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Electromagnetic material changes for remote detection and monitoring: a feasibility study: Progress report

Technical Report ·
DOI:https://doi.org/10.2172/990598· OSTI ID:990598
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A new concept for radiation detection is proposed, allowing a decoupling of the sensing medium and the readout. An electromagnetic material, such as a magnetic ceramic ferrite, is placed near a source to be tracked such as a shipping container. The electromagnetic material changes its properties, in this case its magnetic permeability, as a function of radiation. This change is evident as a change in reflection frequency and magnitude when probed using a microwave/millimeter-wave source. This brief report discusses modeling of radiation interaction of various candidate materials using a radiation detector modeling code Geant4, system design considerations for the remote readout, and some theory of the material interaction physics. The theory of radiation change in doped magnetic insulator ferrites such as yttrium iron garnet (YIG) seems well founded based on literature documentation of the photomagnetic effect. The literature also suggests sensitivity of permittivity to neutrons in some ferroelectrics. Research to date indicates that experimental demonstration of these effects in the context of radiation detection is warranted.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
990598
Report Number(s):
PNNL-18863; NN2001000
Country of Publication:
United States
Language:
English

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Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CERAMICS
DECOUPLING
DETECTION
ELECTROMAGNETISM
FERRITE
FERRITE GARNETS
FERRITES
MAGNETIC SUSCEPTIBILITY
MONITORING
NEUTRONS
PERMITTIVITY
PHYSICS
PROGRESS REPORT
RADIATION DETECTION
RADIATION DETECTORS
RADIATIONS
REFLECTION
SENSITIVITY
VISIBLE RADIATION
YTTRIUM
radiation detection
electromagnetic materials
millimeter wave technology
magnetic ceramics