A5044335193- Nuclear physics research studies
- Nuclear Physics and Applications
- Particle physics theoretical and experimental studies
- Medical Imaging Techniques and Applications
- Astronomical and nuclear sciences
- Physics of Superconductivity and Magnetism
- Quantum Chromodynamics and Particle Interactions
- Phase-change materials and chalcogenides
- Neutrino Physics Research
- Advanced NMR Techniques and Applications
- Nuclear reactor physics and engineering
- Gamma-ray bursts and supernovae
- Quantum chaos and dynamical systems
- Radiation Therapy and Dosimetry
- Radiation Detection and Scintillator Technologies
- Health and Conflict Studies
- Forensic and Genetic Research
- Fault Detection and Control Systems
- Radioactive Decay and Measurement Techniques
- Semiconductor Lasers and Optical Devices
- Electronic and Structural Properties of Oxides
- Child and Animal Learning Development
- Electron and X-Ray Spectroscopy Techniques
- Chemical Reactions and Isotopes
- Advanced Chemical Physics Studies
Pacific Northwest National Laboratory
2025
Michigan State University
2023-2024
Joint Institute for Nuclear Astrophysics
2023-2024
Louisiana State University
2017-2021
Louisiana State University Agricultural Center
2020
University of Richmond
2014
Butler University
2011
AT&T (United States)
1984-1988
Nokia (United States)
1987
We report on a new process to make films of Y1Ba2Cu3O7 using coevaporation Y, Cu, and BaF2 SrTiO3 substrates. The have high transition temperatures (up 91 K for full resistive transition), critical current densities (106 A/cm2 at 81 K), reduced sensitivity fabrication environmental conditions. Because the lower reactivity films, we been able pattern them in both pre-annealed post-annealed states conventional positive photoresist technology.
New astronomical observations point to a nucleosynthesis picture that goes beyond what was accepted until recently.The intermediate "i" process proposed as plausible scenario explain some of the unusual abundance patterns observed in metal-poor stars.The most important nuclear physics properties entering i-process calculations are neutron-capture cross sections and they almost exclusively not known experimentally.Here we provide first experimental constraints on 139 Baðn; γÞ 140 Ba reaction...
In the pursuit of identifying rare two-particle events within GADGET II Time Projection Chamber (TPC), this paper presents a comprehensive approach for leveraging Convolutional Neural Networks (CNNs) and various data processing methods. To address inherent complexities 3D TPC track reconstructions, is expressed in 2D projections 1D quantities. This capitalizes on diverse modalities TPC, allowing efficient representation distinct features events, with no loss topology uniqueness....
The shape of the atomic nucleus is a property which underpins our understanding nuclear systems, impacts limits existence, and enables probes physics beyond Standard Model. Nuclei can adopt variety shapes, including spheres, axially deformed spheroids, pear shapes. In some regions chart where spherical would naively be expected, states result from collective action constituent protons neutrons. small subset nuclei both have been experimentally observed, phenomenon termed coexistence. We...
The first complete measurement of the β-decay strength distribution Cl281745 was performed at Facility for Rare Isotope Beams (FRIB) with FRIB Decay Station Initiator during second experiment. involved detection neutrons and γ rays in two focal planes a single experiment time. This enabled an analytical consistency extracting over large range excitation energies, including neutron unbound states. We observe rapid increase above separation energy Ar271845. interpreted to be caused by...
The $^{236}\mathrm{Pu}(n,f)$, $^{237}\mathrm{Pu}(n,f)$ and $^{238}\mathrm{Pu}(n,f)$ cross sections have been inferred by utilizing the surrogate ratio method. Targets of $^{239}\mathrm{Pu}$ $^{235}\mathrm{U}$ were bombarded with 28.5-MeV protons, light ion recoils, as well fission fragments, detected using STARS detector array at K150 Cyclotron Texas A cyclotron facility. ($p$, $tf$) reaction on targets was used to deduce $\ensuremath{\sigma}$...
Although most nuclei heavier than Fe are likely produced by the slow and rapid neutron-capture ($s$ $r$) processes, a number of medium-mass, proton-rich thought to be via photo-disintegration ($\ensuremath{\gamma}$ process). To confirm this, one needs detailed statistical model calculations that constrained experimental input. In this work, authors measured ($\ensuremath{\gamma}$,$p$) reaction on unstable ${}^{83}$Rb nucleus, balance, using ${}^{82}$Kr($p$,$\ensuremath{\gamma}$)${}^{83}$Rb...
Background: Type I X-Ray bursts (XRBs) are energetic stellar explosions that occur on the surface of a neutron star in an accreting binary system with low-mass H/He-rich companion. The rate $^{34}$Ar($\alpha,p$)$^{37}$K reaction may influence features light curve results from underlying thermonuclear runaway, as shown recent XRB modelling studies. Purpose: In order to reduce uncertainty this reaction, properties resonances compound nucleus $^{38}$Ca, such resonance energies, spins, and...
The laser power required to record high contrast marks in a polymer film can be reduced two orders of magnitude by depositing the on transparent conductor-photoconductor-conductor sandwich. sensitivity this medium is controlled adjusting voltage applied conductors. In limited regime, as little 0.1 mW increase ohmic heating at focus enough produce symmetric micrometer size bubbles adjacent without damaging photoconductor. However, due dark resistivity photoconductor, dissipation unilluminated...
Reactions on certain proton-rich, radioactive nuclei have been shown to a significant influence X-ray bursts. We provide an overview of two recent measurements important burst reactions using in-flight ion beams from the RESOLUT facility at J. D. Fox Superconducting Accelerator Laboratory Florida State University. The 17F(d,n)18Ne reaction was measured, and Asymptotic Normalization Coefficients were extracted for bound states in 18Ne that determine direct-capture cross section dominating...
The optical writing characteristics of sputtered tellurium films are presented. We compare thin in argon with those an Ar-H2 mixture. Preliminary stress tests described.
The optical writing characteristics of sputtered tellurium films are presented. We compare thin in argon to those an argon-hydrogen mixture. Preliminary stress tests described.