Experimental Study on Dose of X-ray Generated by Interaction between Ultra-short Ultra-intense Laser and Solid Target

被引：0

作者：

Qiu R. ^{[1
]}

Wei S. ^{[1
]}

Yang B. ^{[1
]}

Yu M. ^{[2
]}

Jiao J. ^{[2
]}

Lu W. ^{[1
]}

Ma C. ^{[2
]}

Yan Y. ^{[2
]}

Wu Y. ^{[2
,3
]}

Zhou W. ^{[2
,3
]}

Zhang H. ^{[1
]}

Li J. ^{[1
]}

机构：

[1] Key Laboratory of Particle and Radiation Imaging, Ministry of Education, Tsinghua University, Beijing

[2] Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang

[3] IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai

来源：

Yuanzineng Kexue Jishu/Atomic Energy Science and Technology | 2019年 / 53卷 / 10期

关键词：

Experimental study; Solid target; Ultra-short ultra-intense laser; X-ray dose;

D O I：

10.7538/yzk.2019.53.10.2098

中图分类号：

学科分类号：

摘要：

The interaction between ultra-short ultra-intense laser and solid target could produce significant X-ray doses. The radiation protection problem is an interdisciplinary problem of radiation protection and laser plasma physics, which is essential for the safe operation of ultra-short ultra-intense laser device. In order to verify the dose calculation formula proposed by Tsinghua University, the X-ray dose generated by the interaction of ultra-short ultra-intense laser and solid target was studied through experiment. A shielding structure for shielding hot electron and scattered photon in the target chamber was designed so that only the X-ray dose generated by the interaction of hot electron and solid target was measured. The X-ray dose distribution at different angles was measured under different laser intensities (7×1018-4×1019 W/cm2) using XG-Ⅲ laser device. The measurement results were compared with the results from different dose evaluation formulas. The responses of different dose measurement detectors were also compared in this experiment. The experimental results show that the dose evaluation formula proposed by Tsinghua University is more consistent with the experiment results compared with the formula proposed in literature. With the laser intensity increase, the forward X-ray dose increases more rapidly than that in the lateral direction. © 2019, Editorial Board of Atomic Energy Science and Technology. All right reserved.

引用

页码：2098 / 2105

页数：7

共 28 条

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