System Design and Evaluation of a Compact and High Energy X-ray Talbot-Lau Grating Interferometer for Industrial Applications
- 45 Downloads
X-ray grating interferometry has been an active area of research in recent years. In particular, various studies have been carried out for the practical use of the x-ray grating interferometer in medical and industrial fields. For the commercialization of the system, it needs to be optimized for its application. In this study, we have developed a prototype of the compact high energy x-ray grating interferometer of which the high effective energy and compactness is of our primary feature of design. We have designed the Talbot-Lau x-ray interferometer in a symmetrical geometry with an effective energy of 54.3 keV. The system has a source-to-analyzer grating distance of 788.4 mm, which is compact enough for a commercial product. In a normal operation, it took less than ten seconds to acquire a set of phase stepping images. The acquired images had a maximum visibility of about 15%, which is relatively high compared with the visibilities of the other high-energy grating interferometric systems reported so far.
KeywordsX-ray phase contrast imaging Talbot-Lau interferometry High energy phase contrast imaging Dark-field imaging compact design
Unable to display preview. Download preview PDF.
- S. W. Lee et al., J. Korean Phys. Soc. 71, 9 (2017).Google Scholar
- F. Pfeiffer, T. Weitkamp, O. Bunk and C. David, Nat. Phys. Lett. 81, 3287 (2002).Google Scholar
- F. Horn, C. Hauke, S. Lachner, V. Ludwig, G. Pelzer et al., Proc. of SPIE 9783, 97830 (2016).Google Scholar
- C. Hauke, F. Horn, G. Pelzer, J. Rieger, S. Lachner et al., Proc. of SPIE 9783, 97835 (2016).Google Scholar
- A. Momose, W. Yashiro and Y. Takeda, Jpn. J. Appl. Phys. 47, 10 (2008).Google Scholar
- T. Koelhler, H. Daerr, G. Martens, N. Kuhn, S. Loscher et al., Med. Phys. 42, 4 (2015).Google Scholar