X-ray phase tomography visualizing three-dimensional phase separation structures

Research output: Contribution to journalArticlepeer-review


Conventional X-ray imaging techniques that rely on absorption contrast are not usable effectively for polymer samples, which consist of low-Z elements with low X-ray absorbance. This problem can be overcome by using X-ray phase contrast X-ray phase tomography is realized based on the phase-contrast techniques for highly sensitive three-dimensional polymer observation. Applications of X-ray phase tomography to polymer blend samples are demonstrated to reveal phase-separation structures, allowing quantitative analyses. Note that X-ray phase tomography is possible not only with synchrotron radiation but also with a laboratory X-ray source. In combination with an X-ray imaging microscpe, a spatial resolution of a micron has been achieved in three dimensions. In order to approach a time resolution of a second, X-ray phase tomography with white synchrotron radiation is also being developed; that is, four-dimentional phase tomography.

Original languageEnglish
Pages (from-to)675-676
Number of pages2
Issue number11
Publication statusPublished - 2013 Nov


  • CT
  • Phase contrast
  • Phase separation
  • Polymer blend
  • Tomography
  • X-ray interferometry


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