Adams, Jamie C. and Mellor, Matthew and Joyce, Malcolm J. (2010) Depth profiling of radiological contamination in sand using Principal Component Analysis. In: IEEE NPSS International Workshop on Real Time Measurement, Instrumentation & Control, 2010-06-252010-06-26, Oshawa, Canada.Full text not available from this repository.
The depth of a caesium-137 radioactive source buried in sand has been determined using Principal Component Analysis. A bespoke phantom filled with fine-grade silica sand has been used. The source was placed in the sand at depths of between 5 to 50mm, using a calibrated source slider. At each depth, γ-ray spectra were recorded at an external face of the phantom using a cadmium telluride γ-ray detector. A model was then developed relating the depth to the output of the Principle Component Analysis. Two principal component vectors have been extracted for each depth spectrum. The angle (θ) between these at each depth is used to derive a function of depth.
|Item Type:||Conference or Workshop Item (Paper)|
|Journal or Publication Title:||IEEE NPSS International Workshop on Real Time Measurement, Instrumentation & Control|
|Subjects:||T Technology > TA Engineering (General). Civil engineering (General)|
|Departments:||Faculty of Science and Technology > Engineering|
|Deposited By:||Mrs Yaling Zhang|
|Deposited On:||02 Mar 2011 16:46|
|Last Modified:||27 Jul 2012 02:14|
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