3D X-ray micro-tomography for modeling of NB

Ion Tiseanu, Teddy Craciunescu, Traian Petrisor, Antonio Della Corte

Research output: Contribution to journalArticle

8 Citations (Scopus)


Practical superconducting cables used in large scale applications (e.g. magnets for fusion reactor) consist in superconducting filaments embedded in a normal-conducting matrix. The common technique to reduce the eddy-current losses is to twist the wire and the filaments during the manufacture. This also reduces the time-independent proximity effect between the filaments and its associated loss. Currently, the only method for measuring the twist-pitch consists in evidencing the twisted structure by etching techniques. This method is destructive and does not permit the visualization of the filaments. It is proved in this paper that X-ray micro-tomography permit the non-destructive reconstruction of the 3D image of the ITER-type multifilamentary wire enabling the determination of the number of inter-filament contacts on unite lengths well as the twist-pitch parameter. This can be used to develop a more complex model of the multifilamentary superconducting wire in order to explain the role of the internal wire structure on the superconducting transport properties. © 2006 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)1447 - 1453
Number of pages7
JournalFusion Engineering and Design
Issue number5-14
Publication statusPublished - Oct 2007
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Tiseanu, I., Craciunescu, T., Petrisor, T., & Corte, A. D. (2007). 3D X-ray micro-tomography for modeling of NB. Fusion Engineering and Design, 82(5-14), 1447 - 1453. https://doi.org/10.1016/j.fusengdes.2006.11.003