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Physics

Radiation

Projects/Programs

Keyword

Organizational Unit

Medical: Calibrated Phantoms for Monitoring PET and SPECT Scanner Performance in Clinical Trials

Ongoing

The interpretation of quantitative imaging data obtained from Positron Emission Tomography (PET) and Single-Photon Emission Computed Tomography (SPECT) studies

Medical: Characterization of Dosimeters Used in Computed Tomography

Completed

In an effort to both reduce and improve the monitoring of radiation dose delivered to patients during computed tomography (CT) procedures, the Dosimetry Group

Medical: Standards for Clinical Radionuclide Calibrators

Ongoing

NIST maintains a collection of dose calibrators and develops and reports on secondary activity standards for imaging and therapeutic nuclides.

New Reference Standards for Digital Mammography

Ongoing

Reference radiation beams using a tungsten target and silver, rhodium, molybdenum and aluminum filters at 20 kVp to 50 kVp were developed to model digital

Dosimetry_ResearchandMetrology_PhotonAbsorbedDose_pic_Tosh

Photon Absorbed-Dose-to-Water Primary Standards

Ongoing

Computational and experimental studies to obtain correction factors for heat defect, heat transfer and scattering/perturbation for the water calorimeter in both

Photonic Dosimetry

Ongoing

As part of the NIST on a Chip program, the Photonic Dosimetry project is developing in-situ sub-micrometer ionizing-radiation dosimetry and calorimetry leading

Radiation Protection: Support of the Navy Dosimetry Program

Ongoing

The U.S. Navy uses thermoluminescent dosimeters (TLDs) to monitor personnel for radiation exposure.

Radioanalytical Metrology

Ongoing

Security: Air-Kerma Measurements in High Energy X-ray Beams

Completed

Cargo-inspection systems employ high-energy x-ray beams from accelerators. These systems are designed to detect potential threats that may be present in cargo

Security (archive): X-ray Systems for Cargo and Vehicle Inspection Systems

Completed

The Dosimetry Group provides support to the Department of Homeland Security (DHS) in their evaluation of cargo and vehicle inspection systems. Our support for

Security: Nuclear Forensics Reference Material (RM) Program

Ongoing

The Countering Weapons of Mass Destruction Office CWMD, within U.S. Department of Homeland Security (DHS), is mandated to enhance the U.S. Government's

Security: Standards Development for Detection of Illicit Trafficking of Radioactive

Ongoing

The National Institute of Standard and Technology (NIST) is working in the development of ANSI/IEEE and IEC standards for the detection of illicit trafficking

Traceability for Industrial Irradiators: Design of the Applied Irradiation Manufacturing Standards (AIMS) Facility

Ongoing

U.S. manufacturers have contended for decades that traceability to national standards for industrial irradiation applications is best achieved by services based

Transfer and working standard radiometers and photometers

Ongoing

To decrease the large measurement-uncertainty gap between cryogenic radiometer measurements (such as those made by the NIST Primary optical watt radiometer) and

Ultrafast Molecular Switch Dynamics Examined by Mid-Infrared Femtosecond Spectroscopy (Archived)

Completed

Ultrashort mid-infrared laser pulses are used to observe fast molecular and photochemical reaction processes occurring in the condensed phase. We have developed

X-ray computed tomography (CT)

Ongoing

Current work in x-ray computed tomography centers on diffraction effects in micro CT and computed tomography of integrated circuit interconnects.

