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- Hiromichi Hoshina
- RIKEN, 519-1399 Aramaki-Aoba, Aoba-ku, Sendai, Miyagi, 980-0845, Japan; and Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
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- Yoshiaki Sasaki
- RIKEN, 519-1399 Aramaki-Aoba, Aoba-ku, Sendai, Miyagi, 980-0845, Japan; and Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
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- Aya Hayashi
- RIKEN, 519-1399 Aramaki-Aoba, Aoba-ku, Sendai, Miyagi, 980-0845, Japan; and Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
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- Chiko Otani
- RIKEN, 519-1399 Aramaki-Aoba, Aoba-ku, Sendai, Miyagi, 980-0845, Japan; and Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
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- Kodo Kawase
- RIKEN, 519-1399 Aramaki-Aoba, Aoba-ku, Sendai, Miyagi, 980-0845, Japan; and Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
説明
<jats:p> Using the high penetrability of the terahertz waves and the characteristic absorption spectra in this frequency range, we have built a noninvasive mail inspection system targeting drugs and explosives. The system is composed of two stages; in the first stage, the scattering of a continuous terahertz wave is used for selecting mail that contains concealed powder; in the second stage, the absorption spectrum of the suspicious mail is measured and the material is identified using a terahertz spectrum database. We evaluated the performance and the limits of the inspection system. </jats:p>
収録刊行物
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- Applied Spectroscopy
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Applied Spectroscopy 63 (1), 81-86, 2009-01
SAGE Publications