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Math Programs & Projects

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Calibration of Low-Energy Photon Brachytherapy Sources
Last Updated Date: 02/27/2013

Small radioactive "seed" sources used in prostate brachytherapy, containing the radionuclide 103 Pd, 125 I, or 131 Cs, are calibrated in terms of … more

NIST Work in Support of the Navy Dosimetry Program
Last Updated Date: 02/27/2013

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

Traceability for Industrial Irradiator
Last Updated Date: 02/26/2013

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

High Rate Testing
Last Updated Date: 02/22/2013

This project involves sample geometry and metrological development for high rate servohydraulic testing. (Content to be uploaded soon) more

Testing of Radiation Detection Systems
Last Updated Date: 12/12/2012

NIST is working together with the Department of Homeland Security (DHS) Domestic Nuclear Detection Office (DNDO) in testing radiation detection … more

metRology Software Project
Last Updated Date: 11/14/2012

The goal of the metRology software project is to provide  a set of specialized functions for statistical metrology as a package for the R software … more

Bridge Safety
Last Updated Date: 11/13/2012

Our goal is to guide improvement in construction codes for both rehabilitated and new structures. Destructive and nondestructive data will allow … more

Virtual Cement and Concrete Testing Laboratory
Last Updated Date: 11/02/2012

The Virtual Cement and Concrete Testing Laboratory (VCCTL) project develops and integrates state-of-the-art computational materials science tools … more

Proficiency Test Results
Last Updated Date: 10/22/2012

Proficiency Test (PT) results are available at no cost to customers who have tested SRMs 2092, 2096, and 2098.   A PT result serves as a means to … more

Thermodynamic & Kinetic Data for Sustainable Energy
Last Updated Date: 10/05/2012

Industry needs thermodynamic and kinetic data for the development of new materials for sustainable energy applications; expanded and new databases … more

Standard Reference Fluid Measurements
Last Updated Date: 10/05/2012

Property measurements of the very highest accuracies are important for developing the thermodynamic and transport property models for working … more

Working/Functional Fluids
Last Updated Date: 10/05/2012

The conversion of primary energy (e.g. heat generated by the combustion of a fuel) into useful work most often involves a working fluid operating … more

Evaluation of the Extent of Electron Scattering in a Low Vacuum Scanning Electron Microscope
Last Updated Date: 10/02/2012

Low vacuum scanning electron microscopes utilize gas molecules in the specimen chamber to neutralize the specimen charging from the impinging … more

DTSA-II Reinvention of a Classic
Last Updated Date: 10/02/2012

The original NBS/NIH DTSA (Desktop Spectrum Analyzer) software was widely used in the x-ray microanalysis research community. The combination of … more

Analysis of 3D Elemental Mapping Artifacts in Biological Specimens using Monte Carlo Simulation
Last Updated Date: 10/02/2012

We performed Monte Carlo simulation to demonstrate the feasibility of using the focused ion beam based X-ray microanalysis technique (FIB-EDS) for … more

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