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Updated: May 20, 2025

Applying X-ray Imaging Crystal Spectroscopy for Use as a High Temperature Plasma Diagnostic
Published on: August 25, 2016
High-Precision and High-Resolution X-ray Fluorescence Analysis System for Chlorine Elements Based on Double-Curved
Chenyang Lu1, Chong Huang1, Xuefeng Wang1
1Jiangsu Skyray Instrument Co., Ltd., Suzhou 215000, China.
None:
In X-ray fluorescence spectroscopy, specific elements, particularly neighboring elements, interfere with each other. A wavelength-dispersive optical system based on double-curved crystal (DCC) with multiple faces was designed. A Johann-type graphite curved crystal was used to focus the monochromatic excitation light, and a logarithmic spiral graphite curved crystal was used to collect the target fluorescence (Cl, 2.62 keV). The experimental results show that the wavelength dispersion device based on the DCC technology has a Cl detection limit of 0.18 part per million (ppm) when used for oil products. In the detection of a 1 ppm standard sample, the detection range of the device was 0.38 ppm, demonstrating good stability. Based on the fluorescence spectroscopy and detection results, the DCC technology could completely eliminate the influence of a high S concentration on Cl detection.
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