A miniaturized piezoelectric Mössbauer spectrometer with feedback control
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1.
California Institute of Technology
Abstract
A Mössbauer spectrometer was built and evaluated using an amplified piezoelectric actuator under feedback control for the Doppler velocity drive. The actuator was driven with a quadratic displacement waveform, giving a linear velocity profile. The optimization of the piezoelectric Doppler drive under feedback control was performed with measurements from a laser Doppler vibrometer. ⁵⁷Fe Mössbauer spectra of α-iron in transmission geometry show minimal peak distortions. The performance of this piezoelectric Doppler drive makes Mössbauer spectrometry possible in applications requiring small size, mass, and low cost.
Copyright and License
© 2023 Author(s). Published under an exclusive license by AIP Publishing.
Acknowledgement
This work was supported by the U.S. National Science Foundation under Grant No. 1904714 and by the Foster and Coco Stanback Space Innovation Fund supported hardware procurement. P.G. acknowledges the support of the NSF Graduate Research Fellowship under Grant No. DGE-1745301. V.S. and R.T. acknowledge the support of the Jet Propulsion Laboratory, which is operated by the California Institute of Technology under contract with the National Aeronautics and Space Administration (Grant No. 80NM0018D0004).
Contributions
P. Guzman: Conceptualization (equal); Formal analysis (lead); Investigation (lead); Validation (lead); Visualization (equal); Writing – original draft (lead); Writing – review & editing (equal). C. M. Quine: Conceptualization (equal); Investigation (equal); Software (equal); Writing – review & editing (equal). S. H. Lohaus: Conceptualization (equal); Writing – review & editing (equal). L. Schul: Software (equal). R. Toda: Conceptualization (equal); Investigation (equal); Writing – review & editing (equal). V. J. Scott: Conceptualization (lead); Funding acquisition (equal); Project administration (equal); Resources (equal); Supervision (equal); Writing – review & editing (equal). B. Fultz: Conceptualization (lead); Funding acquisition (equal); Project administration (equal); Resources (equal); Supervision (equal); Writing – review & editing (equal).
Data Availability
The data that supports the findings of this study are available from the corresponding author upon reasonable request.
Conflict of Interest
The authors have no conflicts to disclose.
Additional Information
The supplementary material contains the fit to the α-iron Mössbauer spectrum with the program Fit;o). The Mössbauer spectra of α-iron at different velocity ranges are also included.
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Additional details
- ISSN
- 1089-7623
- National Science Foundation
- 1904714
- Foster and Coco Stanback Space Innovation Fund
- National Science Foundation Graduate Research Fellowship
- DGE-1745301
- National Aeronautics and Space Administration
- 80NM0018D0004