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Chemistry Programs & Projects

(showing 1 - 15 of 308)
In Situ Characterization of Nanoscale Gas-Solid Interactions by TEM
Last Updated Date: 07/24/2015

Observing and measuring the dynamic changes that take place at the nanometer scale during the synthesis and operation of active nanostructures is … more

Fluid Suspensions & Emulsions
Last Updated Date: 07/23/2015

We are trying to help take colloidal rheology understanding beyond uniformly charged spheres to particles with more complex interactions, through … more

Precision Measurement of the Branching Ratio and Energy Spectrum of Radiative Neutron Decay
Last Updated Date: 07/21/2015

Neutron beta-decay is typically considered as a three-body process, but it is always accompanied by inner-bremsstrahlung soft photons, n → e − + p … more

X-ray Detection with Large Area Avalanche Photodiodes for the Neutron Radiative Decay Experiment
Last Updated Date: 07/21/2015

Operation of the second neutron radiative decay experiment has been completed. In this experiment we observed the emission of photons that … more

Pushing and Understanding the Limits of Spin-Exchange Optical Pumping of He-3
Last Updated Date: 07/21/2015

Neutron spin filters based on polarized 3He rely on the strong spin dependence of the absorption of neutrons by 3He gas.

Frequency Comb Spectroscopy
Last Updated Date: 07/17/2015

We use frequency combs based on ultrafast mode-locked lasers to perform precision spectroscopy in the near- and mid-infrared domains, for rapid, … more

Microresonator Device Research
Last Updated Date: 07/16/2015

With micro-resonators (fabricated in house or by collaborators) we are developing microcombs, integrated reference cavities and low-noise laser … more

Californium Neutron Irradiation Facility
Last Updated Date: 07/16/2015

NIST maintains the Californium Neutron Irradiation Facility (CNIF), which is an exposure facility providing fast neutrons for irradiations … more

Calcium Optical Beam Clock
Last Updated Date: 07/15/2015

A simple, compact alternative to the highest performing optical standards, the Ca clock uses a thermal beam of neutral atoms with one or two … more

Optical Cavities for Laser Stabilization
Last Updated Date: 07/15/2015

Optical cavities are essential elements of optical atomic clocks, as they serve to pre-stabilize the clock laser. Our Group is currently … more

Working Group
Last Updated Date: 07/12/2015

The US TAG assumes a mirror structure to ISO/TC 276. As each member country has one vote within ISO/TC 276, the US vote is determined by the … more

Understanding Flow Meters
Last Updated Date: 07/09/2015

Accurate flow measurements are needed for test fluids, temperatures, pressures, flows, and installation conditions that differ from those used … more

Air Speed Metrology
Last Updated Date: 07/09/2015

NIST’s versatile wind tunnel is used to calibrate customers’ air speed sensors and to conduct research on the design of novel anemometers, the … more

Smoke Stack Simulator
Last Updated Date: 07/08/2015

Today, inconsistencies between measured CO 2 emissions and emissions calculated from coal consumption are on the order of 10% to 20%. Either a … more

Accelerator Facilities
Last Updated Date: 07/06/2015

The Radiation Physics Division's accelerator facilities continue to support a broad range of research efforts in the areas of industrial and … more

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