A5085632430- Nuclear Physics and Applications
- Radiation Detection and Scintillator Technologies
- Nuclear reactor physics and engineering
- Nuclear Materials and Properties
- Nuclear and radioactivity studies
- Particle Detector Development and Performance
- Atomic and Subatomic Physics Research
- Radioactive contamination and transfer
- Particle accelerators and beam dynamics
- Geophysical Methods and Applications
- Radioactivity and Radon Measurements
- Graphite, nuclear technology, radiation studies
- Radiation Therapy and Dosimetry
- Seismic Waves and Analysis
- Ion-surface interactions and analysis
- Medical Imaging Techniques and Applications
- Radioactive element chemistry and processing
- Seismology and Earthquake Studies
- Advanced Radiotherapy Techniques
- Music and Audio Processing
- Electrohydrodynamics and Fluid Dynamics
- Mass Spectrometry Techniques and Applications
- Radiation Effects and Dosimetry
- Ultrasonics and Acoustic Wave Propagation
- Chemical Safety and Risk Management
Idaho National Laboratory
2016-2025
Pennsylvania State University
2017
National Institute of Standards and Technology
2016
Pacific Northwest National Laboratory
2012
National Technical Information Service
2012
Office of Scientific and Technical Information
2012
Idaho State University
2012
United States Department of Commerce
2012
University of Michigan
2012
Oak Ridge National Laboratory
2009
Abstract Sample return capsules (SRCs) entering Earth’s atmosphere at hypervelocity from interplanetary space are a valuable resource for studying meteor phenomena. The 2023 September 24 arrival of the Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer SRC provided an unprecedented chance geophysical observations well-characterized source with known parameters, including timing trajectory. A collaborative effort involving researchers 16 institutions...
Neutron radiography of irradiated nuclear fuel provides more comprehensive information about the internal condition than any other non-destructive technique to date. Idaho National Laboratory (INL) has multiple fuels research and development programs that routinely evaluate using neutron radiography. The Radiography reactor (NRAD) sits beneath a shielded hot cell facility where evaluation techniques are performed on these highly radioactive objects. NRAD currently uses foil-film transfer for...
Most of the plutonium in world resides inside spent nuclear reactor fuel rods. This high-level radioactive waste is commonly held long-term storage within large, heavily shielded casks. Currently, international safeguards inspectors have no stand-alone method verifying amount stored a sealed cask. Here we demonstrate experimentally that measurements scattering angles cosmic ray muons which pass through cask can be used to determine if assemblies are missing without opening application...
For prompt detection of large (>1 kt) above-ground explosions, infrasound microphone networks and arrays are deployed at surveyed locations across the world. Denser regional local for smaller however, they limited in number often temporarily experiments. With expanded interest yield explosions targeted vulnerable areas such as population centers key infrastructures, need more dense has increased. An “attritable” (affordable, reusable, replaceable) flexible alternative can be provided...
Abstract On 2 May 2019, during the 137 Cs source recovery operation, a capsule in research irradiator containing approximately 77.1 TBq was breached. Based on geometric reconstruction analysis of damage to capsule, 46.3 GBq (0.04%) impacted by chop saw (grinder) inside mobile hot cell loading dock at University Washington Harborview Research and Training (HRT) Building. A very small fraction material impacted, less than 1%, released from then rest HRT The objectives this project were assess...
Neutron multiplicity counting (NMC) techniques are widely used for nuclear materials accountability and international safeguards applications to quantitatively evaluate characteristic properties pertaining fissile material. Mathematical models NMC moments have been previously derived systems that use capture-based detectors; however, these not applicable when scatter-based detectors because of "neutron cross talk." talk occurs a single neutron scatters deposits energy above threshold into...
This paper summarizes efforts to characterize and qualify a computed radiography (CR) system for neutron of irradiated nuclear fuel at Idaho National Laboratory (INL). INL has multiple programs that are actively developing, testing, evaluating new fuels. Irradiated experiments subjected number sequential post-irradiation examination techniques provide insight into the overall behavior performance fuel. One first most important these exams is radiography, which provides more comprehensive...
Explosion monitoring is performed by infrasound and seismoacoustic sensor networks that are distributed globally, regionally, locally. However, these unevenly sparsely distributed, especially in the local scale as maintaining deploying costly. With increasing interest smaller yield explosions, need for more dense has increased. To address this issue, we propose using smartphone sensors explosion detection they cost-effective easy to deploy. Although there studies detection, field still its...
Ionizing radiation passing through air leads to the ionization of nitrogen in air; as this de-excites it is accompanied with emission near-ultraviolet (NUV) light. NUV-sensitive optical imaging may be used analyze light infer spatial location and distribution ionizing fields air. Due their high linear energy transfer alpha particles are most readily located detected using technique. Overlaying visible images onto ultraviolet fluorescence provides a novel, selective method for assessing...
Abstract The objective of this work was to study the dynamic leaching behavior thirty-three elements in municipal solid waste incinerator fly ash using a column test employing double deionized water. Nearly all initially present leachate were found leach quickly and then decrease near constant concentrations after five pore volumes water passed through column. Of eight subject toxicity characteristic procedure (TCLP) investigations, except lead below regulatory limits. After three column,...