K-shell emission x-ray imaging of Z-pinch plasmas with a pinhole and a logarithmic spiral crystal

Qingguo Yang; Zeren Li; Qixian Peng; Libing Yang; Guanhua Chen; Yan Ye; Xianbin Huang; Hongchun Cai; Jing Li; Shali Xiao

doi:10.1063/1.3634002

K-shell emission x-ray imaging of Z-pinch plasmas with a pinhole and a logarithmic spiral crystal

Rev Sci Instrum. 2011 Sep;82(9):093301. doi: 10.1063/1.3634002.

Authors

Qingguo Yang¹, Zeren Li, Qixian Peng, Libing Yang, Guanhua Chen, Yan Ye, Xianbin Huang, Hongchun Cai, Jing Li, Shali Xiao

Affiliation

¹ Institute of Fluid Physics, CAEP, Mianyang, Sichuan 621900, People's Republic of China. yungore@163.com

PMID: 21974579
DOI: 10.1063/1.3634002

Abstract

An in-chamber, mini x-ray imaging instrument employs a pinhole and a logarithmic spiral crystal has been developed for obtaining K-shell line images of the imploding aluminum wire array on the "Yang" accelerator. The logarithmic spiral crystal acts as a monochromator and a non-dispersive mirror that reflects the pinhole image to a x-ray film detector with a very narrow photon energy bandwidth (<1 eV, mainly determined by the width of rocking curve of the crystal). Two imaging configurations with the use of Quartz (10 ̅10) crystal and Mica (002) crystal are designed, respectively, to image the Al Ly(α2) line (1727.7 eV) emission and Al He(α) intercombination line (1588.3 eV) emission. The primary experimental data corresponding to these two configurations are presented and discussed.