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Synchrotron Science Group

The Synchrotron Science Group advances X-ray measurements of materials through NIST developed and operated beamlines at the National Synchrotron Light Source II (NSLS II). Measurements are developed to support collaborative projects across NIST and the NSLS II user community. The group advances this mission through a decades long strategic partnership with the Department of Energy and Brookhaven National Laboratory.

Central to the multi-decade NIST BNL strategic partnership in synchrotron technology, the Synchrotron Science Group develops state of-the-art synchrotron X-ray measurement technology around a core-competency in X-ray absorbance spectroscopy. The SSG develops instrumentation, methods, and analytical tools, to enable measurements of structure not attainable by other methods. Stationed at the National Synchrotron Light Source II (NSLS-II) at Brookhaven National Laboratory, the group provides timely access to X-ray facilities to support both NIST priority programs as well as the broader scientific community through the NSLS-II General User Program. Working closely with other units across NIST, new advances in instrumentation are connected to a broad range of NIST stakeholders. Primary examples are the development of the Resonant Soft X-ray Scattering instrument in close collaboration with the Materials Science and Engineering Division and the development of microcalorimeter detector technologies with the NIST Quantum Sensing Division. Outside partnerships have also been key to the technology transfer strategy, with a co-developed and operated end station in X-ray Diffraction with IBM, and imaging capabilities developed through two Small Business Innovation and Research Awards. Additional collaborations with industry such as Dow Chemical and SEMATECH are complemented with ongoing development with other agencies such as the Air Force Research Laboratory and Sandia National Laboratory. The group has been a world leader in the development of adsorbtion spectroscopy software, with world-wide adoption and high demand for online courses and workshops. The group features three main thrusts that all build on the core competency in absorbance spectrometry: adsorbance spectrometers, hyperspectral imaging, and resonant scattering and diffraction.

News and Updates

Projects and Programs

Synchrotron X-ray Absorbance Spectroscopy

A core competency of the NIST BNL strategic partnership, the Absorbance Spectroscopy effort in the Synchrotron Science Group seeks to develop measurements that

Synchrotron X-ray Spectroscopic Imaging

The Spectroscopic Imaging project develops hyperspectral imaging capabilities the probe the chemical, electronic, and physical structure in advanced materials.


Observation of a promethium complex in solution

Bruce D. Ravel, Darren Driscoll, Frankie White, SUBHAMAY PRAMANIK, Jeffrey Einkauf, Dmytro Bykov, Santanu Roy, Richard Mayes, Laetitia Delmau, Samantha Schrell, Thomas Dyke, April Miller, Matt Silveira, Silveira2 van Cleve, Roy Copping, Sandra Davern, Santa Jansone-Popova, Ilja Popovs, Alexander Ivanov
Lanthanide rare earth metals are ubiquitous in modern technologies, but we know little about chemistry of the 61st element, promethium (Pm), a lanthanide which

Structural Origin of Recovered Ferroelectricity in BaTiO3 Nanoparticles

Bruce D. Ravel, Trevor Tyson, Han Zhang, Sizhan Liu, SANJIT GHOSE, U.J. Idehenre, Yury Barnakov, S.A. Basun, D.R. Evans
Nanoscale BaTiO3 particles (10 nm) prepared by ball-milling a mixture of oleic acid and heptane have been reported to have an electric polarization several

Tools and Instruments



Group Leader

Office Manager