Robert Bruce Hayes
Also known as: Rob Hayes
retrospective dosimetry, nuclear criticality, ALARA, radiological air monitoring, nuclear emergency response, consequence assessment, electron paramagnetic resonance, luminescence dosimetry
Works (116)
Updated: December 21st, 2024 10:45
2024 journal article
A preliminary NASA compliant conformal coating for optimized space radiation shielding configurations and its mass attenuation coefficients
PROGRESS IN NUCLEAR ENERGY, 169.
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: April 1, 2024
2024 article
Demonstrating a Quantitative and Systematic Approach to Reducing Excess Conservativism in Nuclear Criticality Safety Analyses
Holyk, S. A., & Hayes, R. B. (2024, April 8). NUCLEAR SCIENCE AND ENGINEERING, Vol. 4.
author keywords: Nuclear criticality safety; excess conservatism; Safety Analysis Report; TRUPACT-II
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: April 15, 2024
2024 journal article
Optimization of pure elemental and oxide-based shielding materials for cost
PROGRESS IN NUCLEAR ENERGY, 177.
author keywords: MicroShield; Shielding; Optimization; Radiation protection; Cost
Sources: ORCID, Web Of Science, NC State University Libraries
Added: October 1, 2024
2023 journal article
A thermal natural uranium breeder reactor for large and small applications with passive safeguard designs
PROGRESS IN NUCLEAR ENERGY, 163.
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: July 2, 2023
2023 journal article
An Assessment of Heterogeneous Effects on System Reactivity for Criticality Safety Analyses with LEU+ and HALEU Materials
Nuclear Technology, 209(6), 835–856.
author keywords: LEU plus; HALEU; heterogeneous; SCALE; transportation
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Sources: ORCID, Web Of Science, NC State University Libraries, Crossref
Added: February 16, 2023
2023 journal article
Dose Estimation for Extravasation of 177Lu, 99mTc, and 18F
Health Physics, 124(3), 217–220.
author keywords: dose; absorbed; dosimetry; internal; Monte Carlo; radiation risk
MeSH headings : Radiation Dosage; Radiopharmaceuticals; Radioisotopes; Radiometry / methods
TL;DR:
To understand whether a radiopharmaceutical extravasation could exceed the US Nuclear Regulatory Commission’s medical event reporting limit of 0.5 Sv dose equivalent to tissue or levels at which tissue damage would be anticipated, the GATE Monte Carlo simulation software was used to calculate self-dose to spherical volumes containing uniformly distributed amounts of common radiophARMaceutical isotopes.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: February 27, 2023
2023 journal article
EVALUATION OF EXISTING PUBLIC DOSE LIMITS APPLIED TO RECREATIONAL SPACEFLIGHT
Radiation Protection Dosimetry, 199(5), 482–489.
MeSH headings : Humans; Space Flight; Astronauts
TL;DR:
The necessity to come to a collective decision on dose limits and radiation safety procedures for recreational spaceflight is urgent and imperative to maintain ALARA goals, as existing federal dose limits to the public cannot be adequately or universally applied to the space tourism sector.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
8. Decent Work and Economic Growth
(OpenAlex)
Sources: ORCID, Web Of Science, NC State University Libraries, Crossref
Added: February 21, 2023
2023 journal article
Nuclear waste Educator's workshop: What and how do we teach about nuclear waste?
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 270.
author keywords: Nuclear waste management and disposal; Interdisciplinary research and education
open access via doi.org (publisher)
UN Sustainable Development Goal Categories
12. Responsible Consumption and Production
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: October 23, 2023
2022 journal article
A Novel Approach for Detection of Illicit Nuclear Activities Using Optically Stimulated Dosimetry
ESARDA Bulletin - The International Journal of Nuclear Safeguards and Non-Proliferation, 64(1), 64–74.
Source: NC State University Libraries
Added: July 22, 2023
2022 journal article
A Standard Model Approach to Inflation
Journal of Modern Physics, 13(02), 113–121.
UN Sustainable Development Goal Categories
10. Reduced Inequalities
(OpenAlex)
Sources: Crossref, NC State University Libraries
Added: July 4, 2023
2022 journal article
A systems approach to a resilience assessment for agility
Systems Science & Control Engineering, 10(1), 955–964.
author keywords: Analysis; artificial intelligence; energy and power systems; machine learning; systems
Sources: ORCID, Web Of Science, NC State University Libraries, Crossref
Added: December 17, 2022
2022 journal article
EPR Investigation of Temporal and Thermal Stability of Irradiated Sweeteners
HEALTH PHYSICS, 123(6), 476–485.
author keywords: dosimetry; gamma; dose assessment; gamma radiation; radiation dose
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: November 21, 2022
2022 journal article
Harnessing the Environment to Identify Nuclear Processes: Biologically-Mediated Approaches
Countering WMD Journal, 24, 60–85.
Source: NC State University Libraries
Added: July 22, 2023
2022 journal article
Harnessing the Environment to Identify Nuclear Processes: I. Biological Markers to Assess Environmental Exposure
Countering WMD Journal, 24, 93–119.
Source: NC State University Libraries
Added: July 22, 2023
2022 journal article
Neutron activation analysis of novel space shielding for terrestrial applications
NUCLEAR ENGINEERING AND DESIGN, 398.
author keywords: Metal oxide; Conformal coating; Activation analysis; Radiological waste; Nuclear waste; Waste disposal
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: October 31, 2022
2022 journal article
Nuclear energy myths versus facts support it's expanded use - a review
Cleaner Energy Systems, 2, 100009.
Source: ORCID
Added: June 12, 2022
2021 journal article
A Standard Model Neutrino Mechanism
Journal of Modern Physics, 12(11), 1475–1482.
Sources: Crossref, NC State University Libraries
Added: June 19, 2023
2021 journal article
An effectively nondestructive method for dose assessment from accidental exposure using PCBs from electronic watches
RADIATION MEASUREMENTS, 148.
author keywords: Nondestructive method; Absorbed dose; Emergency response; Alanine dosimeter; Luminescence dosimeter
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: October 12, 2021
2021 journal article
The ubiquity of nuclear fission reactors throughout time and space
PHYSICS AND CHEMISTRY OF THE EARTH, 125.
