The technique has been widely used in various fields such as chemistry, biology, physics, and materials science. The book provides a comprehensive overview of the current state of XAS, its applications, and recent advances in the field. It covers topics such as the principles of XAS, instrumentation, data analysis, and applications in materials science, biomolecules, and environmental science. The book also discusses the challenges and limitations of XAS and future directions in the field. The book is written at a level accessible to graduate students and researchers in the field of materials science, chemistry, biology, and physics. It assumes some prior knowledge of spectroscopy and analytical techniques, but it does not require extensive knowledge of XAS. The book's goal is to provide a comprehensive overview of XAS, its applications, and recent advances in the field, as well as to highlight the challenges and limitations of the technique and future directions for researchers in the field. Title: Xray Absorption Spectroscopy: A Comprehensive Overview Introduction: Xray absorption spectroscopy (XAS) is an analytical technique that uses X-rays to probe the electronic structure of materials. This powerful tool has been widely used in various fields such as chemistry, biology, physics, and materials science.

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