K-Shell Photoabsorption Edge of Strongly Coupled Matter Driven by Laser-Converted Radiation

• DOI: 10.1103/physrevlett.111.155003
• Publication Date: 2013-10-09T15:27:34Z
• Authors: Yang Zhao; Jiamin Yang; Jiyan Zhang; Guohong Yang; Minxi Wei; Gang Xiong; Tianming Song; Zhiyu Zhang; Lihua Bao; Bo Deng; Yukun Li; Xiaoan He; Chaoguang Li; Yu Mei; Ruizhen Yu; Shaoen Jiang; Shenye Liu; Yongkun Ding; Baohan Zhang
• Keywords: Hohlraum; Warm dense matter

The first observation of the $K$-shell photoabsorption edge strongly coupled matter with an ion-ion coupling parameter about 65 generated by intense x-ray radiation-driven shocks is reported. soft radiation laser interaction a ``dog bone'' high-$Z$ hohlraum used to ablate two thick CH layers, which cover KCl sample, create symmetrical inward shocks. While impact at central highly compressed obtained density 3--5 times solid and temperature 2--4 eV. spectra chlorine near are measured crystal spectrometer using short backlighter. redshift $K$ up 11.7 eV broadening 15.2 for maximum compression. A comparison redshifts broadenings dense plasma calculations made, it indicates potential improvements in theoretical description.