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

Koumei Nagai; Yoshinori Iketaki; Andrew Domondon; Yu Sato; Tsutomu Watanabe

doi:10.1541/ieejeiss.127.1304

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

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

Global Center for Science and Engineering

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	1304-1307+3
Journal	IEEJ Transactions on Electronics, Information and Systems
Volume	127
Issue number	9
DOIs	https://doi.org/10.1541/ieejeiss.127.1304
Publication status	Published - 2007 Jan 1

Keywords

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

ASJC Scopus subject areas

Electrical and Electronic Engineering

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Nagai, K., Iketaki, Y., Domondon, A., Sato, Y., & Watanabe, T. (2007). A graphite-based multilayer mirror for microscopy in the XANES region of biomolecules. IEEJ Transactions on Electronics, Information and Systems, 127(9), 1304-1307+3. https://doi.org/10.1541/ieejeiss.127.1304

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abstract = "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.",

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AU - Nagai, Koumei

AU - Iketaki, Yoshinori

AU - Domondon, Andrew

AU - Sato, Yu

AU - Watanabe, Tsutomu

PY - 2007/1/1

Y1 - 2007/1/1

N2 - 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.

AB - 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.

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