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Matthew Marcus: Soft x-ray spectromicroscopy in extraterrestrial materials

Extraterrestrial materials such as meteorites and interplanetary dust particles are often very complex and non-uniform, with diverse species within a small sample. In some cases, especially for the products of sample-return missions, the available samples are small and precious. X-ray micro- and nano-spectroscopy are ideal complements to other methods such as TEM and nano-SIMS. In […]

Andy Aquila: The Tender X-ray Imaging (TXI) instrument at the LCLS

This presentation will take place at 6 pm Monday, Seattle (Los Angeles) time / 9 am Tuesday, Beijing time using Zoom. For the Zoom link and password, visit  https://tinyurl.com/XAFStalks  within 30 minutes of the beginning of the presentation. The Linac Coherent Light Source (LCLS) upgrade to a high repetition source offers new avenues to pump/probe […]

Thomas Penfold: Towards the Rapid Analysis of XANES for Complex Systems using Deep Neural Networks

X-ray spectroscopy delivers strong impact across the physical and biological sciences by providing end users with highly detailed information about the electronic and geometric structure of matter. To decode this information in challenging cases, e.g., in operando catalysts, batteries, and temporally evolving systems , advanced theoretical calculations are necessary. The complexity and resource requirements often […]

Liang Zhang: In situ/operando XAS for energy storage materials

Rechargeable batteries (Li-ion batteries and beyond) have received extensive attention as powerful boosters for the development of human society. However, the application of rechargeable batteries is still hindered by low energy density, serious voltage hysteresis, and long-term degradation. Therefore, it is of great importance for understanding the underlying redox reaction and capacity fading mechanisms to […]

Susan Cumberland: Determining uranium geochemistry within natural organic-matter rich environments using XAS and XFM techniques

  Analysing metals within environmental samples using wet chemistry can pose analytical problems, particularly with carbon-based and solid samples. X-ray absorbance spectroscopy (XAS) analysis is one alternative approach, able to target elements of interest whilst avoiding matrix interference from low mass elements (e.g. carbon). One element that is particularly suited to XAS is uranium (U), […]

Kristjan Kunnus: Probing of coherent nuclear wavepacket dynamics with X-ray emission and scattering in solvated Fe photosensitizers

Spin and oxidation state sensitivity of 3d metal K-edge X-ray Emission Spectroscopy (XES) has been utilized in recent years to successfully probe the ultrafast spin transition and electron transfer processes in femtosecond time-resolved experiments . In this talk I will present the results from a combined time-resolved Fe Kα and Kβ XES and X-ray Solution […]

Helio Tolentino and Others: Spectroscopy and New Scientific Opportunities at SIRIUS, part I

The presentation will be at 9 am Seattle (Los Angeles) time (UTC-7). To join this meeting, use the link: https://washington.zoom.us/j/99543082366   Sirius is one of the first fourth-generation Synchrotron Light Sources to be built in the world and will have the highest brightness among the light sources in the energy range that goes from soft x-rays to […]

Santiago Figueroa: Spectroscopy and New Scientific Opportunities at SIRIUS, part II

Thursday September 17: 9 am Seattle, 12 noon NY, 5 pm London, 7 pm Moscow link: https://washington.zoom.us/j/91967881684    Sirius is one of the first fourth-generation Synchrotron Light Sources to be built in the world and will have the highest brightness among the light sources in the energy range that goes from soft x-rays to hard X-rays with […]

ESRF Webinar: Marius Retegan: Computational Spectroscopy in the Age of the Extremely Brilliant Source:  From Punch Cards to Artificial Intelligence

Computational Spectroscopy in the Age of the Extremely Brilliant Source:  From Punch Cards to Artificial Intelligence Marius Retegan, ESRF scientist Please click the link below to join the webinar: https://esrf.zoom.us/j/92127181949?pwd=bDlpOCtMVDEreDFPSTd0aE14Ymh2Zz09 Passcode: F5i@Cu Webinar ID: 921 2718 1949