Ultrasound Sensors and Methods for Nuclear Power Plant Environments | Ge[o]rges Dib

Ultrasound Sensors and Methods for Nuclear Power Plant Environments

Schematic of nuclear power plant components which require monitoring using NDE techniques.

Schematic of nuclear power plant components which require monitoring using NDE techniques.

This is a topic co project focuses on demonstration of ultrasound sensing technology and techniques for various applications related to nuclear power plant life cycle, next generation advanced reactors, and radiation monitoring at border portals. The focus of this research has been on:

  • Assessment of conventional ultrasound and non-linear ultrasound non-destructive evaluation techniques capable of detecting impending damage before crack formation. This project focuses on creep and fatigue damage modalities in nuclear power plants.
  • Development of high temperature ultrasound sensor probes, capable of withstanding temperatures up to 550 C for extended period of time. Also, the sensors are designed to be capable of reliable damage detection in sodium coolants.
  • Assessment of ultrasound inspection reliability under challenging environments, and sensor calibration and methods for compensating sensor aging.
  • Water detection in spent fuel dry cask storage canisters.
  • Fog detection in PVT scintillators used at border portals for radiation detection. Fog build up in those plastic detectors reduce their sensitivity. We assessed ultrasound techniques for predicting fogging levels in the detectors.
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Gerges Dib
Research Scientist

Interested in artificial Intelligence and machine learning.

Publications

Second harmonic generation using nonlinear ultrasonic waves have been shown to be an early indicator of possible fatigue damage in …

As the nation’s nuclear fleet looks to life extension, advanced reactor (AdvRx) concepts are being considered as alternatives that may …

Advanced reactor concepts include fast reactors (including sodium-cooled fast reactors), gas-cooled reactors, and molten-salt reactors. …

Enhanced risk monitors (ERMs) for active components in advanced reactor concepts use predictive estimates of component failure to …

As the United States transitions to storing used fuel from commercial nuclear reactors in interim dry storage facilities for extended …

Under certain environmental conditions, polyvinyl toluene (PVT) plastic scintillator has been observed to undergo internal fogging. …

The harsh environments in advanced reactors (AdvRx) increase the possibility of degradation of safety-critical passive components, and …

Information on advanced reactor (AdvRx) component condition and failure probability is necessary to maintaining adequate safety margins …

This milestone report presents an update on the state-of-the-art review and research being conducted to identify key indicators of …

This report describes research results to date in support of the integration and demonstration of diagnostics technologies for …
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