On the Sensitivity of the Fluorescence EXAFS

Abstract
The sensitivity of the fluorescence EXAFS is discussed on the basis of a phenomenological theory and shown to be estimated by a parameter defined by absorption coefficients. Measurements of the fluorescence EXAFS and of the transmission EXAFS are performed on Fe, Cr, and Ni contained in stainless steel SUS 304 with different ratios. Both theoretical and experimental results exhibit a high sensitivity of the fluorescence EXAFS for a dilute component less than about 10%.