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학술지 Food Inspection System Using Terahertz Imaging
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저자
이원희, 이왕주
발행일
201405
출처
Microwave and Optical Technology Letters, v.56 no.5, pp.1211-1214
ISSN
0895-2477
출판사
John Wiley & Sons
DOI
https://dx.doi.org/10.1002/mop.28303
초록
A terahertz (THz) transmission imaging system using a 0.2 and 0.4 THz gyrotron as a high power source was evaluated. In the gyrotron, 0.2 THz is the first main mode and 0.4 THz is the second harmonic mode. The output power of gyrotron is about 100 W at 0.2 THz and 1 W at 0.4 THz. For fast imaging, the source output was shaped into a line beam and an array detector was used. Two reflecting mirrors were utilized for a reflective imaging system. A 0.8 mm resolution was obtained using a 0.4 THz transmission image. The feasibility of fast THz imaging for the inspection of foreign substances in food is demonstrated. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1211-1214, 2014 Copyright © 2014 Wiley Periodicals, Inc.
키워드
food inspection system, imaging svstem, gyrotron, reflecting mirror, resolution, terahertz transmission
KSP 제안 키워드
Array detector, Fast Imaging, Food inspection, Harmonic mode, Line beam, Output power, Reflecting mirror, Reflective imaging, THz gyrotron, THz imaging, Terahertz imaging