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

Research output: Contribution to journal › Article › peer-review

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
Externally published	Yes

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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10.1541/ieejeiss.127.1304

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title = "A graphite-based multilayer mirror for microscopy in the XANES region of biomolecules",

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.",

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

author = "Koumei Nagai and Yoshinori Iketaki and Andrew Domondon and Yu Sato and Tsutomu Watanabe",

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language = "English",

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journal = "IEEJ Transactions on Electronics, Information and Systems",

issn = "0385-4221",

publisher = "The Institute of Electrical Engineers of Japan",

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TY - JOUR

T1 - A graphite-based multilayer mirror for microscopy in the XANES region of biomolecules

AU - Nagai, Koumei

AU - Iketaki, Yoshinori

AU - Domondon, Andrew

AU - Sato, Yu

AU - Watanabe, Tsutomu

PY - 2007

Y1 - 2007

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.

KW - Atomic-scattering factor

KW - Carbon K-edge

KW - Graphite

KW - X-ray multilayer

KW - XANES

KW - π molecular orbital

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