NIST Headquarters
-Creating Helpful Incentives to Produce Semiconductors for America (CHIPS)
--CHIPS Program Office
---CHIPS Program Headquarters
----CHIPS Program Headquarters - HQ
----Opportunity & Inclusion Group
---External & Government Affairs Division
----External & Government Affairs – HQ
---Investments Division
----Investments Division – HQ
---Operations Office
----Operations Office – HQ
---Risk Management Division
----Risk Management – HQ
---Strategy, Technology & Policy Division
----Strategy, Technology & Policy – HQ
--CHIPS Research & Development Program Office
---CHIPS Research & Development Program Headquarters Division
----CHIPS Research & Development Program Headquarters – HQ
----Integration & Policy Office
----Outreach & Partnerships Office
---External R&D Partnerships Division
----External R&D Partnerships – HQ
----National Advanced Packaging Manufacturing Program Group
----National Semiconductor Technology Center Group
---Industrial Advisory Committee
----Industrial Advisory Committee – HQ
---Semiconductor Manufacturing Institute Division
----Semiconductor Manufacturing Institute – HQ
---Semiconductor Metrology & Characterization Office
----Semiconductor Metrology & Characterization Office – HQ
-Management Resources
--Management Resources
---Associate Director for Management Resources
----Associate Director for Management Resources - HQ
---Business Operations Office
----Business Analytics Group
----Business Operations Office - HQ
----Customer Relationship Management Group
----Process Engineering Office
----Project Management Office
---Emergency Services Office
----Emergency Management, Preparedness and Coordination Group
----Emergency Services - HQ
----Fire Protection Group
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---Equal Employment Opportunity and Accessibility Office
----Equal Employment Opportunity and Accessibility - HQ
---NIST Research Library and Museum
----Research Library Group
----Digital Services and Publishing Group
----NIST Research Library and Museum - HQ
---Fabrication Technology Office
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---Boulder Design and Construction Division
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---Gaithersburg Design and Construction Division
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----Facilities Library, Archives, and As-Built (Gaithersburg) Group
----Construction Contract Management Group
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----Gaithersburg Design and Construction - HQ
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---Facilities Services Division
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----Policy and Compliance Group
----Reimbursable Agreements Coordination Office
---Grants Management Division
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----Acquisition Operations
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--Office of Information Systems Management
---Applications Systems Division
----Applications Systems - HQ
---Research Services Office
----Research Services Office - HQ
---Business Systems Division
----Business Systems Division - HQ
---Information Technology Security & Networking Division
----Information Technology Security & Networking - HQ
---Identity, Credential, and Access Management Division
----Identity, Credential, and Access Management - HQ
---Customer Access and Support Division
----Customer Access and Support - HQ
---Infrastructure Services Division
----Infrastructure Services Division - HQ
---Office of Information Systems Management
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---Innovation and Solutions Division
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---Platform Services Division
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--Office of Human Resources Management
---Learning and Organizational Development Division
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---Talent Acquisition Division
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---Workforce Analytics and Technology Division
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---Human Resources Management Office
----Human Resources Management Office - HQ
---Workforce Programs Division
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--Office of Safety, Health and Environment
---Office of Safety, Health and Environment
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---Gaithersburg Safety, Health and Environment Division
----Safety and Health Group
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----Fire and Facilities Safety Group
----Environmental Management Group
---Radiation Safety Division
----Radiation Facilities Group
----Program Development and Compliance Group
----Radiation Safety - HQ
---Boulder Safety, Health and Environment Division
----Boulder Safety, Health and Environment - HQ
--Office of Financial Resource Management
---Financial Systems and Reporting Division
----CBS Core Support Group
----CBS Feeder System Support Group
