Shippen, B. A. and Joyce, Malcolm J. (2007) Profiling the gamma-ray distribution of the cement lining of an established nuclear pond as a function of depth. In: European Nuclear Congress, 2007-09-162007-09-20, Brussels, Belgium.Full text not available from this repository.
An investigation to determine the relationship between the depth of contamination within the concrete lining of a nuclear pond and the ratio of x-ray to gamma-ray photopeak intensity obtained from sodium iodide detector is described. The environment was simulated using established radiation transport codes. Caesium-137 is assumed to be the sole source of contamination. A detector was simulated across the energy spectrum of a source, and rastered across its location from ±10cm at intervals of 0.5cm. A combination of point and distributed sources were simulated within a concrete structure, as well as in free air to create a comprehensive set of data. The results were then validated against experimental data and demonstrate a high level of agreement. This investigation indicates that the x-ray / gamma-ray ratio has the potential to localise contamination on the surface of the concrete lining; further investigation is required to locate the contamination in three dimensions.
|Item Type:||Conference or Workshop Item (Paper)|
|Journal or Publication Title:||European Nuclear Congress|
|Subjects:||T Technology > TA Engineering (General). Civil engineering (General)|
|Departments:||Faculty of Science and Technology > Engineering|
|Deposited By:||Mrs Yaling Zhang|
|Deposited On:||25 Feb 2011 10:34|
|Last Modified:||27 Jul 2012 02:14|
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