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9 November 2018 Terahertz computed tomography of high-refractive-index object based on a novel experimental procedure
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Abstract
Recently, terahertz (THz) computed tomography (CT) has emerged as a possible effective technique for 3D structural information detection. However, THz-CT is difficult to be applied to high refractive index object, due to the severe refraction phenomenon occurred during the acquisition of raw data. We propose a novel experimental procedure to solve this problem. Including the use of a sink filled with liquid whose refractive index is close to the sample, and a correction algorithm to eliminate the noise of liquid. The proposed method is applied to the high-density polyethylene samples of different shapes.
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Linyu Chen, Yuye Wang, Degang Xu, Jia Shi, Yuchen Ren, Changzhao Li, Chao Zhang, Longhuang Tang, Yixin He, and Jianquan Yao "Terahertz computed tomography of high-refractive-index object based on a novel experimental procedure", Proc. SPIE 10826, Infrared, Millimeter-Wave, and Terahertz Technologies V, 108260Z (9 November 2018); https://doi.org/10.1117/12.2500717
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