UN Sustainable Development Goal Categories
12. Responsible Consumption and Production
(Web of Science)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: November 18, 2021
2021 journal article
Thermoluminescence and optically stimulated luminescence response of Al2O3 coatings deposited by mist-chemical vapor deposition
Radiation Physics and Chemistry, 191, 109860.
author keywords: Thermoluminescence; Optically stimulated luminescence; Mist-chemical vapor deposition; Retrospective dosimetry; Aluminum oxide
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: ORCID, Web Of Science, NC State University Libraries, Crossref
Added: October 30, 2021
2020 journal article
A Novel Approach to Realistic Conservatism in Nuclear Criticality Safety Analysis
Nuclear Technology, 207(3), 460–467.
author keywords: Nuclear criticality safety; probabilistic safety analysis; regulatory compliance; qualitative risk assessment
TL;DR:
This technical note discusses various options for approaching a defendable realistic technical basis for safety analysis by associating probabilities with conservative assumptions.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 10, 2020
2020 journal article
Ionizing Radiation Shielding Properties of Metal Oxide Impregnated Conformal Coatings
Radiation Physics and Chemistry, 171, 108685.
author keywords: Metal oxide; Conformal coating; Radiation shielding; Mass percent; Particulate size
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: July 27, 2020
2020 journal article
Low level EPR dosimetry of a commercial sugar
Applied Radiation and Isotopes, 157, 109038.
author keywords: Electron paramagnetic resonance; Dosimetry; Sugar; Radiological emergency response; Nuclear forensics; EPR
TL;DR:
This work demonstrated the combined utility of empty tube subtraction, over-modulation, native signal subtraction and spectral filtration in low level dosimetry using commercial sugar samples.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: March 30, 2020
2020 journal article
Opportunities for a graded approach in air sample assay and triage
ESARDA Bulletin, 60, 43–52.
Source: NC State University Libraries
Added: July 22, 2023
2020 journal article
Retrospective characterization of special nuclear material in time and space
Radiation Measurements, 133, 106301.
author keywords: Nuclear nonproliferation; Optically stimulated luminescent dosimeter; Retrospective imaging; Gamma camera; Nuclear safeguards
UN Sustainable Development Goal Categories
13. Climate Action
(Web of Science)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: March 14, 2020
2020 journal article
Three-dimensional positional analysis of weapons grade plutonium using gridded arrays of dosimeters
ESARDA Bulletin, 61.
Source: NC State University Libraries
Added: July 22, 2023
2020 magazine article
Unaccounted for uncertainties in radioaerosol assays as used in plume reconstruction or treaty verification
Hayes, R. B. (2020, June). ESARDA Bulletin, 60, 53–59.
Source: NC State University Libraries
Added: August 1, 2023
2019 journal article
Incremental Gains in Transuranic Activity Analysis in Air Samples for Radiological Emergency Response
Nuclear Technology, 205(9), 1219–1235.
author keywords: Air sampling; emergency response; transuranic activity; radon progeny discrimination
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: September 9, 2019
2019 journal article
Initial TL/OSL/EPR Considerations for commercial diatomaceous earth in retrospective dosimetry and dating
Radiation Protection Dosimetry, 1-10.
MeSH headings : Diatomaceous Earth / analysis; Diatomaceous Earth / radiation effects; Electron Spin Resonance Spectroscopy / instrumentation; Electron Spin Resonance Spectroscopy / methods; Materials Testing / methods; Radiation Dosage; Retrospective Studies; Thermoluminescent Dosimetry / instrumentation; Thermoluminescent Dosimetry / methods
TL;DR:
The thermoluminescence (TL) and optically stimulated luminescence properties of commercially obtained diatomaceous earth was investigated and suggested some mechanisms explaining the sensitization process in geological silicate materials utilized in dosimetry and dating.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: ORCID, Crossref, NC State University Libraries
Added: November 15, 2019
2019 magazine article
Nuclear forensics via the electronic properties of particulate and samples
Hayes, R. B., O'Mara, R. P., & Abdelrahman, F. (2019, December). ESARDA Bulletin, 59, 21–28.
Source: NC State University Libraries
Added: August 1, 2023
2019 conference paper
Opportunities for a graded approach in air sample assay and triage
41st ESARDA Annual Meeting symposium on safeguards and nuclear material management. Presented at the 41st ESARDA Annual Meeting, Stressa, Italy.
Event: 41st ESARDA Annual Meeting at Stressa, Italy on May 14-16, 2019
Sources: NC State University Libraries, NC State University Libraries
Added: December 16, 2019
2019 journal article
Retrospective uranium enrichment potential using solid state dosimetry techniques on ubiquitous building materials
Journal of Nuclear Material Management, 47(2), 4–12.
Source: NC State University Libraries
Added: November 6, 2020
2019 journal article
Validation of a rapid, conservative transuranic alpha activity estimation method in air samples
Journal of Radiological Protection, 39(3), 749–765.
Contributors: S. Cope n & n
author keywords: air monitoring; radon progeny; radiological emergency response; alpha particles
MeSH headings : Air Pollutants, Radioactive / analysis; Filtration / instrumentation; North Carolina; Plutonium / analysis; Radiation Monitoring / methods; Radon Daughters / analysis; Uranium / analysis
TL;DR:
Validation of this method to produce rapid, conservative and defensible transuranic alpha activity estimates was accomplished through introduction of surrogate transuric activity, 239Pu and 230Th check sources, along with the naturally occurring radioactive progeny from an environmental air filter.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: July 15, 2019
2018 standard
American National Standard Instrumentation and Systems for Monitoring Airborne Radioactivity
Sources: Crossref, NC State University Libraries
Added: November 16, 2019
2018 journal article
Dose Deposition Profiles in Untreated Brick Material
HEALTH PHYSICS, 114(4), 414–420.
author keywords: accident analysis; accidents; nuclear; dosimetry; dosimetry; thermoluminescent
MeSH headings : Construction Materials / analysis; Radiation Dosage; Radioactive Hazard Release; Retrospective Studies; Thermoluminescent Dosimetry / methods
TL;DR:
It was found that by using thermoluminescence responses, the dose deposition profile of a brick sample could be reconstructed without any chemical treatment, and has the potential to greatly expedite dose reconstructions in the wake of nuclear accidents.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018
2018 conference paper
Grain size and density separation effects on luminescence dose estimates using brick material
Embedded Topical Meeting - Advances in Nuclear Nonproliferation Technology and Policy Conference 2018, ANTPC 2018, 192–195. http://www.scopus.com/inward/record.url?eid=2-s2.0-85067121319&partnerID=MN8TOARS
Source: ORCID
Added: November 15, 2019
2018 personal communication
LNT May Be Lethal but ALARA Is Inherently Useful
Hayes, R. B. (2018, September).
