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|Title:||Non-destructive tomographic inspection of pipeline and landmine detection using scattering of gamma photons|
Sandhu, B S
|Abstract:||A scanner system is presented for pipeline inspection and detection of explosives (landmines). The portable system detects the type of liquid flowing through the pipe, its location in land soil and crack position. The method is quite sensitive for small change (~0.1 g-cm<sup><span style="font-family:Symbol; mso-ascii-font-family:" times="" new="" roman";mso-hansi-font-family:"times="" roman";="" mso-char-type:symbol;mso-symbol-font-family:symbol"="" lang="EN-GB">-3</span></sup>) in the density of liquid flowing through the pipe and locating defect of 1 mm width under insulation. The explosives (landmines) such as TNT (C<sub>7</sub>H<sub>5</sub>N<sub>3</sub>O<sub>6</sub>) and RDX (C<sub>3</sub>H<sub>6</sub>N<sub>6</sub>O<sub>6</sub>) have density less than that of various types of soils and therefore, a measurement of density helps to detect the presence of landmine. The explosive simulating phantom is buried at depth of ~2 cm in soil, so the photons have to penetrate this much distance before interacting with buried material. The scattered intensity originating from interactions of photons with the phantom has the potential to detect the presence of landmine.|
|ISSN:||0975-1041 (Online); 0019-5596 (Print)|
|Appears in Collections:||IJPAP Vol.50(11) [November 2012]|
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