Structural information from the interference effect of electron-capture X-rays

Y. C. Sasaki*, K. Yasuda, M. Takahashi, I. Satoh, S. Ishiwata

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We observed the interference effect of electron-capture X-rays emitted by the nuclear transformations in radioisotopes. This interference is between the direct monochromatic emission from the radioactive atoms and the emission totally reflected by the substrate surface. Nanometer-level structural information about the radioactive atoms can be obtained by analyzing the measured interference fringes because the period of these fringes depends on the position of the radioactive atoms relative to the substrate surface. In this work, we used the functional protein molecules (myosin subfragment 1(S1)) which were radioiodinated with no carrier added 125I to observe the conformational changes in aqueous solutions.

Original languageEnglish
Pages (from-to)341-344
Number of pages4
JournalJournal of Radioanalytical and Nuclear Chemistry
Issue number2
Publication statusPublished - 1999
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis


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