----Financial Systems and Reporting Division - HQ
----Financial Statements Group
----Data Control Group
----Reconciliations Group
---Office of Financial Resource Management
----Office of Financial Resource Management - HQ
----Internal Controls Management & Evaluation Office
----Enterprise Risk Management Office
---Finance Division
----Finance - HQ
----Financial Statements Group
----Data Control and Cost Execution Group
----Accounts Payable Purchase Orders, Grants & Foreign Payments
----Accounts Payable Contracts and Government Group
----Receivables Group
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----Travel Group
---Financial Operations Division
----Travel Group
----Agreements Group
----Accounts Receivable Group
----Accounts Payable II Group
----Financial Operations - HQ
----Accounts Payable Group
---Budget Division
----Technical and Extramural Programs Group
----Institutional Support and Facilities Group
----Budget - HQ
----Formulation and Financial Management Group
-Laboratory Programs
--Communications Technology Laboratory
---RF Technology Division
----High-Speed Waveform Metrology Group
----Superconductive Electronics Group
----Metrology for Wireless Systems Group
----Guided Wave Electromagnetics Group
----Electromagnetic Fields Group
----RF Technology Division - HQ
---Smart Connected Systems Division
----IoT Devices and Infrastructures Group
----Networked Control Systems Group
----Smart Connected Manufacturing Systems Group
----Smart Grid Group
----Transformational Networks and Services Group
---Spectrum Technology and Research Division
----Applied Systems Metrology Group
----Fiber Sources and Applications Group
----Shared Spectrum Metrology Group
----Spectrum Technology and Research – HQ
---Wireless Networks Division
----Internet Technologies Research Group
----Radio Access and Propagation Metrology Group
----Wireless Networks Division - HQ
----Wireless Systems Innovation and Performance Group
---Public Safety Communications Research Division
----Public Safety Communications Research Division - HQ
----Advanced Communications Research Group
----Network Operations Group
---Communications Technology Laboratory HQ
----Communications Technology Laboratory HQ Gp
----Boulder Laboratory Director Office
----Communication Test Coordination Office
--Engineering Laboratory
---Building Energy and Environment Division
----Building Energy and Environment - HQ
----Mechanical Systems and Controls Group
----Indoor Air Quality and Ventilation Group
----HVAC&R Equipment Performance Group
----Heat Transfer and Alternative Energy Systems Group
---Intelligent Systems Division
----Intelligent Systems - HQ
----Manipulation and Mobility Systems Group
----Cognition and Collaboration Systems Group
----Production Systems Group
----Sensing and Perception Systems Group
---Materials and Structural Systems Division
----Earthquake Engineering Group
----Infrastructure Materials Group
----Inorganic Materials Group
----Community Resilience Group
----Materials and Structural Systems - HQ
----Polymeric Materials Group
----Structures Group
---Engineering Laboratory Office
----Applied Economics Office
----Engineering Laboratory - HQ
----Engineering Laboratory Data, Security, Technology Group
---Fire Research Division
----National Fire Research Laboratory Group
----Wildland Urban Interface Fire Group
----Flammability Reduction Group
----Fire Research - HQ
----Engineered Fire Safety Group
----Fire Fighting Technology Group
---Systems Integration Division
----Life Cycle Engineering Group
----Process Engineering Group
----Information Modeling and Testing Group
----Systems Integration - HQ
--Information Technology Laboratory
---Applied Cybersecurity Division
----Applied Cybersecurity - HQ
----Cybersecurity and Privacy Applications Group
----National Cybersecurity Center of Excellence
----Trusted Identity Initiative Group
----NICE
---Computer Security Division
----Computer Security - HQ
----Cryptographic Technology Group
----Secure Systems and Applications Group
----Security Components and Mechanisms Group
----Security Test, Validation and Measurement Group
----Security Engineering and Risk Management Group
---Applied and Computational Mathematics Division
----Mathematical Software Group
----Mathematical Analysis and Modeling Group
----Computing and Communications Theory Group
----High Performance Computing and Visualization Group
----Applied and Computational Mathematics - HQ
---Statistical Engineering Division
----Applied and Computational Statistics Group
----Statistical Design, Analysis, and Modeling Group
----Statistical Engineering - HQ
---Software and Systems Division
----Systems Interoperability Group
----Software Quality Group
----Software and Systems - HQ
----Cyber Infrastructure Group
----Information Systems Group
---Information Access Division
----Information Access - HQ
----Image Group
----Multimodal Information Group
----Retrieval Group
----Visualization and Usability Group
---Information Technology Laboratory Office
----Office of Computational Science for Metrology
