Progress toward x-ray Thomson scattering of warm dense matter on the Z accelerator

被引：2

作者：

Ao, T. ^{[1
]}

Harding, E. C. ^{[1
]}

Bailey, J. E. ^{[1
]}

Desjarlais, M. P. ^{[1
]}

Hansen, S. B. ^{[1
]}

Lemke, R. W. ^{[1
]}

Rochau, G. A. ^{[1
]}

Sinars, D. B. ^{[1
]}

Smith, I. C. ^{[1
]}

Geissel, M. ^{[1
]}

Reneker, J. ^{[1
]}

Kernaghan, M. D. ^{[1
]}

Mix, L. P. ^{[1
]}

Wenger, D. F. ^{[1
]}

机构：

[1] Sandia Natl Labs, Albuquerque, NM 87185 USA

来源：

18TH APS-SCCM AND 24TH AIRAPT, PTS 1-19 | 2014年 / 500卷

关键词：

D O I：

10.1088/1742-6596/500/8/082001

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Experiments on the Z accelerator have demonstrated the ability to produce warm dense matter (WDM) states with unprecedented uniformity, duration, and size. Significant progress to combine x-ray Thomson scattering (XRTS), a powerful diagnostic for WDM, with the unique environments created at Z has been accomplished. The large current of Z is used to magnetically launch Al flyers to impact CH2 foam (0.12 g/cm(3)) samples. The uniformlyshocked CH2 foam volume is about 10 mm3 and the steady shock state lasts up to about 100 ns, which are approximately 1000 & 100 times larger, respectively, than typical laser shocked samples. The Z-Beamlet laser irradiates a 5,u,m thick Mn foil near the load to generate 6.181 keV Mn-He-c x x-rays that penetrate into the CH2 foam and scatter from it. A high sensitivity x-ray scattering spherical spectrometer with both high spatial and spectral resolution is fielded, which enables benchmark quality data by simultaneously measuring x-rays scattered from shocked and ambient regions of the CH2 foam, and the Mn x-ray source. Experimental efforts have achieved low x-ray background and mitigation of load debris, and measured high quality XRTS data of ambient CH2 foam have validated the technique.

引用

页数：6

共 25 条

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