Nora Dianne Bull Ezell

Profile Information
Name
Dr. Nora Dianne Bull Ezell
Institution
Oak Ridge National Laboratory
Position
R&D Engineer
h-Index
ORCID
0000-0001-9334-5822
Biography

N. Dianne Bull Ezell joined ORNL as R&D Staff member in July 2011 after completing a 9-month post-master’s internship. She completed a Ph.D. in 2016 focusing on signal processing of EMI rejection for Johnson Noise Thermometry measurements in 2016, from the University of Tennessee. Her research interests are system architecture and integration as well as low-power mixed-signal electronic design for nuclear instrumentation. A few of her on-going projects at ORNL are systems engineer for A Large Ion Collider (ALICE) at CERN, technical lead of the non-destructive evaluation (NDE) program, and system engineer of nuclear instrument design for advanced reactors. Dianne recently started developing irradiation experiments in support of the molten salt campaign. She received a BS in Electrical Engineering (2007) and an MS in Electrical Engineering (2009) from the University of Tennessee with research focused on integrated circuit design for hybrid electric vehicles, medical sensors, and lithography.

Expertise
Analog Electronics, Nuclear Instrumentation, System Integration
Additional Publications:
"An Overview of the Molten Salt Thermal Properties Database--Thermophysical, Version 3.1 (MSTDB-TP v.3.1)" Nick Termini, Ryan Chesser, Shane Henderson, Jacob Numbers, Ethan Wilgocki, N. Dianne Ezell, Tony Birri, [2024] · DOI: 10.2172/2455081
"Assessment of the Impact of Realistic Sensor Physics and the Integration of Ex-Core Sensors on Reactor Power Synthesis" K. Goetz, Daniel Sweeney, N. Bull Ezell, Anthony Birri, [2024] · DOI: 10.2172/2448162
"Status memorandum on ORNL support of vendor irradiation capsule design and ASME irradiation code development and new ASTM test standard development activities" Richard Howard, N. Ezell, Zane Wallen, Anne Campbell, [2024] · DOI: 10.2172/2462864
"Fast Neutron Irradiation of a Multichannel JFET-Based Optical Encoder" F. Kyle Reed, K. C. Goetz, Adam P. Buchalter, N. Dianne Bull Ezell, Daniel C. Sweeney, [2024] IEEE Transactions on Nuclear Science · DOI: 10.1109/tns.2024.3398417
"Development and demonstration of a rolling ball viscometer for molten salts with near-minimum liquidus NaCl–KCl" Nicholas Termini, Paul Rose, Shay Chapel, Hunter Andrews, N. Dianne Bull Ezell, Anthony Birri, [2023] Thermal Science and Engineering Progress · DOI: 10.1016/j.tsep.2023.102029
"FY23 Progress Report on Viscosity and Thermal Conductivity Measurements of Molten Salts" Nick Termini, Kevin Garland, Shay Chapel, Hunter Andrews, Paul Rose, Jr., N. Ezell, Tony Birri, [2023] · DOI: 10.2172/1997686
"Towards Realistic and High Fidelity Models for Nuclear Reactor Power Synthesis Simulation with Self-Powered Neutron Detectors" K. Goetz, Daniel Sweeney, N. Dianne Ezell, Anthony Birri, [2023] · DOI: 10.2172/1996662
"An Overview of the Molten Salt Thermal Properties Database–Thermophysical, Version 2.1.1 (MSTDB-TP v.2.1.1)" Anthony Birri, Shane Henderson, N. Dianne Ezell, Nick Termini, [2023] · DOI: 10.2172/1988348
"Wireless System Development for GaN-Based Transmitters for Advanced Nuclear Reactor Environments" , C. Witherspoon, M. Ericson, N. Bull Ezell, Jack Lanza, Chandan Joishi, Hyunsoo Lee, Raymond Cao, Siddharth Rajan, F. Reed, , Tyler McCormick, [2023] · DOI: 10.2172/2502200
"WIRE-21 Experiment Irradiation Conditions and In-Situ Data Collection" Daniel Sweeney, Padhraic Mulligan, Kara Godsey, N. Dianne Ezell, Paul Sirianni, Shawn Stafford, Jeff Arndt, Jorge Carvajal, Christian Petrie, [2023] · DOI: 10.2172/1991710
"A 100-Mrad (Si) JFET-Based Sensing and Communications System for Extreme Nuclear Instrumentation Environments" M. Nance Ericson, N. Dianne Bull Ezell, Roger A. Kisner, Lei Zuo, Haifeng Zhang, Robert Flammang, F. Kyle Reed, [2022] Nuclear Technology · DOI: 10.1080/00295450.2022.2057776
"Considerations of Radiation-Hardened Electronics for Alpha Detectors in Molten Salt Reactors" F. Reed, Neil Taylor, N. Dianne Bull Ezell, K. Goetz, [2022] · DOI: 10.2172/1890315
"Development of a Radiation-Tolerant Front End Digitizer" K. Goetz, F. Reed, N. Ezell, Daniel Sweeney, [2022] · DOI: 10.2172/1906583
"Radiation-Hardened GaN HEMT and Cell Design, Modeling, and Fabrication for Nuclear Instrumentation Applications" Kyle Reed, N Dianne Ezell, Chandan Joishi, Lloyd Clonts, Brett Witherspoon, Siddharth Rajan, Raymond Cao, Adithya Balaji, Nance Ericson, [2022] · DOI: 10.2172/2205450
"FY2022 Progress Report on Viscosity and Thermal Conductivity Measurements of Molten Salts" Ryan Gallagher, Nicholas Russell, Nicholas Termini, Paul Rose Jr., N. Bull Ezell, Anthony Birri, [2022] · DOI: 10.2172/1887678
"Design and performance of a variable gap system for thermal conductivity measurements of high temperature, corrosive, and reactive fluids" Anthony Birri, Nick Russell, N. Dianne B. Ezell, Ryan C. Gallagher, [2022] International Journal of Heat and Mass Transfer · DOI: 10.1016/j.ijheatmasstransfer.2022.122763
"Radiation-Hardened GaN-Based Wireless Communications Architectures for Terrestrial Nuclear Reactor Sensing and Instrumentation" Brett Witherspoon, Nance Ericson, N. Ezell, Siddharth Rajan, Raymond Cao, Adithya Balaji, Chandan Joishi, Kyle Reed, [2022] · DOI: 10.2172/2205453
"Assessment of Molten Eutectic LiF-NaF-KF Density through Experimental Determination and Semiempirical Modeling" Can Agca, Nick Russell, Jacob W. McMurray, Nora D. Bull Ezell, Ryan C. Gallagher, [2022] Journal of Chemical & Engineering Data · DOI: 10.1021/acs.jced.2c00081
"GaN HEMT Fabrication for Radiation-Hardened Sensing and Communications Electronics" Nance Ericson, N Dianne Ezell, Gavin Long, Siddharth Rajan, Raymond Cao, Adithya Balaji, Chandan Joishi, Kyle Reed, [2022] · DOI: 10.2172/2205455
"Wide Bandgap Semiconductors for Extreme Temperature and Radiation Environments" K. Goetz, M. Ericson, Daniel Sweeney, N. Bull Ezell, F. Reed, [2022] · DOI: 10.2172/1856704
"WIRE-21 Sensor Irradiation Experiment Ready for HFIR Insertion" Austin Chapel, Padhraic Mulligan, David Bryant, Daniel Sweeney, Adam James, N. Dianne Ezell, Kurt Smith, Kara Godsey, Maureen Searles, Shawn Stafford, Jeff Arndt, Jorge Carvajal, Christian Petrie, [2022] · DOI: 10.2172/1847516
"Thermal Property Characterization of Molten Salt Reactor–Relevant Salts" Ryan Gallagher, Can Agca, Jake McMurray, N. Dianne Ezell, [2021] · DOI: 10.2172/1844891
"Radiation-Hardened Instrumentation, Sensors and Electronics" F. Reed, N. Bull Ezell, Milton Ericson, [2021] · DOI: 10.2172/1786287
"Roadmap for thermal property measurements of Molten Salt Reactor systems" Kaitlin Johnson, Can Agca, Benjamin Betzler, Dave Kropaczek, Theodore Besmann, David Andersson, N. Dianne Ezell, Jake Mcmurray, [2021] · DOI: 10.2172/1778081
"Wireless Instrumented RB Experiment Preliminary Design and Analysis" Kurt Smith, N. Bull-Ezell, Daniel Sweeney, Kara Godsey, Adam James, Annabelle Le Coq, Joel McDuffee, Jorge Carvajal, Christian Petrie, Padhraic Mulligan, [2020] · DOI: 10.2172/1767859
"Demonstrate embedding of sensors in a relevant microreactor component" Nora Dianne Ezell, Christian Petrie, [2020] · DOI: 10.2172/1720216
"Radiation Hardened Electronics for Reactor Environments" N. Dianne Ezell, Milton Ericson, Charles Britton, Jr., F. Reed, [2020] · DOI: 10.2172/1763473
"Molten Salt Reactor Engineering Study for Off-Gas Management" Brian Riley, David Holcomb, Amanda Lines, Hunter Andrews, Sam Bryan, A. Chapel, N. Dianne Ezell, Heather Felmy, Michael Greenwood, Paul Humrickhouse, Kristian Myhre, Joanna McFarlane, [2020] · DOI: 10.2172/1649021
"Nondestructive Evaluation of Concrete within Nuclear Applications" Nora Bull Ezell, [2020] · DOI: 10.2172/1706250
"Thermophysical Property Measurements on Salt Mixture" Ryan Gallagher, Nicholas Russell, Alex Martin, Jake Mcmurray, Abbey McAlister, N. Dianne Ezell, [2020] · DOI: 10.2172/1763479
"Thermal and radiation response of 4H–SiC Schottky diodes with direct-write electrical contacts" Yongchao Yu, Mihee Ji, Tolga Aytug, Shannon Mahurin, Richard Mayes, Sacit Cetiner, M. Parans Paranthaman, Dianne Ezell, Lei R. Cao, Pooran C. Joshi, Neil R. Taylor, [2020] Applied Physics Letters · DOI: 10.1063/5.0007496

A high-sensitivity 4H–SiC temperature sensor and an alpha detector have been fabricated using additively printed metal contacts. The surface morphology and electrical conductivity of the printed electrodes were established prior to Schottky diode development. 4H–SiC Schottky diodes with direct-write printed silver contacts on the 5 μm-thick epilayer on 4H–SiC were characterized electrically in terms of the forward and reverse current–voltage and high-frequency capacitance–voltage characteristics. The turn-on voltage of the Schottky diodes, as established from the forward current–voltage characteristics measured up to a temperature of 400 °C, showed a linear temperature dependence. Schottky diodes with direct-write printed Ag electrodes were able to measure alpha particles emitted from Americium-241. The high temperature and radiation response of the Schottky diodes show their suitability for multi-modal sensor fusion on the 4H–SiC platform for harsh environment applications.