----Office of Emerging Technologies
----Office of IT Standardization
----Office of Government and Industrial Liaison
----Information Technology Laboratory Office - HQ
----Office of Chief Cybersecurity Advisor
--Laboratory Programs
---Research Protections Office
----Research Protections Office - HQ
---Standards Coordination Office
----International Standards Policy and Coordination Group
----Standards and Conformity Assessment Services Group
----Standards Coordination Office - HQ
----National Voluntary Laboratory Accreditation Program (NVLAP)
---Special Programs Office
----Special Programs Office-HQ
----Law Enforcement Standards Office
---Associate Director for Laboratory Programs
----Associate Director for Laboratory Programs - HQ
--Material Measurement Laboratory
---Office of Reference Materials
----Business and Quality Management Group
----Business Application Development, Support, and Security Group
----Sales and Customer Services Group
----Publication and Web Services Group
----Office of Reference Materials - HQ
----Materials and Physical Services Group
---Office of Data and Informatics
----Office of Data and Informatics - HQ
----Data Services Group
----Data Sciences Group
---Biosystems and Biomaterials Division
----Biomarker and Genomic Sciences Group
----Cellular Engineering Group
----Biomaterials Group
----Genome-Scale Measurements Group
----Complex Microbial Systems Group
----Cell Systems Science Group
----Biosystems and Biomaterials Division - HQ
---Chemical Sciences Division
----Biochemical and Exposure Science Group
----Chemical Informatics Group
----Optical Measurements Group
----Chemical Process and Nuclear Measurements Group
----Gas Sensing Metrology Group
----Inorganic Chemical Metrology Group
----Biospecimen Science Group
----Environmental Chemical Sciences Group
----Chemical Sciences Division - HQ
----Marine Biochemical Sciences Group
----Organic Chemical Metrology Group
---Biomolecular Measurement Division
----Biomolecular Structure and Function Group
----Mass Spectrometry Data Center Group
----Bioprocess Measurements Group
----Bioanalytical Science Group
----Biomolecular Measurement Division - HQ
----Applied Genetics Group
---Applied Chemicals and Materials Division
----Applied Chemicals and Materials Division - HQ
----Thermodynamics Research Center Group
----Thermophysical Properties of Fluids Group
----Nanoscale Reliability Group
----Fluid Characterization Group
----Fatigue and Fracture Group
---Materials Science and Engineering Division
----Thermodynamics and Kinetics Group
----Polymers Processing Group
----Mechanical Performance Group
----Polymers and Complex Fluids Group
----Materials Science and Engineering Division - HQ
----Functional Polymers Group
----Functional Nanostructured Materials Group
---Materials Measurement Science Division
----Security Technologies Group
----Surface and Trace Chemical Analysis Group
----Nanomechanical Properties Group
----Nano Materials Research Group
----Materials Structure and Data Group
----Microscopy and Microanalysis Research Group
----Synchrotron Science Group
----Materials Measurement Science Division - HQ
----Data and AI-Driven Materials Science Group
---Material Measurement Laboratory Office
----The Material Measurement Laboratory Office of Operations Group
----Material Measurement Laboratory - HQ
----Genome-Scale Measurement Group
--NIST Center for Neutron Research
---NIST Center for Neutron Research
----Research Facility Operations Group
----NIST Center for Neutron Research - HQ
----Reactor Operations and Engineering Group
----Neutron-Condensed Matter Science Group
--Physical Measurement Laboratory
---Microsystems and Nanotechnology Division
----Biophysical and Biomedical Measurement Group
----Microsystems and Nanotechnology - HQ
----Nanostructure Fabrication and Measurement Group
----Photonics and Optomechanics Group
---Time and Frequency Division
----Atomic Devices & Instrumentation Group
----Precision Photonic Synthesis Group
----Quantum & Nonlinear Nanophotonics Group
----Atomic Standards Group
----Ion Storage Group
----Neutral Atom Optical Clocks Group
----Time Realization and Distribution Group
----Phase Noise Metrology Group
----Time and Frequency - HQ
---Quantum Physics Division
----Quantum Physics - HQ
---Radiation Physics Division
----Dosimetry Group
----Radioactivity Group
----Radiation Physics - HQ
----Neutron Physics Group
---Sensor Science Division
----Fundamental Thermodynamics Group
----Ultraviolet Radiation Group
----Sensor Science - HQ
----Dimensional Metrology Group
----Temperature & Humidity Group
----Remote Sensing Group
----Optical Radiation Group
----Fluid Metrology Group
----Surface and Interface Metrology Group
---Applied Physics Division
----Advanced Microwave Photonics Group
----Spin Electronics Group
----Applied Physics - HQ
----Faint Photonics Group
----Quantitative Nanostructure Characterization Group
----Quantum Devices Group
----Molecular and Bio-Photonics Group
----Optoelectronic Manufacturing Group