MeSH headings : Humans; Radiation, Ionizing
TL;DR:
The authors pointed out the dangers from radiophobia but did not elucidate how this is such a drastic departure from their recognition of no medical effects being observed at low and nominal doses as there are clearly acutely severe psychosocial and psychosomatic effects.
(via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: November 7, 2018
2018 journal article
Preliminary work toward a transuranic activity estimation method for rapid discrimination of anthropogenic from TRU in alpha air samples
Health Physics (New York, N.Y.), 114(4), 319–327.
Source: NC State University Libraries
Added: August 6, 2018
2018 journal article
Retrospective dosimetry at the natural background level with commercial surface mount resistors
Radiation Measurements, 121, 42–48.
author keywords: Thermoluminescence; Emergency response; Dosimetry; Personnel monitoring
TL;DR:
A single aliquot regenerative (SAR) protocol utilizing thermoluminescence demonstrated precise and accurate retrospective dosimetry capability using common commercial surface mount resistors at levels able to discriminate the age of resistors based on background dose accrual.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
10. Reduced Inequalities
(OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: February 25, 2019
2018 journal article
Total Ambient Dose Equivalent Buildup Factors for Portland Concrete
HEALTH PHYSICS, 115(3), 324–337.
author keywords: algorithm; Monte Carlo; neutron dosimetry; shielding
MeSH headings : Construction Materials; Gamma Rays; Machine Learning; Monte Carlo Method; Neutrons; Radiation Dosage; Radiation Protection; Software
TL;DR:
The credible dispersion in expected resultant buildup factors was also calculated by conducting a very rudimentary sensitivity analysis, varying the water content in the first case and then varying the amount of aggregate, to provide a model based on the machine-learning technique called the support vector regression method in the calculation of concrete buildup factors.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: October 19, 2018
2018 journal article
Total ambient dose equivalent buildup factor determination for NBS04 concrete
Health Physics, 114(6), 569–581.
author keywords: algorithm; Monte Carlo; neutron dosimetry; shielding
MeSH headings : Air Pollutants, Radioactive / analysis; Construction Materials / analysis; Gamma Rays; Monte Carlo Method; Neutrons; Radiation Dosage; Radiation Protection / methods
TL;DR:
Support vector regression, a machine learning technique, has been engaged to make a model based on the calculated data for calculation of the buildup factors, which can predict most of the data with 20% relative error.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: ORCID, NC State University Libraries, NC State University Libraries
Added: August 6, 2018
2017 journal article
A standard model approach to dark energy and inflation
Journal of Cosmology, 26, 14850–14859. http://journalofcosmology.com/JOC26/Hayes.pdf
Source: NC State University Libraries
Added: November 6, 2020
2017 chapter
Applications of Radioisotopes
In Encyclopedia of Sustainability Science and Technology.
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018
2017 article
RECONSTRUCTION OFA RADIOLOGICAL RELEASE USING AEROSOL SAMPLING
Hayes, R. B. (2017, April). HEALTH PHYSICS, Vol. 112, pp. 326–337.
author keywords: accident analysis; accidents; nuclear; accidents; power reactor; air sampling
MeSH headings : Aerosols / analysis; Air Pollutants, Radioactive / analysis; Computer Simulation; Models, Statistical; New Mexico; Particle Size; Radiation Dosage; Radiation Monitoring / methods; Radioactive Hazard Release / statistics & numerical data; Radioactive Waste / statistics & numerical data; Radioisotopes / analysis; Reproducibility of Results; Sample Size; Sensitivity and Specificity
TL;DR:
It is shown here that the limiting factor in detection is not counting statistics of the activity but rather the statistics for aerosols having small sample population numbers due to the lognormal distribution of particle radii.
(via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018
2017 journal article
RETROSPECTIVE IMAGING AND CHARACTERIZATION OF NUCLEAR MATERIAL
HEALTH PHYSICS, 113(2), 91–101.
author keywords: detector; thermoluminescent; dose; dosimetry; gamma; thermoluminescence dosimetry
MeSH headings : Luminescent Measurements / methods; Magnetic Resonance Imaging / methods; Molecular Imaging / methods; Radiation Dosage; Radiation Protection / methods; Radioisotopes / analysis; Radiometry / methods; Reproducibility of Results; Retrospective Studies; Sensitivity and Specificity; Technology Assessment, Biomedical
TL;DR:
The current work and results show how to characterize nuclear materials after they have been removed from an area leaving no chemical trace, and a new approach is demonstrated to be fully capable of providing both previous source spatial distribution and emission energy grouping.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
7. Affordable and Clean Energy
(OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018
2017 journal article
Some Mathematical and Geophysical Considerations in Radioisotope Dating Applications
NUCLEAR TECHNOLOGY, 197(2), 209–218.
author keywords: Isotopic mass diffusion; isochron; radioisotopic dating
UN Sustainable Development Goal Categories
13. Climate Action
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018
2016 journal article
CONSEQUENCE ASSESSMENT OF THE WIPP RADIOLOGICAL RELEASE FROM FEBRUARY 2014
HEALTH PHYSICS, 110(4), 342–360.
author keywords: accident analysis; accidents; nuclear; air sampling; dose assessment
MeSH headings : Atmosphere / chemistry; Environmental Monitoring; Humans; New Mexico; Radiation Dosage; Radiation Monitoring; Radioactive Hazard Release; Radioactive Waste; Radioisotopes / analysis; United States; Weather
TL;DR:
Using modeling based on measured effluent activity, onsite dose estimates were calculated and later measured to be less than 0,1 mSv from intakes of radioactivity, which was consistent with air samples being taken at those dwellings during the release.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018
2016 journal article
Contributions of Various Radiological Sources to Background in a Suburban Environment
HEALTH PHYSICS, 111(5), S193–S199.
author keywords: operational topics; dose assessment; environmental assessment; radiation; background
TL;DR:
The relative contributions from natural radioactivity such as potassium in foods and common household items are shown to be easily distinguished from background using standard handheld instrumentation when applied in a systematic, methodological manner.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2016 journal article
IMPLEMENTATION OF A PORTABLE HPGE FOR FIELD CONTAMINATION ASSAY
HEALTH PHYSICS, 110(6), 571–579.
author keywords: Am-241; accidents; nuclear; contamination; waste disposal
MeSH headings : Air Pollutants, Radioactive / analysis; Air Pollution, Indoor / analysis; Computer-Aided Design; Equipment Design; Equipment Failure Analysis; Germanium / radiation effects; Radiation Monitoring / instrumentation; Radioactive Pollutants / analysis; Reproducibility of Results; Sensitivity and Specificity
TL;DR:
Results indicate that contamination levels of activity in the exhaust shaft at the Waste Isolation Pilot Plant can be assayed to within a factor of 2.5, which would constitute a legal environmental release if unfiltered ventilation of the underground facility were used.
