Projects/Programs

Displaying 1 - 6 of 6

Basic Metrology: Dose/Dose-Rate Effects in Alanine Dosimetry

Ongoing

Check standards are used by the NIST Radiation Physics Division to monitor the performance of the alanine dosimetry system which is central to its high-dose transfer dosimetry service. These measurements are performed to confirm the operational readiness of the calibration curve. Deviations from the

Basic Metrology: Theoretical Dosimetry and Radiation-Transport Calculations

Ongoing

Monte Carlo simulation of radiation transport is an accurate tool for design, optimization and insight in situations both accessible and inaccessible to measurement. The Dosimetry Group applies these simulations to problems in radiation metrology, protection, therapy and processing. Our programs

Medical (Archive): Small-field Therapy Dosimetry Studies Using Alanine/EPR

Completed

Developments in radiotherapy have significantly increased the use of small fields in stereotactic procedures and IMRT fields composed of small fields. Ionization chambers are not always suitable where situations of high dose gradients, time-dose variance, and non-uniform beam distributions are

Multiscale structure and dynamics in advanced technological materials

Ongoing

New technologies increasingly harness materials phenomena that operate across many length-scales: e.g., in selective gas adsorption, additive manufacturing, new alloy designs, or advanced concretes. To overcome technology barriers, it is no longer sufficient just to characterize the materials

Photonic Dosimetry

Ongoing

With this effort, NIST is responding to industry needs for traceable, measurement solutions that can resolve spatial variations of absorbed dose at the level of individual components on a silicon wafer or bacteria on surgical instruments. Presently, there is only limited traceability to national

Radioanalytical Metrology

Ongoing

The Group engages in a wide range of methods applicable to the detection and characterization of nuclear materials. The work can benefit environmental studies, waste remediation, naturally occurring radioactivity detection and characterization and general radioanalytical metrology. Expertise in

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Ionizing radiation metrology

Projects/Programs