K-shell photoabsorption edge of strongly coupled aluminum driven by laser-converted radiation. (19th May 2017)

• Record Type: Journal Article
• Authors: Zhao, Yang; Zhang, Zhiyu; Qing, Bo; Yang, Jiamin; Zhang, Jiyan; Wei, Minxi; Yang, Guohong; Song, Tianming; Xiong, Gang; Lv, Min; Hu, Zhimin; Deng, Bo; Hu, Xin; Zhang, Wenhai; Shang, Wanli; Hou, Lifei; Du, Huabing; Zhan, Xiayu; Yu, Ruizhen
• Is Part Of: Europhysics letters. Volume 117:Number 6(2017:Mar.)
• Publication Date: 2017-05-19
• Subjects: 52.50.Lp -- 32.30.Rj -- 78.70.Dm; Physics -- Periodicals; Electronic journals; 530.05
• DOI: 10.1209/0295-5075/117/65001
• Languages: English
• ISSNs: 0295-5075

Abstract

Abstract: The first observation of the K-shell photoabsorption edge of strongly coupled aluminum generated by intense x-ray radiation-driven shocks is reported. By using a "dog bone" gold hohlraum as an x-ray converter, colliding shocks compression and preheating shielding are achieved to generate an unexplored state with a density of 5.5 g/cm 3 and temperature of 0.43 eV (the ion-ion coupling parameter is around 240). The time-resolved K-shell photoabsorption edges are measured with a crystal spectrometer using a short x-ray backlighter. The broadenings and redshifts of the edges are studied by using the slope fitting of the edge and quantum molecular dynamics calculations. This work shows that the K-edge of aluminum driven by laser-converted radiation provides a novel capability to probe WDM at extended conditions.