Experimental investigation of titanium hohlraum as intense multi-keV X-ray source

Tu Shaoyong; Hu Guangyue; Miao Wenyong; Yuan Yongteng; Zhao Bin; Zheng Jian; Hou Lifei; Yan Ji; Zhan Xiayu; Jiang Shaoen; Ding Yongkun

doi:10.11884/HPLPB201527.032021

Volume 27 Issue 03

Mar. 2015

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Tu Shaoyong, Hu Guangyue, Miao Wenyong, et al. Experimental investigation of titanium hohlraum as intense multi-keV X-ray source[J]. High Power Laser and Particle Beams, 2015, 27: 032021. doi: 10.11884/HPLPB201527.032021

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Tu Shaoyong, Hu Guangyue, Miao Wenyong, et al. Experimental investigation of titanium hohlraum as intense multi-keV X-ray source[J]. High Power Laser and Particle Beams, 2015, 27: 032021. doi: 10.11884/HPLPB201527.032021

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Experimental investigation of titanium hohlraum as intense multi-keV X-ray source

doi: 10.11884/HPLPB201527.032021

1.
Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China;
2.
Research Center of Laser Fusion,CAEP,P.O.Box 919-988,Mianyang 621900,China

Received Date: 2014-07-02
Rev Recd Date: 2014-12-15
Publish Date: 2015-02-10

Abstract

Abstract

The titanium hohlraum as a bright X-ray source was explored on the Shenguang-Ⅲ prototype laser facility. It shows that the multi-keV X-rays are mainly generated near the cylinder axis. The multi-keV X-ray emission region and the duration increase with the increase of the hohlraum inner diameter, but the X-ray flux decreases, thus the optimal hohlraum inner diameter is in the range of 1000-1300 m for Shenguang-Ⅲ prototype laser facility. The presence of the bottom foil for the hohlraum can enhance the X-ray emission. The maximum X-ray conversion efficiency of the titanium hohlraums is 4.7% in 4 space, which is larger than that of the solid planar target.
- X-ray source,
- laser,
- hohlraums,
- conversion efficiency

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