Publications by authors named "Jordan D Noey"
Combining a traditional weather station with radiation monitors draws the public's attention to the magnitude of background radiation and its typical variation while providing early indications of unplanned radiological releases, such as nuclear power plant accidents or terrorist acts. Several networks of combined weather and radiation monitoring sensors exist, but these fail to be affordable for broad distribution. This work involves creating an affordable system to accumulate data from multiple locations into a single open-source database.
View Article and Find Full Text PDFIn medical physics, rigorous quality assurance and quality control protocols are vital for precise dose delivery applications. In many health physics applications, the allowable uncertainty for various processes is often greater than that of medical physics due to looser safety ties. This results in less demand for quality control and uncertainty analyses, since these may not be needed.
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- Charcoal canisters are commonly used for screening radon (222 Rn) levels, typically calibrated in controlled environmental chambers to ensure accuracy.
- This study compares calibrations from controlled environments with those from a less controlled basement setting, analyzing factors like exposure time and different calibration methods.
- Results indicate that the calibration accuracy of canisters remains within 10% after 2 days of exposure, suggesting that precise conditions aren't necessary for effective calibration, although further research on radon stability is recommended.
Article Synopsis
- - A new algorithm for mapping and locating radiation sources was developed using non-linear least squares methods, showing successful results in a controlled 3D space with over 80% accuracy across various noise conditions.
- - The algorithm was tested experimentally for radioactive decontamination and locating a lost Wi-Fi router, with the radioactive source being located within 7 cm in 79.3% of cases and the Wi-Fi router within 7 m in 57.9% of tests.
- - This method requires less data than traditional surveys, showing promise for practical applications like drone-assisted source retrieval and mapping of Wi-Fi routers, though further improvements and failure modes are still to be addressed.
The Rexon UL-320 FDR is a novel resistive-heating thermoluminescent dosimeter reader with a unique temperature measurement system and an automated dosimeter processing mechanism. The removable contact heating planchets have black-body adhesives on the back for capturing temperature information with infrared sensors. A heating cycle feedback loop ensures accurate, precise, and reproducible heating sequences.
View Article and Find Full Text PDFStrict quality assurance programs are required for many radiological applications, but these seldom exist for verifying dosimetry calibration sources. After initial characterization of a dosimetry calibration facility, quality control procedures are recommended to ensure the early detection of any changes or malfunctions. These also result in refined knowledge about average dose rate and experimental variations in dose delivery.
View Article and Find Full Text PDFA large volume gamma spectrometer was designed and constructed to analyze foodstuffs and environmental samples having low radionuclide concentrations. This system uses eight 11-cm × 42.5-cm × 5.
View Article and Find Full Text PDFExperiments were performed with 30 11 cm × 42.5 cm × 5.5 cm NaI(Tl) detectors to better understand their positional response.
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