A graphite-based multilayer mirror for microscopy in the XANES region of biomolecules

Koumei Nagai*, Yoshinori Iketaki, Andrew Domondon, Yu Sato, Tsutomu Watanabe

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


It is well known that transitions such as Is-to-π* transitions possess an angular dependence. In particular, the transition is optically forbidden at the normal-incidence angle because the electric vector of X-ray is perpendicular to the π* molecular orbital. This means that compounds possessing π* molecular orbitals, such as graphite, become transparent at the normal-incidence angle. Using this optical property, we propose a design for a metal/graphite normal-incidence X-ray multilayer device. It is expected that the designed mirror will have a reflectance of 35% in the XANES region of carbon. Finally, we consider an application of the mirror to biological X-ray microscopy.

Original languageEnglish
Pages (from-to)1304-1307+3
JournalIEEJ Transactions on Electronics, Information and Systems
Issue number9
Publication statusPublished - 2007
Externally publishedYes


  • Atomic-scattering factor
  • Carbon K-edge
  • Graphite
  • X-ray multilayer
  • π* molecular orbital

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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