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A bilateral comparison was conducted between NIST and the International Atomic Energy Agency (IAEA) to support international efforts for harmonizing radiation
Comparisons for the national standards of air kerma from therapy level and radiation protection gamma-ray beams were conducted by the NIST and the Bureau
To establish equivalency of activity standards with national metrology institutes (NMIs) around the world and support their declarations of calibration and
The Radiological Traceability Program (RTP) is a Proficiency Testing (PT) program that establishes traceability for the Radiological and Environmental Sciences
To advance the development of nanometer-scale devices and systems, there is a need to image and characterize nanostructured materials very precisely and
Scientists and engineers currently have a growing library of synthetic microscale and nanoscale swimmers which affect the hydrodynamics of their surroundings in
We investigate collisions of atoms in either micro-Kelvin gasses or in nano-colliders, where two small atomic clouds are made to collide with adjustable energy
Commercial metering systems are ubiquitous in the commercial marketplace (to dispense liquified products, from gas and water to food products and agricultural
Optical systems that operate at wavelengths in the ultraviolet (UV) and extreme-ultraviolet (EUV) are susceptible to degradation by a number of different
A scanning probe microscope (SPM) in its simplest form uses a fine probe tip in proximity to a sample surface to measure a particular physical property. SPMs
Nano and atomic scale theory of the electronic, optical and mechanical properties of ultrasmall structures, such as semiconductor quantum dots and dopants in Si
High performance optical radiometers with selected optical detectors are being designed, characterized, and calibrated in the Optical Radiation Group for the
The Sensor Readout Project within the Quantum Electronics Group leverages the sensitivity of superconducting quantum interference devices (SQUIDs), low-noise
Until recently calibrations of tristimulus colorimeters were performed against lamp standards. However, the uncertainty of these source-based calibrations
We are developing a method for accurately quantifying greenhouse gas emissions from natural and anthropogenic sources and sinks to meet the requirements for
We want to quantify the breakdown of geometrical optics when computing the throughput of optical systems for the purpose of calculating "diffraction corrections
The Dimensional Measurement Services (DMS) project delivers unique high-accuracy length based calibrations that are essential to global trade, supports basic
One of the major obstacles to incorporating nanotechnology into everyday products is the difficulty of making nanoscale structures inexpensively over large
Over the past decade nanoscale science has produced varied and fascinating nanostructures with an extraordinary range of interesting and useful properties. In
The purpose of the N42 data format is to facilitate manufacturer-independent transfer of information from radiation measurement instruments for use in homeland
The purpose of the IEC 62755 standard N42 data format is to facilitate manufacturer-independent transfer of information from radiation measurement instruments
NIST is a key player in the development of ANSI/IEEE, IEC and Technical Capability standards for the detection of illicit trafficking of radioactive materials