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X-ray absorption spectroscopy
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<p>X-ray <a href="/facts/Absorption_spectroscopy/GH7RC14D">absorption spectroscopy</a> (XAS) is a set of advanced techniques used for probing the local environment of matter at atomic level and its electronic structure. The experiments require access to <a href="/facts/Synchrotron_radiation/mTsSKmRz">synchrotron radiation</a> facilities for their intense and tunable <a href="/facts/X-ray/wseP79cN">X-ray</a> beams. Samples can be in the gas phase, solutions, or solids. </p>