Published 11-06-2023
Keywords
- NDT,
- Terahertz,
- Spectroscopy,
- Imaging,
- Coating
How to Cite
Copyright (c) 2023 Journal of Non-Destructive Testing and Evaluation (JNDE)
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Abstract
For the past twenty years, TeraView has been a world leader in the application of terahertz pulses to solve problems for industry.Terahertz technology provides the opportunity of remote, safe, fast and accurate sensing. In recent years, there has been a growing interest from industry in applying terahertz pulses to process control.In this paper, there is a brief review of the generation and detection of terahertz waves (0.1 THz to 6THz) using photoconductive antennas.The applications of time-domain spectroscopy to gas, liquid and solids are discussed.Then, a number of industrial applications ofterahertz pulsed imaging such as solar cells, pharmaceutical, battery production and automotive industries are highlighted.
References
- P. F. Taday, M. Pepper, and D. D. Arnone.“Selected Applications of Terahertz Pulses in Medicine and Industry.” Applied Sciences 12, no. 12(2022): 6169.
- D. H. Auston. “Picosecond optoelectronic switching and gating in silicon.” Applied Physics Letters 26, no. 3 (1975): 101-103.
- M. Suzuki, and M. Tonouchi. “Fe-implanted InGaAs terahertz emitters for 1.56 μm wavelength excitation.” Applied Physics Letters 86, no. 5 (2005): 051104.
- P. U. Jepsen,R. H. Jacobsen, and S. R. Keiding. “Generation and detection of terahertz pulses from biased semiconductor antennas.” JOSA B 13, no. 11 (1996): 2424-2436.
- W. Aenchbacher, M. Naftaly, and R. Dudley. “Line strengths and self-broadening of pure rotational lines of carbon monoxide measured by terahertz time-domain spectroscopy.” Applied Optics 49, no. 13 (2010): 2490-2496.
- R.A. Cheville, and D. Grischkowsky.“Far-infrared foreign and self-broadened rotational linewidths of high-temperature water vapour.”Journal of the Optical Society of America B 16, no. 2 (1999): 317-322.
- M. V. Exterm, Ch. Fattinger, and D. Grischkowsky.“Terahertz time-domain spectroscopy of water vapour.” Optics Letters 14, no. 20 (1989): 1128-1130.
- Y. C. Shen, P. F. Taday, and M. Pepper. “Elimination of scattering effects in spectral measurement of granulated materials using terahertz pulsed spectroscopy.” Applied Physics Letters 92, no. 5 (2008): 051103.
- T. Bardon, R. K. May, P. F. Taday, and M. Strlič. “Influence of particle size on optical constants from pellets measured with terahertz pulsed spectroscopy.” IEEE Transactions on Terahertz Science and Technology 6, no. 3 (2016): 408-413.
- P. F. Taday, I. V. Bradley, D. D. Arnone, M. Pepper. “Using Terahertz pulse spectroscopy to study the crystalline structure of a drug: a case study of the polymorphs of ranitidine hydrochloride.”Journal of Pharmaceutical Sciences 92, no. 4(2003):831-8.
- C.J. StrachanP. F. Taday, D. A. Newnham, K. C. Gordon, J. A. Zeitler,M. Pepper, and T. Rades.“Using terahertz pulsed spectroscopy to quantify pharmaceutical polymorphism and crystallinity”,Journal ofPharmaceutical Sciences 94, no. 4(2005): 837-846.
- J. A. Zeitler, K. Kogermann, J. Rantanen, T. Rades, P. F. Taday, M. Pepper, J. Aaltonen, and C. J. Strachan. “Drug hydrate systems and dehydration processes studied by terahertz pulsed spectroscopy.”International journal of pharmaceutics 334, no. 1 (2007): 78-84.
- J.Sibik, M. J. Sargent, M. Franklin, and J. A. Zeitler. “Crystallization and phase changes in paracetamol from the amorphous solid to the liquid phase.” Molecular Pharmaceutics 11, no. 4 (2014): 1326-1334.
- J. Sibik, K. Löbmann, T. Rades, and J. A. Zeitler. “Predicting crystallization of amorphous drugs with terahertz spectroscopy.” Molecular pharmaceutics 12, no. 8 (2015): 3062-3068.
- M. T. Ruggiero. “Editorial Introduction to the Special Issue: Interpretation of Solid-State Terahertz Spectra.” Journal of Infrared, Millimeter, and Terahertz Waves 41 (2020): 1281-1283.
- M. T. Ruggiero. “Invited review: Modern methods for accurately simulating the terahertz spectra of solids.” Journal of Infrared, Millimeter, and Terahertz Waves 41, no. 5 (2020): 491-528.
