Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Physical Measurement Laboratory

Radiation Physics Division

News and Updates

Keyword

Topic Area

Not Schrödinger's Cat: NIST PET Phantoms Bring New Accuracy to Medical Scans

July 28, 2015

Teaming with a medical equipment company, researchers at the National Institute of Standards and Technology (NIST) have demonstrated the first calibration

Hand holding a flexible organic material

NIST Shows Organic Solar Industry Something New Under the Sun

July 16, 2015

Hunting for the best material from which to build organic solar cells can be like seeking the proverbial haystack needle, but now scientists at the National

NIST Gets New Angle on X-Ray Measurements

March 9, 2015

Criminal justice, cosmology and computer manufacturing may not look to have much in common, but these and many other disparate fields all depend on sensitive

Computing for Better Radiation Therapy

February 19, 2015

Doctors devising a plan of attack on a tumor may one day gain another tactical advantage thanks to a series of sophisticated calculations proposed by PML's

Hidden Uncertainties Uncovered in Nuclear Forensic Measurement

February 2, 2015

A little detective work by nuclear physicists has uncovered hidden uncertainties in a popular method for precisely measuring radioactive nuclides, often used to

Prototype for First Traceable PET-MR Phantom

January 23, 2015

As cancer diagnostic tools, a new class of imagers – which combines positron-emission tomography (PET) with magnetic resonance imaging (MR or MRI) – has shown

Ultrasonic Thermometers for Medical Dosimetry

December 16, 2014

PML researchers are exploring whether ultrasound can be used as a faster, more efficient way to take three-dimensional images of radiation dose profiles in

NIST Helps NTSB Solve 787 Battery Fire Puzzle

December 10, 2014

In January, 2013, an auxiliary power unit battery aboard a Japan Airlines Boeing 787 "Dreamliner" experienced a "thermal runaway event" resulting in fire and

Better Cargo Inspection Standards at Border Crossings

December 2, 2014

As part of an Interagency Agreement between NIST and the Department of Homeland Security (DHS), PML's Radiation Physics Division recently completed a series of

Calibrating Cancer Radiotherapy Beams Using Light and Sound

September 17, 2014

Doctors shrink tumors with radiation therapy, but a badly calibrated beam can cause serious complications. Scientists in NIST's Radiation Physics Division in

Polonium's Most Stable Isotope Gets Revised Half-Life Measurement

September 9, 2014

Scientists at the National Institute of Standards and Technology (NIST) have determined* that polonium-209, the longest-lived isotope of this radioactive heavy

A phantom (life-size dummy) in the scanner

Backscatter Body Scan Redux

July 21, 2014

Airline passengers have already said bon voyage to the controversial backscatter x-ray security scanners, pulled from U.S. airports in 2013 over concerns about

Toward New Precision in Measuring the Neutron Lifetime

February 3, 2014

A team of PML scientists and collaborators* has achieved a five-fold reduction in the dominant uncertainty in an experiment that measured the mean lifetime of

Spraying Mosquitoes . . . with Gamma Rays

August 16, 2013

A recently announced malaria vaccine – found to be 100 % effective in a small human sample – was years in the making, and its creators had to overcome many

New NIST Standard Reference Material to Help Calibrate Hospital CAT Scanners

July 23, 2013

Scientists at the National Institute of Standards and Technology (NIST) have developed a new standard reference material (SRM), the first such measurement tool

Luggage Screening Standards Prove Their Value

June 5, 2013

Every month, between 50 and 70 million passengers travel through U.S. airports, toting more than 30 million pieces of luggage destined for aircraft cargo holds

A Whole New Angle on Neutron Spin Analysis

January 18, 2013

For most Americans, neutron spin-polarization filter cells are a relatively rare topic of conversation. Yet these exotic devices are essential to instruments

Using Calorimetry to Estimate Absorbed Dose from CT Scans

December 21, 2012

In the United States, about 80 million x-ray computed tomography (CT) scans are made every year – 7 million of them on children – according to the American

