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7 May 2009 Liquid explosive detection from outside of the bottle by IR
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Liquid explosives have been used in terrorism recently. Inspection of bottles becomes very important, because these liquid explosive or it raw materials can be carried by bottles easily. Hydrogen peroxide is typical raw materials of liquid explosives. It was difficult to evaluate concentration of hydrogen peroxide in the drink in the bottle, because of similarity of its optical properties to those of water. Using near infrared spectrum and multivariate statistical analysis, concentration of percent order of hydrogen peroxide in the bottle can be evaluated from outside of the bottle instantly. Hydrogen peroxide has been detected in not only a clear PET or glass bottle but also a colored glass bottle. Hydrogen peroxide mixed by soft drink such as coke or orange juice with pulp also detected by this method easily. This technique can be applied to inspection of a bottle at airport security so on.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hideo Itozaki and Yuji Yamauchi "Liquid explosive detection from outside of the bottle by IR", Proc. SPIE 7298, Infrared Technology and Applications XXXV, 72983X (7 May 2009);

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