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arXiv · 2404.13916

Basis Function Dependence of Estimation Precision for Synchrotron-Radiation-Based Mössbauer Spectroscopy

Binsheu Shieh·Ryo Masuda·Satoshi Tsutsui·Shun Katakami·Kenji Nagata·Masaichiro Mizumaki·Masato Okada
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Abstract

Mössbauer spectroscopy is a technique employed to investigate the microscopic properties of materials using transitions between energy levels in the nuclei. Conventionally, in synchrotron-radiation-based Mössbauer spectroscopy, the measurement window is decided by the researcher heuristically, although this decision has a significant impact on the shape of the measurement spectra. In this paper, we propose a method for evaluating the precision of the spectral position by introducing Bayesian estimation. The proposed method makes it possible to select the best measurement window by calculating the precision of Mössbauer spectroscopy from the data. Based on the results, the precision of the Mössbauer center shifts improved by more than three times compared with the results achieved with the conventional simple fitting method using the Lorentzian function.

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Binsheu Shieh, Ryo Masuda, Satoshi Tsutsui, Shun Katakami, Kenji Nagata, Masaichiro Mizumaki, Masato Okada. 2024-04-22. Basis Function Dependence of Estimation Precision for Synchrotron-Radiation-Based Mössbauer Spectroscopy. https://doi.org/10.7566/jpsj.94.034702

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