Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

X-ray optics of gold nanoparticles

Not Accessible

Your library or personal account may give you access

Abstract

Gold nanoparticles have been investigated as contrast agents for traditional x-ray medical procedures, utilizing the strong absorption characteristics of the nanoparticles to enhance the contrast of the detected x-ray image. Here we use the Kramers–Kronig relation for complex atomic scattering factors to find the real and imaginary parts of the index of refraction for the medium composed of single-element materials or compounds in the x-ray range of the spectrum. These complex index of refraction values are then plugged into a Lorenz–Mie theory to calculate the absorption efficiency of various size gold nanoparticles for photon energies in the 1–100 keV range. Since the output from most medical diagnostic x-ray devices follows a wide and filtered spectrum of photon energies, we introduce and compute the effective intensity-absorption-efficiency values for gold nanoparticles of radii varying from 5 to 50 nm, where we use the TASMIP model to integrate over all spectral energies generated by typical tungsten anode x-ray tubes with kilovolt potentials ranging from 50 to 150 kVp.

© 2014 Optical Society of America

Full Article  |  PDF Article
More Like This
Optical constants of very thin gold films in the soft x-ray region

Mihiro Yanagihara, Jianlin Cao, Masaki Yamamoto, Akira Arai, Shigeru Nakayama, Tamaki Mizuide, and Takeshi Namioka
Appl. Opt. 30(19) 2807-2814 (1991)

Gold Sensitization of X-Ray Films*

Herman Hoerlin and F. W. H. Mueller
J. Opt. Soc. Am. 40(4) 246-251 (1950)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (11)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved