Publications

Sep, 2026

Conference Paper

From Commissioning to Precision Data-Taking: Resolving Operational Challenges in the Nab Detector Systems

Our understanding of the weak mixing of quarks, described by the Cabibbo-Kobayashi-Maskawa (CKM) matrix, currently presents an anomaly. Thanks to major strides in both theory and experiment, improved precision in determinations of the first row of matrix elements has revealed disagreement with the expectation of unitarity. The Nab experiment at the Spallation Neutron Sourc…

Jul, 2026

ORNL Report

Seal Wire Verifier System Environmental Test Plan

Nov, 2025

ORNL Report

Implementation of Johnson Noise Thermometry into Radiation Hardened Electronics

Jan, 2025

ORNL Report

Wireless System Development for GaN-Based Transmitters for Advanced Nuclear Reactor Environments

Sep, 2024

ORNL Report

Report on Results of GaN HEMT and Radiation Tolerance and Temperature Testing

Jun, 2024

Journal

Fast Neutron Irradiation of a Multichannel JFET-Based Optical Encoder

Modern electrical components are susceptible to damage from high levels of radiation and extreme temperatures found near reactors in terrestrial nuclear power plants and in aerospace applications. Radiation-hardened electronics are being developed, largely for the aerospace industry, but they sometimes rely on application-specific, small-batch semiconductor fabrication pro…

Dec, 2023

Journal

Irradiation-induced Degradation of Surface Acoustic Wave Devices Fabricated on Bulk AlN

Here, recent work to evaluate the prospects for surface acoustic wave (SAW) devices fabricated on bulk aluminum nitride (AlN) for elevated temperature and radiation environments is reported and discussed. The design and fabrication of an array of SAW devices using commercial wafers is described, including the non-standard fabrication approach taken to overcome the stress-i…

Dec, 2023

Journal

Self-powered Through-wall communication for dry cask storage monitoring

Many nuclear facilities, such as spent fuel storage dry casks and nuclear reactor pressure vessels, are entirely sealed by metal layers to prevent harmful radiation. For safety and security operations, the temperature, pressure, radiation, and humidity inside the vessel needs to be closely monitored. However, no practical technology is currently available to realize the th…

Dec, 2023

ORNL Report

Radiation Hardened Instrumentation, Sensors and Electronics

Dec, 2023

Conference Paper

Radiation-Hard Electronics for Nuclear Instrumentation in Terrestrial Reactors

Dec, 2023

Conference Paper

Development of an in-situ corrosion monitor for molten salt reactors

A novel in-situ corrosion sensor for structural alloys exposed to molten salts has been initially demonstrated. The measurement is based upon observing the change in magnetic susceptibility of salt wetted structural alloys as corrosion occurs. In halide salts corrosion of structural alloys proceeds primarily through dissolution of the least noble component of the alloy int…

Dec, 2023

ORNL Report

Development of a Corrosion Monitoring System for Advanced Molten Salt Reactors