Výsledky vyhledávání - "Jahrman, Evan P."

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Laboratory-based X-ray Absorption Spectroscopy on a Working Pouch Cell Battery at Industrially-Relevant Charging Rates

Autor: Jahrman, Evan P., Pellerin, Lisa A., Ditter, Alexander S., Bradshaw, Liam R., Fister, Timothy T., Polzin, Bryant J., Trask, Steven E., Dunlop, Alison R., Seidler, Gerald T.

Li-ion battery (LIB) research has continuing importance for the entire range of applications from consumer products to vehicle electrification and grid stabilization. In many cases, standard electrochemical methods only provide an overall voltage or

Externí odkaz: http://arxiv.org/abs/1905.10435

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Vacuum Formed Temporary Spherical and Toroidal Bent Crystal Analyzers for High Resolution X-ray Spectroscopy

Autor: Jahrman, Evan P., Holden, William M., Ditter, Alexander S., Kozimor, Stosh A., Kihara, Scott L., Seidler, Gerald T.

We demonstrate that vacuum forming of 10-cm diameter silicon wafers of various crystallographic orientations under an x-ray permeable, flexible window can easily generate spherically bent crystal analyzers (SBCA) and toroidally bent crystal analyzers

Externí odkaz: http://arxiv.org/abs/1809.05162

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An Improved Laboratory-Based XAFS and XES Spectrometer for Analytical Applications in Materials Chemistry Research

Autor: Jahrman, Evan P., Holden, William M., Ditter, Alex S., Mortensen, Devon R., Seidler, Gerald T., Fister, Timothy T., Kozimor, Stosh A., Piper, Louis F. J., Rana, Jatinkumar, Hyatt, Neil C., Stennett, Martin C.

X-ray absorption fine structure (XAFS) and x-ray emission spectroscopy (XES) are advanced x-ray spectroscopies that impact a wide range of disciplines. However, unlike the majority of other spectroscopic methods, XAFS and XES are accompanied by an un

Externí odkaz: http://arxiv.org/abs/1807.08059

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Double-Ionization Satellites in the X-ray Emission Spectrum of Ni Metal

Autor: Valenza, Ryan A., Jahrman, Evan P., Kas, Joshua J., Seidler, Gerald T.

Publikováno v: Phys. Rev. A 96, 032504 (2017)

We report measurements of the nonresonant x-ray emission spectroscopy (XES) from Ni metal in an energy range spanning the K_beta, valence-to-core, and double-ionization (DI) satellites that appear beyond the single-particle Fermi level. We make speci

Externí odkaz: http://arxiv.org/abs/1705.07326

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