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Sensors & Electronics

Nuclear Radiation Sensors

Fieldable Sensor for Radionuclides in Water (222)

Problem: Need reliable sensor system for field measurement of radionuclide concentrations in groundwater.

Photo of sensor cell and laboratory test of integrated sensor system

Project Activity Scope (from Technical Overview Chart): Sensors and Devices through Instruments

PNNL Solution:

  • Use proven sensing method with selective preconcentration of target analyte and efficient detection of decay events (implemented for Tc-99)
  • Combine with superior detection and signal processing electronics
  • Successfully integrated system and completed field demonstration
  • Adaptable for other radionuclides

Capabilities Employed to Meet Client Needs: Chemical interactions with selective materials; integrated preconcentrator/sensor cell design to provide efficient Tc-99 collection & sensing; sensor cell interface design for efficient detection of decay events; integrated fluidics system design; sensor performance characterization; detection system design for efficient event detection & minimization of background count levels; mechanical design of integrated system; electronics design for signal processing, background reduction, controls, & communication; software development for controls, data processing, communications, and data reporting.

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Contact: Scott Morris

Sensors & Electronics

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Nuclear Radiation Sensors

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