- A. J. Fitzgerald, B. E. Cole and P. F. Taday.“Nondestructive analysis of tablet coating thicknesses using terahertz pulsed imaging”, Journal of Pharmaceutical Sciences 94, no. 1(2005):177-83.
- J. A. Zeitler, Y. Shen, C. Bake, P. F. Taday, M. Pepper, T. Rades.“Analysis of coating structures and interfaces in solid oral dosage forms by three-dimensional terahertz pulsed imaging.”Journal of Pharmaceutical Sciences96, no. 2(2007):330-40.
- J. A. Spencer, Z. Gao, T. Moore, L. F. Buhse, P. Taday, D. A. Newnham, Y. Shen, A. Portieri, A. Husain.“Delayed Release Tablet Dissolution Related to Coating Thickness by Terahertz Pulsed Image Mapping.”Journal of Pharmaceutical Science 97, no.4(2008): 1543-1550.
- L. Ho, R. Müller, K. C. Gordon, P. Kleinebudde, M. Pepper, T. Rades, Y. Shen, P. F. Taday, J. A. Zeitler.“Monitoring the film coating unit operation and predicting drug dissolution using terahertz pulsed imaging.”Journal of Pharmaceutical Sciences98, no. 12 (2009):4866-76.
- K. M. Robert, K. Su, L. Han, Sh. Zhong, J. A. Elliott, L. F. Gladden, M. Evans, Y. Shen, J. A. Zeitler.“Hardness and Density Distributions of Pharmaceutical Tablets Measured by Terahertz Pulsed Imaging.”Journal of Pharmaceutical Sciences102, no. 7 (2013):2179–2186.
- L. Ho, R. Müller, M. Römer, K.C. Gordon, J. Heinämäki, P. Kleinebudde, M. Pepper, T. Rades, Y.C. Shen, C.J. Strachan, P.F. Taday, J.A. Zeitler.“Analysis of Sustained-Release Tablet Film Coats using Terahertz Pulsed Imaging.”Journal of Controlled Release 119, no. 3(2007): 253-261.
- R. K. May, M. J. Evans, S. Zhong, I. Warr, L. F. Gladden, Y. Shen, J. A. Zeitler.“Terahertz in-line sensor for direct coating thickness measurement of individual tablets during film coating in real-time.”Journal of Pharmaceutical Sciences 100, no. 4 (2011):1535-44.
- Pei, Chunlei, Hungyen Lin, Daniel Markl, Yao-Chun Shen, J. Axel Zeitler, and James A. Elliott. “A quantitative comparison of in-line coating thickness distributions obtained from a pharmaceutical tablet mixing process using discrete element method and terahertz pulsed imaging.” Chemical Engineering Science 192 (2018): 34-45.
- F. Zarrinkhat, A. Pentland, C. Reynolds, E. Kendrick and P. F. Taday.“Using terahertz time-domain spectroscopy to measure coating thickness and density on Li-ion electrodes.”48th IRMMW-THz Conference, submitted, Montreal, Canada, Sep. 17-22, 2023.
- F. Zarrinkhat, A. Pentland, P. F. Taday, and H. Geary.“Thickness measurement of Niobium-based anode using terahertz pulses.” Faraday Institution Conference, submitted, Birmingham, UK, Sep. 11-12, 2023.
- F. Zarrinkhat, B. Cole, A. Pentland, and P. F. Taday.“Self-referencing reflection sensor for industrial applications.” 48th IRMMW-THz Conference, submitted, Montreal, Canada, Sep. 17-22, 2023.
- F. Zarrinkhat, A. Pentland, C. Reynolds, E. Kendrick, and P. F. Taday.“The Measurement of the Coating Uniformity of Lithium Iron Phosphate Cathodes on Metal Substrates with Terahertz Time-domain Spectroscopy.” 48th IRMMW-THz Conference, submitted, Montreal, Canada, Sep. 17-22, 2023.
- T. Misovski, I. Geogory, and Ma. Nichols, “Use of terahertz-based sensing to quantify layer thickness in automotive paint system.” SAE conference, April 2022.
- S. Krimi, J. Klier, J. Jonuscheit, G.V. Freymann, R. Urbansky, and R. Beigang. “Highly accurate thickness measurement of multi-layered automotive paints using terahertz technology.” Applied Physics Letters 109, no. 2 (2016): 021105.
- J. L. van Mechelen, A. B. Kuzmenko, and H. Merbold. “Stratified dispersive model for material characterization using terahertz time-domain spectroscopy.” Optics Letters 39, no. 13 (2014): 3853-3856.