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arXiv 2209.14944physics.plasm-phphysics.acc-ph
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使用Laser -等离子体加速器的单次电子射线照相术

Single-Shot Electron Radiography Using a Laser-Plasma Accelerator

G. Bruhaug, M. S. Freeman, H. G. Rinderknecht, L. P. Neukirch, C. H. Wilde, F. E Merrill, J. R. Rygg, M. S. Wei, G. W. Collins, J. L. Shaw

摘要:

静态目标的接触和投影电子照相术被证明使用激光等离子体加速器驱动的千焦,皮秒级激光作为相对论电子源,平均能量为20 MeV。面密度高达7.7 g/cm^2的物体在从塑料到钨的各种材料中进行探测,并产生分辨率高达90微米的射线照片。观察到了激光烧蚀射线照相物体所产生的电场的影响,并通过将成像放大率变化与电场强度相关的解析表达式很好地描述了该影响。

英文摘要:

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 micrometers 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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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