Shaking Up Biomolecules with Light

September 28, 2012

In living organisms, biomolecules such as proteins are constantly in complex motion, bending and flexing in different ways at different points. Each molecule

PML Plays a Central Role in Standards Agreement by 22 Federal Agencies

September 27, 2012

PML researchers played a central role in the establishment of new testing and evaluation (T&E) standards for radiation and nuclear detectors about to be adopted

NIST Effort Could Improve High-Tech Medical Scanners

June 12, 2012

A powerful color-based imaging technique is making the jump from remote sensing to the operating room—and a team of scientists* at the National Institute of

New Detector Design Improves Gamma-Ray Measurements

April 6, 2012

In the pursuit of precision measurements, nothing is simple, even when the apparatus employed appears to be utterly uncomplicated. An instructive case in point

NIST Measurements May Help Optimize Organic Solar Cells

March 6, 2012

Organic solar cells may be a step closer to market because of measurements taken at the National Institute of Standards and Technology (NIST) and the U.S. Naval

NIST Sensor Improvement Brings Analysis Method into Mainstream

December 20, 2011

An advance in sensor design by researchers at the National Institute of Standards and Technology (NIST) and the University of Waterloo's Institute of Quantum

Sharpened Focus: Improving the Numbers, Utility of Medical Imaging

April 12, 2011

The idea of probing the body's interior with radiation stretches back to experiments with X rays in the 1800s, but more than a century later, images taken with