----Magnetic Imaging Group
----Quantum Nanophotonics Group
----Sources and Detectors Group
---Quantum Measurement Division
----Quantum Optics Group
----Mass and Force Group
----Quantum Measurement - HQ
----Laser Cooling and Trapping Group
----Fundamental Electrical Measurements Group
----Applied Electrical Metrology Group
----Atomic Spectroscopy Group
---Quantum Sensors Division
----Device Fabrication Group
----Long Wavelength Sensors and Applications Group
----Quantum Calorimeters Group
----Quantum Electronics Group
----Quantum Processing Group
----Quantum Sensors Group
----Quantum Sensors – HQ
----Nanoscale Spin Dynamics Group
----Microfabrication Group
----Spin Electronics Group
----Magnetics Group
---Nanoscale Device Characterization Division
----Atom Scale Device Group
----Nanoscale Device Characterization Division - HQ
----Alternative Computing Group
----Nanoscale Spectroscopy Group
----Advanced Electronics Group
----Nanoscale Processes and Measurements Group
---Physical Measurement Laboratory Office
----Boulder Microfabrication Facility
----Physical Measurement Laboratory- HQ
----PML Information Office
----Center for Nanoscale Science and Technology
----Office of Weights and Measures
----Boulder Laboratory Director Office
-Innovation & Industry Services
--Office of Advanced Manufacturing
---Microelectronics Manufacturing Division
----Microelectronics Manufacturing – HQ
----Microelectronics Strategy and Enterprise Group
----Semiconductor Coordination Group
----Semiconductor Operations Group
----Workforce and Equity Development Group
---Office of Advanced Manufacturing
----Office of Advanced Manufacturing - HQ
---Partnerships and Outreach Division
----Communications and Marketing Group
----Education and Workforce Development Group
----Partnership Engagement Group
----Partnerships and Outreach – HQ
----Technology Hubs Development Group
---Policy and Strategy Division
----Analysis and Benchmarking Group
----Policy and Strategy – HQ
----Strategic Planning Group
---Program Operations Division
----Competitions Group
----Institute and Program Management Group
----Performance Management Group
----Program Operations - HQ
--Baldrige Performance Excellence Program
---Baldrige Performance Excellence Program Office
----Award Process Group
----Director's Office, Baldrige Performance Excellence Program
----Administrative Support/Electronic Information Group
----Outreach and Communications Group
----Publications Management Group
----Workforce Development Group
--Innovation & Industry Services
---Associate Director for Innovation & Industry Services
----Associate Director for Innovation & Industry Services - HQ
---Advanced Manufacturing Office
----Advanced Manufacturing Office - HQ
---Economic Analysis Office
----Economic Analysis Office - HQ
---Technology Partnerships Office
----Technology Partnerships Office - HQ
---Technology Innovation Program Office
----Technology Innovation Program Office - HQ
--Hollings Manufacturing Extension Partnership Program
---National Platforms Division
----National Platforms – HQ
----Network Knowledge Management Group
----Supply Chain Group
---National Programs Division
----National Programs- HQ
---Network Learning and Strategic Competitions Division
----Network Learning and Strategic Competitions - HQ
---Outreach and External Affairs Division
----Outreach and External Affairs – HQ
---Performance Evaluation and Economic Impacts Division
----Performance Evaluation and Economic Impacts - HQ
----Performance Metrics and Evaluation Group
---Regional and State Partnerships Division
----Regional Management Group
----Regional and State Partnerships - HQ
---Network Agreements Management Division
----Network Agreements Management - HQ
----Node B Group
----Node A Group
---Internal Operations Division
----Internal Operations – HQ
----Center Operations and Financial Management Group
---Extension Services Division
----Extension Services - HQ
---Hollings Manufacturing Extension Partnership Program Office
----Hollings Manufacturing Extension Partnership Program - HQ
-Director's Office
--Director's Office
---Diversity, Equity and Inclusivity Office
----Diversity, Equity and Inclusivity Office - HQ
---Ombuds Office
----Ombuds Office - HQ
---Public Affairs Office
----Media Liaison Group
----Video and Digital Media Production Group
----Public Affairs Office - HQ
----Internal Communications and Inquiries Group
----Conference Program and Audiovisual Services Group
----Boulder Meetings Support and Services Group
----Web Content Development Group
---Program Coordination Office
----Program Coordination Office - HQ
---Director's Office
----Director's Office - HQ
----Onboarding Group
---Congressional and Legislative Affairs Office
----Congressional and Legislative Affairs Office - HQ
---Human Subjects Protection Office
----Human Subjects Protection Office - HQ
---Management and Organization Office
----Management and Organization Office- HQ
---International and Academic Affairs Office
----International and Academic Affairs Office - HQ