Related Experiment Video
Updated: May 16, 2026

Energy Dispersive X-ray Tomography for 3D Elemental Mapping of Individual Nanoparticles
Published on: July 5, 2016
Nondestructive quantitative analysis of a heavy element in solution or suspension by single-shot computed tomography
Yoshito Nakashima1, Tsukasa Nakano
1National Institute of Advanced Industrial Science and Technology, Geological Survey of Japan, Tsukuba, Ibaraki 305–8567, Japan. nakashima.yoshito@aist.go.jp
Abstract:
X-ray computed tomography (CT) images obtained with a polychromatic X-ray source were simulated by computer for homogeneous solutions and suspensions containing a heavy element. When the K-edge of the element was near the peak energy of the polychromatic X-ray spectrum, the degree of beam hardening in the simulated CT image strongly depended on the atomic number and molar concentration of the heavy element. We analyzed the beam hardening of a single measured CT image of a CeCl(3) aqueous solution sample, and successfully estimated the atomic number and the molar concentration of Ce simultaneously within a certain error. This single-shot, or single-energy (as opposed to dual-energy), CT method permits quick, nondestructive screening of a hazardous heavy element in a solution or suspension confined in a container.
Related Concept Videos
Electron Microscope Tomography and Single-particle Reconstruction
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
Computed Tomography
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
Imaging Studies II: Positron Emission Tomography and Scintigraphy
Fundamental Principles of PET
Atomic Emission Spectroscopy: Overview
Scanning Electron Microscopy
Fundamental Principles
Accelerated...
Atomic Emission Spectroscopy: Lab

