| Item type |
文献 / Documents(1) |
| 公開日 |
2018-11-12 |
| アクセス権 |
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アクセス権 |
open access |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 出版社版DOI |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1038/srep28114 |
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言語 |
ja |
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関連名称 |
10.1038/srep28114 |
| 出版タイプ |
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|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| タイトル |
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|
タイトル |
Dynamic terahertz spectroscopy of gas molecules mixed with unwanted aerosol under atmospheric pressure using fibre-based asynchronous-optical-sampling terahertz time-domain spectroscopy |
|
言語 |
en |
| 著者 |
謝, 宜達
ナカムラ, ショウタ
Abdelsalam, Dahi Ghareab
南川, 丈夫
水谷, 康弘
山本, 裕紹
岩田, 哲郎
Hindle, Francis
安井, 武史
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Terahertz (THz) spectroscopy is a promising method for analysing polar gas molecules mixed with unwanted aerosols due to its ability to obtain spectral fingerprints of rotational transition and immunity to aerosol scattering. In this article, dynamic THz spectroscopy of acetonitrile (CH3CN) gas was performed in the presence of smoke under the atmospheric pressure using a fibre-based, asynchronous-optical-sampling THz time-domain spectrometer. To match THz spectral signatures of gas molecules at atmospheric pressure, the spectral resolution was optimized to 1 GHz with a measurement rate of 1 Hz. The spectral overlapping of closely packed absorption lines significantly boosted the detection limit to 200 ppm when considering all the spectral contributions of the numerous absorption lines from 0.2 THz to 1 THz. Temporal changes of the CH3CN gas concentration were monitored under the smoky condition at the atmospheric pressure during volatilization of CH3CN droplets and the following diffusion of the volatilized CH3CN gas without the influence of scattering or absorption by the smoke. This system will be a powerful tool for real-time monitoring of target gases in practical applications of gas analysis in the atmospheric pressure, such as combustion processes or fire accident. |
|
言語 |
en |
| 書誌情報 |
en : Scientific Reports
巻 6,
p. 28114,
発行日 2016-06-15
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| 収録物ID |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
20452322 |
| 出版者 |
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出版者 |
Springer Nature |
|
言語 |
en |
| 備考 |
|
|
言語 |
ja |
|
値 |
Supplementary Information : srep_6_28114_s1.pdf
Supplementary Video : srep_6_28114_s2.mov |
| 権利情報 |
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|
言語 |
en |
|
権利情報 |
This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| EID |
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識別子 |
313994 |
|
識別子タイプ |
URI |
| 言語 |
|
|
言語 |
eng |
srep_6_28114.pdf (1.47 MB)
.png)
srep_6_28114_s2.mov (646 KB)
