray sources; Phase contrast; Laser driven plasma accelerators; FEMTOSECOND LASER;

D O I：

10.1016/j.ejmp.2020.12.023

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

Hard X-ray radiation with high brightness and high fluxes is nowadays available on the fourth generation of synchrotrons and X-FELs, but the large size and complexity of these sources makes its use difficult for widespread applications. New table top X-ray sources driven by ultrashort high power lasers offer a compelling route to expand the availability of hard X-ray sources. They can be used for advanced imaging techniques, due to its small source size and spatial coherence. We present in this paper the validation of a compact laser-driven X-ray microfocus source for high-resolution radiography imaging. This novel device was built at the Laser Laboratory for Acceleration and Applications (L2A2) at the University of Santiago de Compostela. This paper describes the laser-plasma X-ray source with improved stability and characterize some of its properties. We demonstrate the high-contrast and resolution of the images obtained with this source by using masks with well known geometries, and detailed analysis by using the modulation transfer function. Finally, we discuss the properties of this source in comparison to other compact microfocus X-ray sources.

引用

页码：163 / 170

页数：8

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