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Microscopy and Microanalysis Research Group

Performs research and develops metrology to advance, promote and ensure robust and quantitative microscopy and microanalysis to address stakeholder needs in diverse areas of materials science. Electron, ion, and photon interactions with matter are used to enable the compositional, structural, and morphological characterization of materials from the mesoscale to the atomic scale.

Activities

Microplastic and Nanoplastic Metrology

Ongoing
The mission of the Micro and Nanoplastic (MNP) Metrology Project is to assist regulators in assessing the human health and environmental risks associated with

Publications

Multi-code Benchmark on Ti K-edge X-ray Absorption Spectra of Ti-O Compounds

Author(s)
Fanchen Meng, Benedikt Maurer, Fabian Peschel, Sencer Selcuk, Xiaohui Qu, Mark S Hybertsen, Christian Vorwerk, Claudia Draxl, John Vinson, Deyu Lu
X-ray absorption spectroscopy (XAS) is an element-specific materials characterization technique that is sensitive to structural and electronic properties. First

EDFAS FA TECHNOLOGY ROADMAP DIE-LEVEL ROADMAP COUNCIL (DLRC) POST-ISOLATION DOMAIN TECHNICAL REPORT - JAN 2023

Author(s)
Vinod Narang, Zhang Chuan, David Su, Phil Kaszuba, Steven Herschbein, Alan Street, Eckhard Langer, Martin von Haartman, Yu Zhu, Baohua Niu, Erwin Hendarto, Bryan Tracy, Jochonia Nxumalo, Rik Otte, Keana C. K. Scott
Semiconductor technologies are advancing at a rapid pace, with ongoing developments in logic and memory scaling, the introduction of new materials and

Tracking Active Phase Behavior on Boron Nitride during the Oxidative Dehydrogenation of Propane Using Operando X-Ray Raman Spectroscopy

Author(s)
Melissa Cendejas, Oscar Paredes Mellone, Unni Kurumbail, Zisheng Zhang, Jacob Jansen, Faysal Ibrahim, Son Dong, John Vinson, Anastassia Alexandrova, Dimosthenis Sokaras, Simon Bare, Ive Hermans
Hexagonal boron nitride (hBN) is a highly selective catalyst for the oxidative dehydrogenation of propane (ODHP) to propylene. Using a variety of ex situ

Software

NIST DTSA-II

NIST DTSA-II builds on the best available algorithms in the literature to simulate, quantify and plan energy dispersive x-ray analysis measurements.

OCEAN

OCEAN is a versatile package for calculating both optical/UV and core-edge spectroscopy. It is a first-principles code based on both ground-state density

Tools and Instruments

Microcalorimeter Detector

The NIST transition edge sensor microcalorimeter is energy dispersive x-ray spectrometer capable of ~5 eV resolution over a range of energies from hundreds to

X-Ray Diffractometer

The Bruker D8 defractometer is a general purpose X-ray diffraction system. The instrument features easy reconfiguration of the X-ray optics for a variety of

Awards

2022 Bronze Medal Award

Dr. Meisenkothen is honored for the development of standards-based techniques for atom probe tomography. Application of these techniques

News and Updates

Contacts

Group Leader

Office Manager

Group Safety Representative