Analysis of THz scattering of compacted granular materials using THz-TDS

Murphy, Keir N. and Naftaly, Mira and Nordon, Alison and Markl, Daniel; (2022) Analysis of THz scattering of compacted granular materials using THz-TDS. In: 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz). IEEE, Piscataway, N.J.. ISBN 9781728194271 (https://doi.org/10.1109/irmmw-thz50927.2022.989579...)

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Abstract

Scattering of terahertz radiation in compacts is of great interest due to its potential to non-destructively assess various structural elements such as particle size and defects in compacts. In this study, we isolate the scattering contributions to the loss coefficient of borosilicate glass microspheres suspended in a polytetrafluoroethylene (PTFE) compact measured by terahertz time-domain spectroscopy. The particle size and concentration of microspheres in the compacts were varied to resolve their effect on terahertz scattering.

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