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CSpace
Study on terahertz spectrum variation of inner package with different wrapped objects
Wang, Jie1,2; Yan, Shihan2,3; Peng, Liang1; Zhang, Hua2,3,4; Zhu, Lianghong5,6; Long, Sha5,6; Wu, Hao7; Zhang, Xiaoxuan8
2023-05-01
摘要Terahertz (THz) nondestructive testing has emerged as a promising tool for public security check due to its superior detection accuracy and sensitivity for hidden objects under clothing. However, it is unknown if material composition and textile structure of clothing will influence the THz spectrum of the hidden objects. In this paper, the THz time domain spectroscopy (THz-TDS) was used to detect several natural and artificial fabrics containing pure amino acids with characteristic absorption peaks between 0.2 and 1.6 THz. The results show that the absorption peaks of AAs of various cloth materials have different degrees of decrease and redshift. In addition, the absorption peaks of the THz spectrum disappear when the textile structure is destroyed. Moreover, the simulation results also verify that the textile structure has an obvious effect on the THz field distribution. In this sense, it is necessary to analyze the material composition and textile structure when detecting hidden objects under clothing using the THz signal.
关键词THz-TDS material composition textile structure influence absorption peaks
DOI10.1177/15280837231178566
发表期刊JOURNAL OF INDUSTRIAL TEXTILES
ISSN1528-0837
卷号53页码:15
通讯作者Zhang, Hua(zhanghua@cigit.ac.cn) ; Long, Sha(sha_long12@163.com)
收录类别SCI
WOS记录号WOS:000994212700001
语种英语