Abstract

The design and construction of a new two-crystal x-ray spectrometer are described together with the observed Mg Kα, Al Kα, Si Kα, S Kα, and Cu Kα₁ spectra. The spectrometer is designed for x-ray fluorescence analysis and has a wide scanning range (2° to 146° 2θ) under vacuum. Excellent reproducibility of 0.4 s in are is attainable, which makes possible the observation of chemical shifts in x-ray spectra. Magnesium Kα was found to be influenced by the coordination number, proving that the spectrometer is useful for chemical state analysis.

A High-Vacuum X-Ray Spectrometer

Manne Siegbahn and Robert Thoræus
J. Opt. Soc. Am. 13(2) 235-242 (1926)

Conical Focusing Crystal Spectrometers for Cosmic X-Ray Astronomy

B. E. Woodgate, T. Lowinger, and M. Schneider
Appl. Opt. 12(11) 2759-2764 (1973)

Vacuum-free x-ray source based on ultrashort laser irradiation of solids

Bixue Hou, James Easter, Aghapi Mordovanakis Karl Krushelnick, and John A. Nees
Opt. Express 16(22) 17695-17705 (2008)

Robust retrieval of material chemical states in X-ray microspectroscopy

Ting Wang, Xiaotong Wu, Jizhou Li, and Chao Wang
Opt. Express 31(25) 42524-42538 (2023)

Study of the X Rays Produced by a Vacuum Spark

Leonard Cohen, Uri Feldman, Marvin Swartz, and J. H. Underwood
J. Opt. Soc. Am. 58(6) 843-846 (1968)