Lancaster EPrints

Depth profiling of radiological contamination in sand using Principal Component Analysis.

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.

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Abstract

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
ID Code: 39866
Deposited By: Mrs Yaling Zhang
Deposited On: 02 Mar 2011 16:46
Refereed?: Yes
Published?: Published
Last Modified: 24 Jan 2014 06:14
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/39866

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