Single-shot electron radiography using a laser-plasma accelerator

被引：5
|
作者：
Bruhaug, G. [1 ]
Freeman, M. S. [2 ]
Rinderknecht, H. G. [1 ]
Neukirch, L. P. [2 ]
Wilde, C. H. [2 ]
Merrill, F. E. [2 ]
Rygg, J. R. [1 ]
Wei, M. S. [1 ]
Collins, G. W. [1 ]
Shaw, J. L. [1 ]
机构：
[1] Univ Rochester, Lab Laser Energet, Rochester, NY 14623 USA
[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
来源：
SCIENTIFIC REPORTS | 2023年 / 13卷 / 01期
关键词：
PROTON RADIOGRAPHY; OPTIMIZATION; PHYSICS;
D O I：
10.1038/s41598-023-29217-4
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Contact and projection electron radiography of static targets was demonstrated using a laser-plasma accelerator driven by a kilojoule, picosecond-class laser as a source of relativistic electrons with an average energy of 20 MeV. Objects with areal densities as high as 7.7 g/cm(2) were probed in materials ranging from plastic to tungsten, and radiographs with resolution as good as 90 mu m were produced. The effects of electric fields produced by the laser ablation of the radiography objects were observed and are well described by an analytic expression relating imaging magnification change to electric-field strength.
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页数：10
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