Abstract

Determination of the amount of ruthenium in surface catalysts was important in predicting catalyst activity and projecting catalyst consumption rates. In order to develop a nondestructive analytical method for ruthenium, conventional and portable x-ray fluorescence equipment was used to analyze ruthenium in catalytic surfaces. The portable unit performed comparably to the conventional wavelength dispersive instrument, allowed larger samples to be measured, and provided linear calibration over a sufficiently large range to be useful for quality control. Calibration standards were prepared in matched pairs to allow analysis of one sample of each pair by atomic spectroscopy methods.

Method for determining the modulation transfer function of X-ray fluorescence mapping system

Liqiang Ren, Zhongxing Zhou, Muhammad U. Ghani, Yuhua Li, and Hong Liu
Opt. Express 22(18) 21199-21213 (2014)

Laser-induced fluorescence measurement of oxygen atoms above a catalytic combustor surface

Mark J. Dyer, Lisa D. Pfefferle, and David R. Crosley
Appl. Opt. 29(1) 111-118 (1990)

Application of three-dimensional confocal x-ray fluorescence equipment in surface topography and depth contour scanning

Zhaoying Meng, Zhujun Xiang, Zhiguo Liu, Man Chen, Kai Pan, Peng Zhou, and Xiaoyan Lin
Appl. Opt. 58(11) 2789-2794 (2019)

Joint reconstruction of x-ray fluorescence and transmission tomography

Zichao Wendy Di, Si Chen, Young Pyo Hong, Chris Jacobsen, Sven Leyffer, and Stefan M. Wild
Opt. Express 25(12) 13107-13124 (2017)

Performance of a ruthenium beam separator used to separate soft x rays from light generated by a high-order harmonic light source

Satoshi Ichimaru, Masatoshi Hatayama, Tadayuki Ohchi, Eric M. Gullikson, and Satoshi Oku
Appl. Opt. 55(5) 984-988 (2016)