(via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018
2015 journal article
Operational Check Source Recalibration
Health Physics, 109, S156–S161.
MeSH headings : Algorithms; Calibration / standards; Internationality; Radiation Dosage; Radioisotopes / analysis; Radioisotopes / standards; Radiometry / methods; Radiometry / standards; Reference Values; Sensitivity and Specificity; Specimen Handling / standards
TL;DR:
A formal protocol whereby a segregated source is used for later quality control trending and recalibration of operational sources is described, which is of potential use for any quality radioactive assay program where multiple sources may be in use such that long term loss in activity is possible.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
2014 journal article
Using Isotopic Ratios for Discrimination of Environmental Anthropogenic Radioactivity
Health Physics, 107(4), 277–291.
author keywords: aerosols; air sampling; modeling; environmental; waste management
MeSH headings : Air Pollutants, Radioactive / analysis; Environmental Monitoring / methods; Mining; Plutonium / analysis; Radioactive Waste; Soil Pollutants, Radioactive / analysis
TL;DR:
By characterizing both the credible range of 137Cs/239,240Pu ratios from the environment and those known to exist in the waste, a rigorous test criteria is attained and a gross assay of total TRU radioactivity pulled into the mine over time from global fallout is carried out.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
2013 journal article
Nuclear criticality as a contributor to gamma ray burst events
Astrophys Space Sci, 345(1), 147–154.
author keywords: Gamma ray bursts; Nuclear criticality; Energy spectrum
Source: ORCID
Added: November 15, 2019
2013 book
Nuclear science and technology made so simple, it belongs in your newspaper – popular science topics for the layman
https://www.amazon.com/Nuclear-Science-Technology-belongs-newspaper-ebook/dp/B00CC2KB5S
Source: NC State University Libraries
Added: November 6, 2020
2011 journal article
Special issue on the 16th biennial topical meeting of the radiation protection and shielding division
Nuclear Technology, 175(1), 1.
Source: ORCID
Added: November 15, 2019
2010 article
Emergency Situation Air Sampling
Hayes, R. (2010, October). Radioactive Air Sampling Methods, pp. 357–367.
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: ORCID
Added: November 15, 2019
2010 book reference
Sources: Crossref, NC State University Libraries
Added: November 17, 2019
2009 journal article
Continuous Air Monitor Algorithm Development
Nuclear Technology, 168(1), 35–40.
author keywords: airborne contamination; continuous air monitor; algorithm
TL;DR:
An algorithm intended for use in the U.S. Navy’s next-generation air particle detector designed for measuring 60Co air contamination is described, demonstrating that the beta assay value is a linear superposition of the alpha ROI values from the three dominant alpha peaks.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: November 17, 2019
2009 journal article
Preliminary Benchmarking Efforts and MCNP Simulation Results for Homeland Security
Nuclear Technology, 168(3), 852–857.
author keywords: detector; benchmark; MCNP
Sources: Crossref, NC State University Libraries
Added: November 17, 2019
2008 journal article
High burn-up capability possibilities for a new beryllium moderated water cooled natural uranium reactor
Annals of Nuclear Energy, 35(8), 1584–1586.
Sources: Crossref, NC State University Libraries
Added: November 17, 2019
2008 journal article
PROBLEMS FOUND USING A RADON STRIPPING ALGORITHM FOR RETROSPECTIVE ASSESSMENT OF AIR FILTER SAMPLES
Health Physics, 94(4), 366–372.
author keywords: operational topics; air monitoring; radon; alpha particles
MeSH headings : Air Pollutants, Radioactive / analysis; Algorithms; Filtration / methods; Radiation Monitoring / instrumentation; Radiation Monitoring / methods; Radon / analysis; Software
TL;DR:
An evaluation of a large number of air sample filters was undertaken using a commercial alpha and beta spectroscopy system employing a passive implanted planar silicon (PIPS) detector, showing that there was a time-dependent bias in both average estimates and measurement dispersion of anthropogenic activity estimates.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
10. Reduced Inequalities
(OpenAlex)
Source: ORCID
Added: November 15, 2019
2007 journal article
BiodosEPR-2006 Meeting: Acute dosimetry consensus committee recommendations on biodosimetry applications in events involving uses of radiation by terrorists and radiation accidents
Radiation Measurements, 42(6-7), 972–996.
author keywords: acute dosimetry; radiological triage; dose assessment; electron paramagnetic resonance; cytogenetic biodosimetry; medical management of radiation casualties
TL;DR:
In the aftermath of a radiological terrorism incident or mass-casualty radiation accident, first responders and receivers require prior guidance and pre-positioned resources for assessment, triage and medical management of affected individuals.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: November 17, 2019
2007 journal article
Burn-up characteristics of a light-water-cooled nuclear reactor of natural uranium and beryllium
Journal of Physical & Natural Science, 1(2), 1–11.
Source: NC State University Libraries
Added: November 6, 2020
2007 journal article
Electron spin relaxation of radicals in irradiated tooth enamel and synthetic hydroxyapatite
Radiation Measurements, 42(6-7), 997–1004.
Sources: Crossref, NC State University Libraries
Added: November 17, 2019
2006 journal article
A Light-Water-Cooled Nuclear Reactor of Natural Uranium and Beryllium
Journal of ASTM International, 3(8), 100274.
