Radionuclide Monitoring

For the quality control program of an international network of radionuclide laboratories, ISTI designed, built, and delivered a web-based system for statistical evaluation of data from laboratory intercomparison exercises (proficiency test exercises). This web-based system reports the evaluation results.

ISTI developed software that automatically processes and interactively reviews radionuclide spectra. The application’s emphasis is on handling a high daily spectra throughput with minimal effort to facilitate manual spectra and performance review for peaks close to the detection limit.

ISTI developed Geant4-based software to simulate how high-purity Germanium (HPGe) radiation detectors respond. It performs efficiency calibration based on detector and source geometry and helps optimize detector models by comparing simulations with experimental results. The software calculates coincidence correction factors for any nuclide and can simulate measurements of sources with various radioisotope compositions. The software also simulates the response of beta-gamma coincidence detectors.

ISTI develops software to support software operations in a complex setup composed of field operations and laboratory measurements. The software ensures standardization of processes, supports quality control, tracks the sample chain of custody, ensures traceability of results, enables to control the measurement process and equipment and supports interpretation of measurement results.