The DOI matches its Crossref record.
Noninvasive Inspection of C-4 Explosive in Mails by Terahertz Time-Domain Spectroscopy
Open accessAbstract
We have measured the refractive index, extinction coefficient, and absorption coefficient of the explosive C-4 by THz time-domain spectroscopy and examined its applicability to detecting C-4 in mails. The explosive C-4, which is used in almost all mail-bomb terrorist activities, shows six THz bands in the frequency region from 5 to 90 cm -1 (150 GHz–2.7 THz). The 26.9 cm -1 band is very strong and can be used as a fingerprint of C-4. We confirmed that the THz absorption spectrum of C-4 hidden inside an envelope coincides essentially with that of C-4 itself. We also examined the applicability of the THz reflection spectroscopy to C-4 detection by calculating the reflectance spectra. Our results demonstrate that the THz techniques are very promising for counterterrorism against C-4 mail bombs.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
Terahertz Time-Domain Spectroscopy of Solids: A Review
Hangyo, M., Tani, M., & Nagashima, T. (2005) · International Journal of Infrared and Millimeter Waves · doi:10.1007/s10762-005-0288-1 · Cited by 258
Self-citationTerahertz scattering from granular material
Zurk, L. M., Orlowski, B., Winebrenner, D. P., Thorsos, E. I., Leahy-Hoppa, M. R., & Hayden, L. M. (2007) · Journal of the Optical Society of America B · doi:10.1364/josab.24.002238 · Cited by 74
Sundberg, G., Zurk, L. M., Schecklman, S., & Henry, S. (2010) · IEEE Transactions on Geoscience and Remote Sensing · doi:10.1109/tgrs.2010.2048717 · Cited by 37
Osman, O. B., & Arbab, M. H. (2019) · PLOS ONE · doi:10.1371/journal.pone.0216952 · Cited by 27
Kawase, M., Yamamoto, K., Takagi, K., Yasuda, R., Ogawa, M., Hatsuda, Y., Kawanishi, S., Hirotani, Y., Myotoku, M., Urashima, Y., et al. (2013) · Journal of Infrared, Millimeter, and Terahertz Waves · doi:10.1007/s10762-013-9994-2 · Cited by 17
Self-citation
Metadata
- Authors
- Yamamoto, K., Yamaguchi, M., Miyamaru, F., Tani, M., Hangyo, M., Ikeda, T., Matsushita, A., Koide, K., Tatsuno, M., & Minami, Y.
- Venue
- Japanese Journal of Applied Physics
- Publisher
- IOP Publishing
- Published
- 2004-03-05
- Volume
- 43
- Issue
- No. 3B
- Pages
- L414-L417
- ISSN
- 0021-4922 (ISSN-L)
- OpenAlex
- W1995353860
- Cited by
- 211
- References
- 0
- FWCI
- 14.39
- Type
- journal article
- Language
- en
- Open access
- bronze
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Noninvasive Inspection of C-4 Explosive in Mails by Terahertz Time-Domain Spectroscopy. https://app.cochat.ai/papers/10.1143/jjap.43.l414
- The paper
- Yamamoto, K., Yamaguchi, M., Miyamaru, F., Tani, M., Hangyo, M., Ikeda, T., Matsushita, A., Koide, K., Tatsuno, M., & Minami, Y. (2004). Noninvasive Inspection of C-4 Explosive in Mails by Terahertz Time-Domain Spectroscopy. Japanese Journal of Applied Physics. https://doi.org/10.1143/jjap.43.l414
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