Sources: Crossref, NC State University Libraries
Added: November 17, 2019
2005 journal article
USE OF ALPHA SPECTROSCOPY FOR CONDUCTING RAPID SURVEYS OF TRANSURANIC ACTIVITY ON AIR SAMPLE FILTERS AND SMEARS
Health Physics, 89(2), 172–180.
author keywords: air sampling; plutonium; spectroscopy; alpha; radon progeny
MeSH headings : Air Pollutants, Radioactive / analysis; Algorithms; Alpha Particles; Radiation Dosage; Radiation Monitoring / instrumentation; Radiation Monitoring / methods; Radiation Protection / instrumentation; Radiation Protection / methods; Risk Assessment / methods; Ultrafiltration / instrumentation; Ultrafiltration / methods; Uranium / analysis
TL;DR:
The utility of a portable alpha Continuous Air Monitor as a bench top scalar counter for multiple sample types, including using the CAM to count fixed air sample filters and radiological smears is demonstrated.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Crossref, NC State University Libraries
Added: November 17, 2019
2004 journal article
A NEW TECHNIQUE FOR PRELIMINARY ESTIMATES OF TRU ACTIVITY ON AIR SAMPLE FILTERS AND RADIOLOGICAL SMEARS
Health Physics, 87(4), 429–436.
author keywords: air sampling; spectrometry; alpha; naturally occurring radionuclides; waste management
MeSH headings : Air Pollutants, Radioactive; Air Pollution, Radioactive; Algorithms; Environmental Monitoring / methods; Filtration; Radiation Monitoring / methods; Radioactive Waste; Radon Daughters; Spectrophotometry
TL;DR:
The utility of using a portable continuous air monitor as an alpha spectrometer to make transuranic activity determinations of samples is evaluated using both the built in algorithm for air monitoring and a simple region of interest analysis.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
2004 journal article
Collimated spectroscopy for specific activity determination behind a shield wall
Radiation Measurements, 39(1), 43–46.
author keywords: gamma spectroscopy; collimation
Source: ORCID
Added: November 15, 2019
2004 journal article
Creating a baseline radiological standard for the waste isolation pilot plant underground
Isotopes in Environmental and Health Studies, 40(3), 213–220.
author keywords: background radiation; radiation protection; radiological standard; salt mine; transuranic waste; waste disposal
MeSH headings : Beta Particles; Gamma Rays; Geological Phenomena; Geology; Radiation Dosage; Radiation Protection; Radioactive Waste / legislation & jurisprudence; Radiometry; Refuse Disposal / legislation & jurisprudence; Refuse Disposal / standards; United States; Waste Management / legislation & jurisprudence; Waste Management / standards
TL;DR:
The establishment of the baseline information using the gamma background dose rate measurements and the salt rib smears of surface removable alpha and beta activities throughout the WIPP underground will be beneficial to the overall WIPP operational facility, ensuring the worker safety and adding to public confidence in the operation of the Wipps.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: November 17, 2019
2004 journal article
Generalized photon skyshine calculations
Radiation Protection Dosimetry, 111(3), 251–256.
MeSH headings : Algorithms; Body Burden; Humans; Photons; Radiation Dosage; Radiation Monitoring / methods; Radiation Protection / methods; Relative Biological Effectiveness; Reproducibility of Results; Sensitivity and Specificity; Sunlight; Ultraviolet Rays
TL;DR:
The energy-dependent dose contributions from monoenergetic photon source points located 1.5 m above the ground have been tabulated and are presented in effective dose units for regulatory compliance with site boundary dose limitations.
(via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: November 6, 2020
2004 journal article
Variation of long-lived free radicals responsible for the EPR native signal in bone of aged or diseased human females and ovariectomized adult rats
Radiation Measurements, 39(3), 255–262.
author keywords: dosimetry; aging; osteoporosis; free radicals; EPR; iron
MeSH headings : Adolescent; Adult; Aged; Aging / physiology; Animals; Antioxidants; Bone and Bones / physiopathology; Electron Spin Resonance Spectroscopy; Female; Femur; Flavonoids; Free Radicals / analysis; Humans; Iron; Ligands; Middle Aged; Osteoporosis / physiopathology; Ovariectomy; Radiometry; Rats; Rats, Sprague-Dawley; Women
TL;DR:
It was determined that changes occur in the long-lived free radicals responsible for the native signal of cortical bone in aging or diseased human females and aged ovariectomized rats, and dramatic decreases in both NC and BC signals were seen in HIV positive and uncontrolled diabetic patients.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(OpenAlex)
Source: ORCID
Added: November 15, 2019
2003 conference paper
Alternate Approach to the Upper Subcritical Limit Determination for MCNP
Transactions of the American Nuclear Society, 89, 109. http://www.scopus.com/inward/record.url?eid=2-s2.0-0346904404&partnerID=MN8TOARS
Source: ORCID
Added: November 15, 2019
2003 journal article
CURVE FITTING AIR SAMPLE FILTER DECAY CURVES TO ESTIMATE TRANSURANIC CONTENT
Health Physics, 86(1), 80–91.
author keywords: air sampling; monitoring; air; computer calculations; ventilation
MeSH headings : Air Pollutants, Radioactive / analysis; Algorithms; Environmental Monitoring / methods; Filtration / instrumentation; Filtration / methods; Half-Life; Models, Statistical; Poisson Distribution; Radiation Dosage; Radioisotopes / analysis; Radiometry / instrumentation; Radiometry / methods; Reproducibility of Results; Risk Assessment / methods; Sensitivity and Specificity; Uranium / analysis
TL;DR:
A new technique is developed to evaluate transuranic activity on air filters by curve fitting the decay curves by using the use of filter activity measurements at different times to estimate the air concentrations of radon progeny.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
9. Industry, Innovation and Infrastructure
(OpenAlex)
Source: ORCID
Added: November 15, 2019
2003 conference paper
Collimated Spectroscopy for Specific Activity Determination Behind a Shield Wall
Transactions of the American Nuclear Society, 89, 566. http://www.scopus.com/inward/record.url?eid=2-s2.0-0346904210&partnerID=MN8TOARS
Source: ORCID
Added: November 15, 2019
2003 journal article
Diagnostic X ray dose profiles in molar teeth using Monte Carlo simulation
Radiation Protection Dosimetry, 104(2), 153–158.
MeSH headings : Body Burden; Dentin / physiology; Humans; Models, Biological; Models, Statistical; Molar / physiology; Monte Carlo Method; Radiation Dosage; Radiation Protection / methods; Radiography; Radiometry / methods; Reproducibility of Results; Sensitivity and Specificity; X-Rays
TL;DR:
The dose profiles in molar teeth from diagnostic X rays was calculated using the Monte Carlo software program MCNP4c2 and supports needs in EPR retrospective dosimetry to account for diagnostic X ray exposures in teeth.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: November 17, 2019
2003 journal article
False CAM Alarms from Radon Fluctuations
Health Physics, 85, S81–S84.
