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Portable gamma-ray tomography instrumentation for investigating corrosion under insulation of pipelines

Susiapan, Yvette Shaan-Li and Abdul Rahim, Ruzairi and Pusppanathan, Jaysuman and Mohd. Zain, Rasif (2009) Portable gamma-ray tomography instrumentation for investigating corrosion under insulation of pipelines. In: Proceedings of the 13th WSEAS International Conference on Circuits - Held as part of the 13th WSEAS CSCC Multiconference. World Scientific And Engineering Acad And Soc, Athens, Grece, pp. 168-171. ISBN 978-960474096-3

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Abstract

The objective of this research endeavor is to develop a Portable Gamma-ray Tomography Instrumentation for investigating corrosion under insulation of pipelines. Gamma ray densitometry is a non- destructive method for determining the density. The principle of gamma ray tomography measurement is based on the absorption of gamma radiation in the tested material. The scanning is performed using a small radioactive source and a sensitive electronic detector. The source and detector are kept external to the pipe and positioned on opposite sides at a fixed distance apart. Gamma rays travel from the source through the pipe to the detector where they are counted. The research covers the hardware design, implementation of measurement electronics as well as the software to receive the intensity counts, convert and display a tomographic image that corresponds correctly to the pipe condition of the pipe being scanned. The research concentrates on pipe condition and not the flow in the pipe. The collected data in the form of intensity is converted to a suitable signal and input in offline mode to produce a tomogram.

Item Type:Book Section
Additional Information:13th WSEAS International Conference on Circuits - Held as part of the 13th WSEAS CSCC Multiconference; Rodos; 22 July 2009 through 24 July 2009
Uncontrolled Keywords:corrosion under insulation, corrosion under insulations, electronic detectors, gamma radiation, gamma ray densitometry, gamma ray tomography, hardware design, instrumentation, nondestructive methods, offline modes, radioactive sources, tomographic images
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:13061
Deposited By: Mrs Liza Porijo
Deposited On:15 Jul 2011 01:38
Last Modified:15 Jul 2011 01:38

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