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Profiling the depth of caesium-137 contamination in concrete via a relative linear attenuation model
Alan Shippen1, Malcolm J Joyce
1Department of Engineering, Lancaster University, UK. b.a.shippen@lancaster.ac.uk
Abstract:
An application of the relative attenuation of X rays and gamma rays for the measurement of depth of radioactive contamination in concrete and is described, based upon the photon energy spectrum of caesium-137. This has been tested on two bespoke phantoms with pressed/cast concrete and silica sand highlighting the potential for sub-millimetre depth resolution. This research highlights the importance of the ease of calibration, prior to application in the field, and improved knowledge of materials composition in legacy facilities.
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