MeSH headings : Air Pollution, Radioactive / analysis; Algorithms; Alpha Particles; Artifacts; Background Radiation; Beta Particles; Equipment Failure; Equipment Failure Analysis / methods; Occupational Exposure / analysis; Radiation Dosage; Radiation Protection / instrumentation; Radiation Protection / methods; Radioactive Waste / analysis; Radiometry / instrumentation; Radiometry / methods; Radon / analysis; Reproducibility of Results; Sensitivity and Specificity
TL;DR:
The root cause of many false continuous air monitor (CAM) alarms is revealed for CAMs that use constant spectral shape assumptions in transuranic (TRU) alpha activity determination algorithms.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
2003 journal article
Preliminary Evaluation of Real Time False CAM Alarm Prediction Through Continuous Radon Monitoring
Health Physics, 84, S89–S92.
author keywords: operational topic; monitors; radiation; radon; spectroscopy; alpha
MeSH headings : Air Pollutants, Radioactive / analysis; Radiation Monitoring / instrumentation; Radon / analysis
TL;DR:
From the results obtained, it appears that the radon monitor will be able to indicate when large rapid changes in radon levels are occurring before the effect on a CAM has taken place.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
2002 journal article
AN EPR MODEL FOR SEPARATING INTERNAL 90SR DOSES FROM EXTERNAL GAMMA-RAY DOSES IN TEETH
Health Physics, 83(1), 75–81.
author keywords: biological indicators; Sr-90; gamma radiation; dose; internal
MeSH headings : Electron Spin Resonance Spectroscopy / methods; Gamma Rays; Humans; Middle Aged; Models, Theoretical; Reproducibility of Results; Strontium / pharmacokinetics; Tooth / radiation effects
TL;DR:
A simplified theoretical model is presented by which the internal exposure from a bone seeking radionuclide can be measured and distinguished from an external gamma-ray dose.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
2002 journal article
Alpha CAM alarm set points in a salt dust environment
Health Physics, 82(6), 887–897.
author keywords: waste disposal; regulations; monitoring, air; radiation monitors
MeSH headings : Dust; New Mexico; Radiation Monitoring / methods; Radiation Monitoring / statistics & numerical data; Radiation Protection; Radioactive Waste / analysis; Radon Daughters / analysis; Sensitivity and Specificity; Sodium Chloride
TL;DR:
While considering the regulatory and site specific requirements for Continuous Air Monitor responses in the Waste Isolation Pilot Plant underground, a number of issues relating to the buildup of salt on the filters must be considered when determining the alarm set points.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
2002 journal article
Beta CAM alarm set-point determination using historical data at the WIPP
Radiation Protection Management, 19, 16–24.
Source: NC State University Libraries
Added: November 6, 2020
2002 journal article
DOSE RATE PREDICTION METHODOLOGY FOR REMOTE HANDLED TRANSURANIC WASTE WORKERS AT THE WASTE ISOLATION PILOT PLANT
Health Physics, 83(4), 449–455.
author keywords: waste management; exposure; personnel; regression; ALARA
MeSH headings : Algorithms; Government Agencies; Humans; Models, Theoretical; New Mexico; Occupational Exposure; Radiation Monitoring; Radioactive Waste; Radiometry; Refuse Disposal / methods; United States; Uranium
TL;DR:
An approach is described for estimating future dose rates to Waste Isolation Pilot Plant workers processing remote handled transuranic waste that becomes the basis for Safety Analysis Report dose rate estimates and for present and future ALARA design reviews when attempts are made to reduce worker doses.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
2002 journal article
Preliminary Measurements of Surface Removable NORM Activity in the WIPP Underground
Health Physics, 82(Supplement), S103–S107.
author keywords: operational topic; surface contamination; waste management; radioactivity, natural
MeSH headings : Air Pollution, Radioactive / analysis; Humans; Occupational Exposure / prevention & control; Radioactive Waste; Radiometry / methods; Refuse Disposal / methods; Sensitivity and Specificity; Time Factors
TL;DR:
It was found from over 40 smears taken during a two week period that surface removable activity from Naturally Occurring Radioactive Material (NORM) can be predicted to be within a factor of 2 or 3 using either a fixed air sampler measurement or even another smear measurement from a specified surface.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
2001 journal article
Internal contamination evaluation of a radioactive materials shipping container using a radiation assessment filter
Radiation Protection Management, 18(6), 30–38.
Source: NC State University Libraries
Added: November 6, 2020
2000 journal article
A method for identification of interfering signals in EPR dating of tooth enamel
Radiation Measurements, 32(5-6), 781–785.
author keywords: EPR; ESR; tooth enamel; dating; dosimetry
Sources: Crossref, NC State University Libraries
Added: December 16, 2019
2000 journal article
A virtually nondestructive EPR technique accounting for diagnostic X-rays
Radiation Measurements, 32(5-6), 559–566.
TL;DR:
The teeth were American wisdom teeth having unknown doses applied by the IAEA in the range of 0 to 1 Gy as part of the second international intercomparison on EPR tooth dosimetry.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(OpenAlex)
Sources: ORCID, Crossref, NC State University Libraries
Added: November 15, 2019
2000 journal article
Accurate EPR radiosensitivity calibration using small sample masses
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 441(3), 535–550.
author keywords: EPR; dosimetry; tooth enamel; ionizing radiation; nondestructive
TL;DR:
A procedure in retrospective EPR dosimetry is demonstrated which allows for virtually nondestructive sample evaluation in terms of sample irradiations and shows that by making all the recommended corrections, very small masses can be both accurately measured and correlated with measurements of other samples.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
2000 journal article
Assessment of an alanine EPR dosimetry technique with enhanced precision and accuracy
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 440(2), 453–461.
author keywords: EPR; ESR; ionizing radiation; dosimetry; alanine; nondestructive
TL;DR:
Dose reconstruction in the course of a series of blind tests demonstrated that an accuracy of 10 mGy for low doses and 1% for high doses can be achieved using EPR spectroscopy.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
2000 journal article
Comparison of sample preparation and signal evaluation methods for EPR analysis of tooth enamel
Applied Radiation and Isotopes, 52(5), 1059–1064.
author keywords: EPR; tooth enamel; dose reconstruction
MeSH headings : Dental Enamel / radiation effects; Electron Spin Resonance Spectroscopy / methods; Electron Spin Resonance Spectroscopy / statistics & numerical data; Humans; Radiometry; Reproducibility of Results
TL;DR:
The reproducibility of the dosimetric signal and its estimated relation with the absorbed dose was found to be very close for the applied methods with one possible exception.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
2000 journal article
EPR-dosimetry with carious teeth
Radiation Measurements, 32(5-6), 799–803.
