title: K-shell emission x-ray imaging of Z-pinch plasmas with a pinhole and a logarithmic spiral crystal.
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.
authors.affiliation: Institute of Fluid Physics, CAEP, Mianyang, Sichuan 621900, People's Republic of China. yungore@163.com
authors.forename: Qingguo
authors.initials: Q
authors.lastname: Yang
authors.forename: Zeren
authors.initials: Z
authors.lastname: Li
authors.forename: Qixian
authors.initials: Q
authors.lastname: Peng
authors.forename: Libing
authors.initials: L
authors.lastname: Yang
authors.forename: Guanhua
authors.initials: G
authors.lastname: Chen
authors.forename: Yan
authors.initials: Y
authors.lastname: Ye
authors.forename: Xianbin
authors.initials: X
authors.lastname: Huang
authors.forename: Hongchun
authors.initials: H
authors.lastname: Cai
authors.forename: Jing
authors.initials: J
authors.lastname: Li
authors.forename: Shali
authors.initials: S
authors.lastname: Xiao