X-ray absorption spectroscopy (XAS) is an important characterization method but has been carried out mostly at large facilities, limiting the power as a routine characterization for scientific purposes. Therefore, a lot of effort has been put in developing laboratory XAS using x-ray tubes and other sources. Novel compact x-ray sources based on inverse Compton scattering […]

The study of extraterrestrial samples returned from the Moon, asteroids, and via meteorites has the potential to inform problems relating to the oxidation states of multivalent cations and the distribution of oxygen in our Solar System. For more than 25 years, our group has worked to develop XAS methods for analyzing the partial pressure of […]

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 […]

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 […]

The presentation will be at 9 am Seattle (Los Angeles) time (UTC-7). To join this meeting, use the Zoom links as sent by Jerry Seidler

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 […]

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

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