TL;DR:
Reduction of the native signal intensity, particularly in the carious portions, was found to be the only significant effect, which resulted in a slight improvement in the accuracy of the reconstructed doses.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: December 16, 2019
2000 journal article
Preliminary report on the development of a virtually nondestructive additive dose technique for EPR dosimetry
Applied Radiation and Isotopes, 52(5), 1065–1070.
author keywords: alanine; EPR; ESR; dosimetry; ionizing radiation; transfer dosimetry; nondestructive
MeSH headings : Dental Enamel / radiation effects; Electron Spin Resonance Spectroscopy / methods; Electron Spin Resonance Spectroscopy / statistics & numerical data; Humans; Radioactive Hazard Release; Radiometry / methods; Radiometry / statistics & numerical data; Reproducibility of Results; Sensitivity and Specificity
TL;DR:
A specialized routine is outlined whereby the sample may be left for the most part unirradiated, while only a small aliquot of the sample will be additively irradiated to relatively large doses in EPR dosimetry studies for tooth enamel specimens.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
2000 journal article
The second international intercomparison on EPR tooth dosimetry
Radiation Measurements, 32(5-6), 549–557.
TL;DR:
The objective of the programme was to bring together all methods which are currently applied by different laboratories for EPR dose reconstruction and to demonstrate the present state of dosimetry.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: December 16, 2019
1999 journal article
A comparison of optically stimulated luminescence dating methods applied to Eolian sands from the Mojave desert in Southern Nevada
Quaternary Science Reviews, 18(2), 235–242.
Sources: Crossref, NC State University Libraries
Added: December 16, 2019
1999 journal article
Achievable Precision and Accuracy in EPR Dosimetry of Tooth Enamel
Radiation Protection Dosimetry, 84(1), 527–535.
Source: ORCID
Added: November 15, 2019
1999 journal article
An EPR Dosimetry Method For Rapid Scanning of Children Following A Radiation Accident Using Deciduous Teeth
Health Physics, 76(2), 137–144.
author keywords: accident analysis; electrons; screening measurements; children
MeSH headings : Child; Dental Enamel / chemistry; Electron Spin Resonance Spectroscopy / methods; Female; Humans; Incisor; Mass Screening; Radiation Monitoring / methods; Radioactive Hazard Release; Tooth, Deciduous / chemistry
TL;DR:
Electron paramagnetic resonance dosimetry may be applied to whole deciduous teeth of children and makes it feasible to make direct measurement of absorbed gamma ray dose in the days and weeks following a nuclear accident, particularly if used in conjunction with a public awareness program.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(OpenAlex)
Source: ORCID
Added: November 15, 2019
1999 journal article
Automated Spectral Manipulation and Data Analysis for EPR Dosimetry of Teeth
Radiation Protection Dosimetry, 84(1), 521–526.
TL;DR:
The method is shown to correlate with conventional spectral peak-to-peak values to within 10 mGy for the reconstructed doses andaired difference t-test data show that definitive systematic differences exist but that these effects on the reconstructed dose accuracy and precision are negligible.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
1999 journal article
Electron paramagnetic resonance dosimetry: Methodology and material characterization
Med. Phys., 26(11), 2516.
Source: ORCID
Added: November 15, 2019
1999 journal article
Geographic Variations in the EPR Spectrum of Tooth Enamel
Radiation Protection Dosimetry, 84(1), 445–449.
TL;DR:
Internal structure of the native signal and variations of its amplitude and linewidth were investigated for the samples prepared from modern teeth obtained from different geographic locations (USA and Russia) and possible reasons for the variations observed are discussed.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
1998 journal article
A High Sensitivity EPR Technique for Alanine Dosimetry
Radiation Protection Dosimetry, 77(1), 43–49.
Source: ORCID
Added: November 15, 2019
1998 journal article
An assessment of the Levenberg-Marquardt fitting algorithm on saturating exponential data sets
Ancient TL, 16(2), 57–62.
Source: NC State University Libraries
Added: November 6, 2020
1998 journal article
EPR Dosimetry of Pacific Walrus (Odobenus Rosmarus Divergens) Teeth
Radiation Protection Dosimetry, 77(1), 55–63.
TL;DR:
The potential for EPR dosimetry using walrus tooth cementum was examined and a complex native signal was seen in all samples, similar to that occurring in human tooth enamel.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water
(OpenAlex)
Source: ORCID
Added: November 15, 2019
1998 journal article
EPR Properties of Synthetic Apatites, Deorganified Dentine, and Enamel
Calcified Tissue International, 62(5), 443–446.
author keywords: apatite; enamel; dentine; dosimetry; EPR
MeSH headings : Apatites / chemistry; Apatites / radiation effects; Cobalt Radioisotopes; Dental Enamel / chemistry; Dental Enamel / radiation effects; Dentin / chemistry; Dentin / radiation effects; Durapatite / chemistry; Electron Spin Resonance Spectroscopy / methods; Humans; Spectroscopy, Fourier Transform Infrared; X-Ray Diffraction
TL;DR:
Electron paramagnetic resonance spectroscopy was used to study synthetic hydroxyapatite and ∼1, 2, and 6% synthetic carbonated apatites, deorganified dentine, and enamel and established that the precenters responsible for the dosimetric signal are preferentially concentrated in the surface-accessible region of the mineral component.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
1998 journal article
Influence of crushing and additive irradiation procedures on EPR dosimetry of tooth enamel
Radiation Measurements, 29(1), 105–111.
TL;DR:
A new interpretation of transient signals 1108 is proposed which explains the above phenomena and recommendations about how to use this interpretation in retrospective EPR dosimetry are given.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
1998 journal article
Properties of light induced EPR signals in enamel and their possible interference with gamma-induced signals
Radiation Measurements, 29(1), 113–118.
TL;DR:
Exposure of tooth enamel to natural and artificial UV light results in stable EPR signals with g-factors that are sensitive to both gamma-ray and sunlight exposure, however, their responses to light differed from that to radiation, giving rise to the possibility of using them as indicators of the dose-equivalent resulting from light exposure.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
1998 journal article
Technique for increasing reproducibility in EPR dosimetry of tooth enamel
Meas. Sci. Technol., 9(12), 1994–2006.
author keywords: EPR; ESR; enamel; dosimetry; ionizing; radiation
Source: ORCID
Added: November 15, 2019
1997 journal article
A mathematical approach to optimal selection of dose values in the additive dose method of EPR dosimetry
Radiation Measurements, 27(2), 315–323.
TL;DR:
The optimal spacing is shown to be a concentration of points near the zero dose value with fewer spectra taken at a single high dose value within the range of known linearity.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
1997 journal article
An EPR intercomparison using teeth irradiated prior to crushing
Radiation Measurements, 27(2), 419–424.
