Terahertz tomography is an advanced imaging technique that utilizes terahertz (THz) radiation, which lies between the microwave and infrared regions of the electromagnetic spectrum. This non-invasive and non-destructive method allows for the examination of the internal structures of objects. Unlike X-rays, terahertz radiation is safe for people and does not require extra protection. It penetrates various non-metallic materials, such as ceramics, plastics, and textiles, making it ideal for applications in quality control and security screening. In a typical terahertz tomography setup, a sample is exposed to terahertz waves, and the transmitted or reflected signals are captured to construct a three-dimensional image, which reveals the internal features of the object.

In the video, the transmitter and the detector are in fixed positions while the object is first moved laterally and then rotated to capture projections from multiple angles. These obtained projections are compiled into the sinogram, which contains all the necessary information to reconstruct a detailed three-dimensional image.


Ruhr-Universität Bochum
Fakultät für Elektrotechnik und Informationstechnik
Lehrstuhl für Photonik und Terahertztechnologie
Postfach ID 16
Universitätsstraße 150
D-44801 Bochum


Raum: ID 04/327
Telefon: (+49) (0) 234 32 - 23051
Fax: (+49) (0) 234 32 - 14167 
E-Mail: ptt+office(at)rub.de
RUB  LageplanAnreise


Prof. Dr.-Ing. Martin Hofmann
Raum: ID 04/329
Te­le­fon: (+49) (0) 234 32 - 22259
Fax: (+49) (0) 234 32 - 14167
E-Mail: martin.hofmann(at)rub.de

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