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Physics Programs & Projects

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A Study of the Irradiation-Temperature Coefficient for Alanine Film and Pellet Dosimeters at Elevated Temperature
Last Updated Date: 03/01/2013

Correcting the response of a dosimeter for the average temperature during irradiation processing improves the accuracy of the dose measurement.  more

High-Dose Dosimetry
Last Updated Date: 03/01/2013

The activities described here support the application of high-dose, high-energy ionizing radiation for a variety of industrial processes. … more

Electron-Beam Irradiation of Solar Cells
Last Updated Date: 02/27/2013

The Dosimetry Group operates a system capable of performing electron beam processing, which consists of a Van de Graaff electron accelerator and a … more

Theoretical Dosimetry and Radiation-Transport Calculations
Last Updated Date: 02/27/2013

The fundamental photon and charged particle interaction data and the radiation transport methods, pioneered and developed at NIST to calculate the … more

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

Characterization of Dosimeters Used in Computed Tomography
Last Updated Date: 02/27/2013

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

Enhanced X-Ray Imaging
Last Updated Date: 02/26/2013

This project pursues enhanced x-ray image acquisition and analysis methods that are applicable to, for example, security and medical applications … more

High-Resolution X-ray Spectroscopy
Last Updated Date: 02/26/2013

We are pursuing a program of x-ray spectroscopy of highly-charged ions and plasmas using custom-designed and constructed curved crystal … more

Remote Sensing Methods for Imaging Dose to Water
Last Updated Date: 02/26/2013

Calorimetry based upon remote sensing of the temperature field in an irradiated volume would offer distinct advantages over the present approach, … more

Photon and Charged Particle Data Center
Last Updated Date: 02/26/2013

The Photon and Charged Particle Data Center has long been an international source of photon and charged particle reference data that have been … more

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

Quantum Computation and Simulation with Neutral Atoms
Last Updated Date: 01/29/2013

Quantum information processing seeks to use the features of quantum physics to accomplish otherwise intractable computational tasks. The two main … more

NIST Frequency Measurement and Analysis Service (FMAS)
Last Updated Date: 12/19/2012

The NIST Frequency Measurement and Analysis Service (FMAS) makes it easy to measure and calibrate any quartz, rubidium, cesium, or hydrogen maser … 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

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