TL;DR:
An intercomparison of methods used for EPR dosimetry of enamel was made by the Center for Applied Dosimetry at the University of Utah and the Scientific Center for Radiation Medicine in the Ukraine and showed that both methods were in good agreement with the applied dose.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
1997 report
EPR dosimetry teeth in past and future accidents: A prospective look at a retrospective method
TL;DR:
In the case of children, deciduous teeth, which are shed between the ages of 7 and 13, can be a very important dosimetric source if documented collection is implemented shortly following an accident.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(OpenAlex)
Source: ORCID
Added: November 15, 2019
1997 journal article
Electron Paramagnetic Resonance Techniques and Space Biodosimetry
Radiation Research, 148(5), S51.
TL;DR:
The current status of EPR dosimetry of teeth as applied to retrospective measurements of accidental exposures is reviewed, future research directions which will further reduce the limits of detection are outlined and a lightweight, high-sensitivity, in vivo EPR spectrometer is outlined.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: December 16, 2019
1997 journal article
Improved accuracy of EPR dosimetry using a constant rotation goniometer
Radiation Measurements, 27(2), 325–329.
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: ORCID
Added: November 15, 2019
1996 report
EPR dosimetry of whole deciduous tooth using a constant rotation goniometer and background subtraction with a dentine standard
TL;DR:
A rapid method of electron paramagnetic resonance (EPR) dosimetry of dental enamel will allow screening of whole deciduous teeth of children following a nuclear accident and is capable of measuring doses of less than 100 mGy.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
1996 report
Influence of crushing and additive irradiation procedures on EPR dosimetry of tooth enamel
Source: ORCID
Added: November 15, 2019
1996 journal article
Preparation-induced errors in EPR dosimetry of enamel: Pre- and post-crushing sensitivity
Applied Radiation and Isotopes, 47(11-12), 1305–1310.
MeSH headings : Dental Enamel / chemistry; Dental Enamel / radiation effects; Dose-Response Relationship, Radiation; Electron Spin Resonance Spectroscopy / methods; Electron Spin Resonance Spectroscopy / statistics & numerical data; Evaluation Studies as Topic; Free Radicals / analysis; Free Radicals / radiation effects; Gamma Rays; Humans; In Vitro Techniques; Radiometry / methods; Radiometry / statistics & numerical data
TL;DR:
The effect of gamma irradiation applied to the specimens before and after crushing found that post-crushing irradiation altered the slope of the dose-response curve of the hydroxyapatite signal and produced a grain-size-dependent offset.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
1996 report
Preparation-induced errors in EPR dosimetry of enamel: pre- and post-crushing sensitivity
TL;DR:
It is found that post-crushing irradiation altered the slope of the dose-response curve of the hydroxyapatite signal and produced a grain-size dependent offset.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
1996 report
Properties of light induced EPR signals in enamel and their possible interference with gamma-induced signals
Source: ORCID
Added: November 15, 2019
1996 journal article
The first international intercomparison of EPR-dosimetry with teeth: First results
Applied Radiation and Isotopes, 47(11-12), 1281–1286.
MeSH headings : Dental Enamel / chemistry; Dental Enamel / radiation effects; Electron Spin Resonance Spectroscopy / methods; Electron Spin Resonance Spectroscopy / statistics & numerical data; Evaluation Studies as Topic; Free Radicals / analysis; Free Radicals / radiation effects; Humans; Laboratories; Radiation Tolerance; Radiometry / methods; Radiometry / statistics & numerical data
TL;DR:
Peculiarities of experimental approaches are discussed systematically in terms of procedure for recording the EPR-spectra, determination of the amplitude of the radiation induced signal, determinationof the dose, and error propagation.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: December 16, 2019
1995 journal article
Effect of mechanically induced background signal on EPR dosimetry of tooth enamel
Radiation Measurements, 24(3), 249–254.
TL;DR:
It was determined that 220 mGy was the lowest absorbed dose that could be reliably detected, while doses as low as 44 mGy could tentatively be identified.
(via Semantic Scholar)
Source: ORCID
Added: November 15, 2019
1995 journal article
Electron Paramagnetic Resonance Dosimetry of Dentine Following Removal of Organic Material
Health Physics, 68(4), 579–584.
author keywords: RADIATION DOSE; DOSIMETRY; EXPOSURE, RADIATION; ACCIDENTS, NUCLEAR
MeSH headings : Dentin / radiation effects; Electron Spin Resonance Spectroscopy / methods; Feasibility Studies; Humans; Magnetics; Radiation Monitoring / methods; Tooth Extraction
TL;DR:
The feasibility of using dentine from surgically extracted human teeth as in vivo dosimeters was investigated and it was concluded that doses of 500 mGy or less may be resolved with prior removal of the organic component of dentine.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: December 16, 2019
Employment
Updated: July 25th, 2021 14:14
2021 - present
Elsevier BV Amsterdam, Noord-Holland, NL
Associate Editor
Radiation Physics and Chemistry
2015 - present
North Carolina State University Raleigh, NC, US
Associate Professor
Nuclear Engineering
2015 - 2021
Tetra Tech Inc Oak Ridge, TN, US
Senior Project Manager
Nuclear
2008 - 2015
Nuclear Waste Partnership LLC Carlsbad, NM, US
Principle Engineer
Nuclear Safety
2008 - 2011
University of the Southwest Hobbs, NM, US
Adjunct Professor
Arts and Sciences
2005 - 2008
National Security Technologies LLC Las Vegas, NV, US
Senior Scientist
Consequence Assessment
2000 - 2005
Washington TRU Solutions, LLC Carlsbad, NM, US
Senior Engineer
Radiological Engineering
Education
Updated: July 28th, 2018 14:20
1997 - 1999
University of Utah Salt Lake City, UT, US
PhD
Nuclear Engineering
1994 - 1997
University of Utah Salt Lake City, UT, US
MS
Physics
1989 - 1994
University of Utah Salt Lake City, UT, US
BS
Mathematics
1989 - 1994
University of Utah Salt Lake City, UT, US
BS
Physics
Funding History
Funding history based on the linked ORCID record. Updated: July 28th, 2018 14:07
grant
January 1, 2018 - January 1, 2020
Retrospective Characterization of Nuclear Material with TL/OSL
U.S. Department of Energy
contract
January 1, 2015 - January 1, 2017
Joint Faculty Appointment
Oak Ridge National Laboratory
grant
Faculty development
U.S. Nuclear Regulatory Commission
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