title: [Quantitative analysis of the concentration of Br-doping in micro-shell coating with XRF].
abstract: In inertial confinement fusion (ICF) physics experiment, the micro-shell that contains Br-doped CH coating must be characterized for doping Br concentration level. X-ray fluorescence (XRF), with its unique capability to quantitatively determine concentrations of most elements simultaneously and non-destructively, is generally the method of choice for total dopant (Z > 11) concentration. In the present paper, a method to determine the dopant concentration in ICF micro-shell coating with X-ray fluorescence spectrometry is described, and the calibration model is founded by the calculation of fluorescence intensity of film and micro-shell sample. Based on the calibration model, the fluorescence intensity vs concentration of Br-doped CH coating of micro-shell was obtained. The experiment result shows that X-ray fluorescence spectrometry is a nondestructive and accurate method of measurement of coating dopant in the inertial confinement fusion micro-shell sample, and the measuring error is about 5% for Br doped CH coating of micro-shells with 10 micron thickness coating.
authors.affiliation: Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China. wildhovseyun@yahoo.com.cn
authors.forename: Xiao-Jun
authors.initials: XJ
authors.lastname: Ma
authors.forename: Dang-Zhong
authors.initials: DZ
authors.lastname: Gao
authors.forename: Jian-Hong
authors.initials: JH
authors.lastname: Feng
authors.forename: Yu-Hong
authors.initials: YH
authors.lastname: Li
authors.forename: Cheng-Gang
authors.initials: CG
authors.lastname: Ye
authors.forename: Yuan-Qiong
authors.initials: YQ
authors.lastname: Liu