"Fission Product Volatility and Off-Gas Systems for Molten Salt Reactors" N. Dianne Bull Ezell, Guillermo Del Cul, David Holcomb, Kristian Myhre, Amanda Lines, Sam Bryan, Heather Felmy, Brian Riley, Austin Chapel, Joanna Mcfarlane, [2019] · DOI: 10.2172/1560441
"Development of a Corrosion Monitoring System for Advanced Molten Salt Reactors" Roger Kisner, Nicholas Russell, Frederick Reed, James Keiser, Patrick Champlin, Alexander Martin, David Holcomb, N. Bull Ezell, [2019] · DOI: 10.2172/1566970
"A novel use of frequency-banded synthetic aperture focusing technique for reconstructions of alkali-silica reaction in thick-reinforced concrete structures" Austin Albright, Dan Floyd, Dwight Clayton, Lev Khazanovich, N. Dianne Bull Ezell, [2019] A Novel Use of Frequency-banded Synthetic Aperture Focusing Technique for Reconstructions of Alkali-Silica Reaction in Thick-Reinforced Concrete Structures · DOI: 10.1063/1.5099840
"High fidelity ultrasound imaging of concrete structures" Singanallur Venkatakrishnan, Hani Almansouri, Hector Santos-Villalobos, Dan Floyd, Nora Dianne Ezell, [2019] · DOI: 10.1117/12.2514323
"Commercial Design of Custom Front-end Electronics for a High Temperature Fission Chamber" Lorenzo Fabris, Richard Wunderlich, Padhraic Mulligan, Christian Petrie, Charles Britton, Jr., N. Dianne Ezell, [2018] · DOI: 10.2172/1479737
"Design and Irradiation of a Molten Salt Corrosion Experiment in the Ohio State University Research Reactor" N. Dianne Ezell, Kurt Smith, Neil Taylor, Stephen Raiman, A Qualls, Joel McDuffee, [2018] · DOI: 10.2172/1480620
"Evaluation of Flowing Salt Irradiation Facilities with High Neutron Flux" Nesrin Cetiner, N. Dianne Ezell, A. Qualls, Kenneth Thoms, Joel McDuffee, [2018] · DOI: 10.2172/1474548
"A Novel Technique Applying Spectral Estimation to Johnson Noise Thermometry" Chuck Britton, Nance Ericson, David Holcomb, M. J. Roberts, Seddik Djouadi, Richard Wood, N. Dianne Bull Ezell, [2018] Nuclear Technology · DOI: 10.1080/00295450.2018.1452498
"Evaluation of Testing Facilities for a High Temperature Fission Chamber Design" Nesrin Cetiner, N. Ezell, [2018] · DOI: 10.2172/1460199
"DISRUPTION MITIGATION SYSTEM DEVELOPMENTS AND DESIGN FOR ITER" [2015] Fusion Science and Technology
"Recent Fast Neutron Imaging Measurements with the Fieldable Nuclear Materials Identification System" B.A. Palles, J.A. Mullens, J.T. Mihalczo, D.E. Archer, T. Thompson, C.L. Britton, N.D. Bull Ezell, M.N. Ericson, E. Farquhar, R. Lind, J. Carter, T.A. Wellington, [2015] 23rd International Conference on the Application of Accelerators in Research and Industry - CAARI 2014 · DOI: 10.1016/j.phpro.2015.05.054
"JOHNSON NOISE THERMOMETRY FOR DRIFT-FREE MEASUREMENTS" [2014] Proceedings of the Asme Small Modular Reactors Symposium, 2014
"A Precision Dose Control Circuit for Maskless E-Beam Lithography With Massively Parallel Vertically Aligned Carbon Nanofibers" Syed K. Islam, Touhidur Rahman, Nora Dianne Bull, Benjamin J. Blalock, Larry R. Baylor, M. Nance Ericson, Walter L. Gardner, Sazia A. Eliza, [2011] Ieee Transactions on Instrumentation and Measurement · DOI: 10.1109/tim.2010.2090691
"7.4: Dose control circuits for digitally addressable VACNF based maskless lithography" [2010] International Vacuum Nanoelectronics Conference
"Genetically-engineered whole-cell bioreporters on integrated circuits for environmental monitoring" [2008] Proceedings of 2008 Ieee International Symposium on Circuits and Systems, Vols 1-10
"A bioreporter bioluminescent integrated circuit for very low-level chemical sensing in both gas and liquid environments" S.K. Islam, M. Zhang, S. Ripp, S. Caylor, Nora D. Bull, S. Moser, S.C. Terry, B.J. Blalock, G.S. Sayler, R. Vijayaraghavan, [2007] Sensors and Actuators B-Chemical · DOI: 10.1016/j.snb.2006.10.064
Source: ORCID/CrossRef using DOI