High-energy X-ray radiography of laser shock loaded metal dynamic fragmentation using high-intensity short-pulse laser

被引：26

作者：

Chu, Genbai ^{[1
]}

Xi, Tao ^{[1
]}

Yu, Minghai ^{[1
]}

Fan, Wei ^{[1
]}

Zhao, Yongqiang ^{[1
]}

Shui, Min ^{[1
]}

He, Weihua ^{[1
]}

Zhang, Tiankui ^{[1
]}

Zhang, Bo ^{[1
]}

Wu, Yuchi ^{[1
,2
]}

Zhou, Weimin ^{[1
,2
]}

Cao, Leifeng ^{[1
,2
]}

Xin, Jianting ^{[1
]}

Gu, Yuqiu ^{[1
,2
]}

机构：

[1] China Acad Engn Phys, Laser Fus Res Ctr, Sci & Technol Plasma Phys Lab, Mianyang 621900, Peoples R China

[2] Shanghai Jiao Tong Univ, IFSA Collaborat Innovat Ctr, Shanghai 200240, Peoples R China

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2018年 / 89卷 / 11期

关键词：

DAMAGE;

D O I：

10.1063/1.5034401

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The dynamic fragmentation of shock-loaded high-Z metal is of considerable importance for both basic and applied science. The areal density and mass-velocity distribution of dynamic fragmentation are crucial factors in understanding this issue. Experimental methods, such as pulsed X-ray radiography and proton radiography, have been utilized to obtain information on such factors; however, they are restricted to a complex device, and the spatial resolution is in the order of 100 mu m. In this work, we present the high-quality radiography of the dynamic fragmentation of laser shock-loaded tin, with good two-dimensional (2D) spatial resolution. Dynamic fragmentation is generated via high-intensity ns-laser shock-loaded tin. A high-energy X-ray source in the 50-200 keV range is realized by the interaction of a high-intensity ps-pulse with an Au microwire target, attached to a low-Z substrate material. A high 2D resolution of 12 mu m is achieved by point-projection radiography. The dynamic-fragmentation radiography is clear, and the signal-to-noise ratio is sufficiently high for a single-shot experiment. This unique technique has potential application in high-energy density experiments. Published by AIP Publishing.

引用

页数：6

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