N. Dianne Ezell

ORCID: 0000-0001-9334-5822
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About
Contact & Profiles
Research Areas
  • Nuclear reactor physics and engineering
  • Nuclear Physics and Applications
  • Nuclear Materials and Properties
  • Radiation Detection and Scintillator Technologies
  • Radiation Effects in Electronics
  • Molten salt chemistry and electrochemical processes
  • Metallurgical Processes and Thermodynamics
  • Graphite, nuclear technology, radiation studies
  • Geophysical Methods and Applications
  • Particle Detector Development and Performance
  • Ultrasonics and Acoustic Wave Propagation
  • Thermodynamic and Structural Properties of Metals and Alloys
  • Calibration and Measurement Techniques
  • Silicon Carbide Semiconductor Technologies
  • Advancements in Semiconductor Devices and Circuit Design
  • Particle physics theoretical and experimental studies
  • Nuclear and radioactivity studies
  • Non-Destructive Testing Techniques
  • Advanced Sensor Technologies Research
  • Flow Measurement and Analysis
  • Nuclear materials and radiation effects
  • Fault Detection and Control Systems
  • Nuclear Engineering Thermal-Hydraulics
  • Fusion materials and technologies
  • GaN-based semiconductor devices and materials

Oak Ridge National Laboratory
2015-2024

Government of the United States of America
2022-2023

National Technical Information Service
2018-2022

Office of Scientific and Technical Information
2018-2022

Engineering Systems (United States)
2018

Goethe University Frankfurt
2018

A disruption mitigation system (DMS) is under design for ITER to inject sufficient material deeply into the plasma rapid thermal shutdown and collisional suppression of any resulting runaway electrons. Progress on development both a shattered pellet injector (SPI) that produces large solid cryogenic pellets provide reliable deep penetration fast opening high flow rate gas valve massive injection (MGI) presented. Cryogenic deuterium neon up 25 mm in size have been formed accelerated with...

10.13182/fst14-926 article EN Fusion Science & Technology 2015-06-26

Molten salts have favorable material properties for use in high-temperature energy systems, including thermal storage concentrating solar power plants, nuclear reactors, and various industrial manufacturing processes. Knowledge of chemical thermophysical property data is essential the design optimization these yet are often limited or uncertain many candidate due to difficulty measurements at relevant temperatures (e.g., 500–900 °C). Here, density molten LiF-NaF-KF eutectic reassessed...

10.1021/acs.jced.2c00081 article EN Journal of Chemical & Engineering Data 2022-06-01

Capsules containing NaCl–MgCl2 salt with 316L stainless steel or alloy N samples were irradiated in the Ohio State University Research Reactor for 21 nonconsecutive hours. A custom irradiation vessel was designed this purpose, and details on its design construction are given. Stainless that during exposure had less corrosive attack than exposed to same conditions without irradiation. Alloy showed no significant effect of This work shows a method conducting in-reactor irradiation–corrosion...

10.1016/j.net.2020.07.042 article EN cc-by-nc-nd Nuclear Engineering and Technology 2020-08-08

This paper describes recent fast-neutron imaging measurements of the fieldable nuclear materials identification system (FNMIS) under development by Oak Ridge National Laboratory with Nuclear Security Administration (NNSA-NA-22) support for possible future use in arms control and nonproliferation applications. presents initial performed at a Thermo Fisher API 120 DT generator module FNMIS. 1 manuscript has been authored Laboratory, managed UT-Battelle LLC contract no. DE-AC05-00OR22725 US...

10.1016/j.phpro.2015.05.054 article EN Physics Procedia 2015-01-01

10.1016/j.nima.2018.06.084 article EN publisher-specific-oa Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2018-07-03

A high-sensitivity 4H–SiC temperature sensor and an alpha detector have been fabricated using additively printed metal contacts. The surface morphology electrical conductivity of the electrodes were established prior to Schottky diode development. diodes with direct-write silver contacts on 5 μm-thick epilayer characterized electrically in terms forward reverse current–voltage high-frequency capacitance–voltage characteristics. turn-on voltage diodes, as from characteristics measured up a...

10.1063/5.0007496 article EN Applied Physics Letters 2020-06-22

Abstract The upgrade of the ALICE TPC will allow experiment to cope with high interaction rates foreseen for forthcoming Run 3 and 4 at CERN LHC. In this article, we describe design new readout chambers front-end electronics, which are driven by goals experiment. Gas Electron Multiplier (GEM) detectors arranged in stacks containing four GEMs each, continuous electronics based on SAMPA chip, an development, replacing previous elements. construction these elements, together their associated...

10.1088/1748-0221/16/03/p03022 article EN cc-by Journal of Instrumentation 2021-03-01

A gate driver fabricated in a 2-μm 4H silicon carbide (SiC) process is presented. This was optimized for vertical power MOSFET fabrication but accommodated integration of few low-voltage device types including N-channel MOSFETs, resistors, and capacitors. The topology employed incorporates an input level translator, variable connections, separate supply connectivity allowing selection the output signal drive amplitude. stage utilizes source follower pull-up that both overdriven body...

10.1109/wipda.2014.6964626 article EN IEEE Workshop on Wide Bandgap Power Devices and Applications 2014-10-01
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