Advanced communications
-Open Radio Access Network (Open-RAN)
-Quantum communications
-Spectrum sharing
-Wireless (RF)
Bioscience
-Bioeconomy
--Biological data
-Bioimaging
-Bioinformatics
-Biomanufacturing
-Biomaterials
-Biometrology
-Biosecurity
--Biosurveillance
--Genomic cybersecurity
--Nucleic acid sequence screening
-Cell measurements
-Engineering / synthetic biology
--Biofabrication
--Cell-free systems
--Genome engineering
--Protein engineering
-Gene delivery systems
-Genome editing
-Genomics
-Glycomics
-Metabolomics
-Microbial measurements
-Proteomics
-Transcriptomics
Buildings and Construction
-Building codes and standards
-Building control systems
-Building damage and repair
-Building economics
-Building materials
-Energy efficiency
-Heating, ventilation and air conditioning equipment
-Indoor air quality
-Structural engineering
-Thermal comfort
Chemistry
-Analytical chemistry
-Chemical engineering and processing
-Chemical thermodynamics and chemical properties
-Molecular characterization
-Theoretical chemistry and modeling
-Thermochemical properties
Electronics
-Electromagnetics
-Flexible electronics
-Magnetoelectronics
-Optoelectronics
-Organic electronics
-Semiconductors
-Sensors
-Superconducting electronics
Energy
-Alternative energy
-Conventional energy
-Electric power / smart grid
-Fuels
Environment
-Air / water / soil quality
-Climate Measurements
-Environmental health
-Greenhouse gas measurements
-Marine science
-Sustainability
Fire
-Fire detection
-Fire dynamics and science
-Fire fighting
-Fire modeling
-Fire risk reduction
-Materials flammability
-Structural fire resistance
-Wildland urban interface fire
Forensic Science
-Digital evidence
-Drugs and toxicology
-Firearms and toolmarks
-Forensic biometrics
-Forensic genetics
-Trace evidence
Health
-Biopharmaceuticals
-Cell and gene therapy
-Clinical diagnostics
--Cancer
--Medical imaging
-Food and nutrition
-Human microbiome
-Precision medicine
-Regenerative medicine and advanced therapy
--Flow cytometry
Information technology
-Artificial intelligence
--AI measurement and evaluation
--Applied AI
--Fundamental AI
--Hardware for AI
--Machine learning
--Trustworthy and responsible AI
-Biometrics
-Cloud computing and virtualization
-Complex systems
-Computational science
-Conformance testing
-Cyber-physical systems
--Smart cities
-Cybersecurity
--Cryptography
--Cybersecurity education and workforce development
--Cybersecurity measurement
--Identity and access management
--Privacy engineering
--Risk management
--Securing emerging technologies
--Trustworthy networks
--Trustworthy platforms
-Data and informatics
--Human language technology
--Information retrieval
--Natural language processing
-Federal information processing standards (FIPS)
-Health IT
-Internet of Things (IoT)
-Interoperability testing
-Location based services
-Mobile
-Networking
--Mobile and wireless networking
--Network management and monitoring
--Network modeling and analysis
--Network security and robustness
--Network test and measurement
--Next generation networks
--Protocol design and standardization
--Software defined and virtual networks
-Privacy
-Software research
--Software testing
-Usability and human factors
--Accessibility
-Video analytics
-Virtual / augmented reality
-Visualization research
-Voting systems
Infrastructure
Manufacturing
-Additive manufacturing
-Factory communications
-Factory operations planning and control
-Interoperability in manufacturing
-Machining
-Manufacturing economics
-Manufacturing quality assurance
-Manufacturing systems design and analysis
-Monitoring, diagnostics and prognostics
-Process improvement
-Process measurement and control
-Product data
-Robotics in manufacturing
--Agility and adaptability
--Collaborative robots
--Dexterous grasping
--Manipulation
--Mobility and industrial autonomous vehicles
--Navigation / actuation / control
--Sensing and perception
-Supply chain
-Sustainable manufacturing
-Systems engineering
-Systems integration
-Technology commercialization
Materials
-Ceramics
-Composites
-Concrete / cement
-Materials characterization
--Composition and structure
--Mechanical properties
--Thermal properties
-Metals
-Modeling and computational material science
-Polymers
-Superconductors
Mathematics and statistics
-Experiment design
-Image and signal processing
-Modeling and simulation research
-Numerical methods and software
-Statistical analysis
-Uncertainty quantification
Metrology
-Amount of substance
-Dimensional metrology
-Electrical / electromagnetic metrology
-Flow metrology and rheology
-Force metrology
-Humidity metrology
-Ionizing radiation metrology
-Mass metrology
-Metric
-Optical / photometry / laser metrology
-Pressure and vacuum metrology
-Thermometry metrology
-Time and frequency metrology
-Weights and measures
Nanotechnology
-Nanobiotechnology
-Nanochemistry
-Nanoelectronics
-Nanofabrication / manufacturing
--Lithography
--Self-assembly
-Nanofluidics
-Nanomagnetics
-Nanomaterials
-Nanomechanics
-Nanometrology
-Nanophotonics
-Nanophysics
-Nanoplasmonics
Neutron research
Performance excellence
-Assessment tools and services
-Baldrige award
-Baldrige examiners
-Baldrige Framework and Criteria
-Best practices
-Leadership development
Physics
-Atomic / molecular / quantum
-Biological physics
-Condensed matter
-Electron physics
-Magnetics
-Nuclear physics
-Optical physics and communications
-Quantum information science
-Radiation
-Spectroscopy
-Thermodynamics
-Time and frequency
Public safety
-Chemical / Biological / Radiological / Nuclear / Explosives (CBRNE)
-First responder preparedness
-Law enforcement
-Public safety communications research
-Response robots
Resilience
-Community resilience
--Recovery
--Resilience metrics
-Disaster and failure studies
-Earthquake risk reduction
-Resilience economics
-Resilient materials
-Windstorm impact reduction
Standards
-Accreditation
-Calibration services
-Conformity assessment
-Documentary standards
-Frameworks
-Quality assurance
-Reference data
-Reference instruments
-Reference materials
-Standards education
Technology transfer
Transportation
-Aerospace
-Automotive