The method of extraction of subspectra with appreciably different values of hyperfine interaction parameters from Mössbauer spectra

✍ Scribed by O.M. Nemtsova

• Publisher: Elsevier Science
• Year: 2006
• Tongue: English
• Weight: 412 KB
• Volume: 244
• Category: Article
• ISSN: 0168-583X
• DOI: 10.1016/j.nimb.2005.10.018

✦ Synopsis

The task of Mo ¨ssbauer spectra processing of complex locally inhomogeneous or multi-phase systems is to reveal subspectral contributions with appreciably different values of hyperfine interaction parameters (HFI) in them. A universal method of processing such spectra is suggested which allows to extract the probability density distribution (PDD) of HFI parameters corresponding to the subspectra with essentially different parameters values. The basis of the method is Tikhonov's regularization method with selection for each subspectrum its own value of the regularization parameter. The universal application of the method is demonstrated in the examples of processing real spectra with different sets of subspectral contributions.