Sensors & Electronics
Physical Property Sensors
Mapping RF Energy Absorption in "Tissue" (202)
Ambient Light Image of Hand PhantomProblem: Need reliable method to map and measure RF energy absorption in people without human exposure
Project Activity Scope (from Technical Overview Chart): Mechanisms through Sensors and Devices
PNNL Solution:
- Used active material that emits light when stimulated by absorbed RF energy (chemiluminescence, USAF collaborator development)
- Developed optically transparent "phantoms" to fill with active material
- Spatial distribution & intensity of emitted light showed where rf/radar beam energy is absorbed in phantom
Low-Light Image of Optical Emission from Hand Phantom — Image Analysis Yields Spatial Distribution of Absorbed RF Energy
Capabilities Employed to Meet Client Needs: Low light imaging; radiometry; digital image processing; software development; radio frequency antenna design; phantom design and fabrication; optical engineering; mechanical engineering; electrical engineering including PC-based control system and data acquisition system; system integration, validation, and installation in client lab; system documentation.
Contact: Michael Lind
