Three-dimensional X-ray fluorescence imaging modes for biological specimens using a full-field energy dispersive CCD camera

2019 ◽  
Vol 34 (10) ◽  
pp. 2083-2093 ◽  
Author(s):  
Björn De Samber ◽  
Oliver Scharf ◽  
Günther Buzanich ◽  
Jan Garrevoet ◽  
Pieter Tack ◽  
...  
Keyword(s):  
Fluorescence Imaging ◽  
Biological Samples ◽  
Three Dimensional ◽  
Ccd Camera ◽  
Energy Dispersive ◽  
Field Energy ◽  
Full Field ◽  
X Ray ◽  
Pros And Cons

New three-dimensional full-field XRF imaging schemes are demonstrated using biological samples: the pros and cons with respect to traditional scanning XRF techniques are given.

scholarly journals The SLcam: a full-field energy dispersive X-ray camera

2012 ◽  
Vol 7 (11) ◽  
pp. C11008-C11008 ◽  
Author(s):  
A Bjeoumikhov ◽  
G Buzanich ◽  
N Langhoff ◽  
I Ordavo ◽  
M Radtke ◽  
...  
Keyword(s):  
Energy Dispersive ◽  
Field Energy ◽  
Full Field ◽  
X Ray

scholarly journals A new device to mount portable energy-dispersive X-ray fluorescence spectrometers (p-ED-XRF) for semi-continuous analyses of split (sediment) cores and solid samples

2017 ◽  
Vol 6 (1) ◽  
pp. 93-101 ◽  
Author(s):  
Philipp Hoelzmann ◽  
Torsten Klein ◽  
Frank Kutz ◽  
Brigitta Schütt
Keyword(s):  
Spatial Resolution ◽  
Atlantic Coast ◽  
Sediment Cores ◽  
Ccd Camera ◽  
Energy Dispersive ◽  
Solid Samples ◽  
Industrial Property ◽  
X Ray ◽  
New Device ◽  
Sample Chamber

Abstract. Portable energy-dispersive X-ray fluorescence spectrometers (p-ED-XRF) have become increasingly popular in sedimentary laboratories to quantify the chemical composition of a range of materials such as sediments, soils, solid samples, and artefacts. Here, we introduce a low-cost, clearly arranged unit that functions as a sample chamber (German industrial property rights no. 20 2014 106 048.0) for p-ED-XRF devices to facilitate economic, non-destructive, fast, and semi-continuous analysis of (sediment) cores or other solid samples. The spatial resolution of the measurements is limited to the specifications of the applied p-ED-XRF device – in our case a Thermo Scientific Niton XL3t p-ED-XRF spectrometer with a maximum spatial resolution of 0.3 cm and equipped with a charge-coupled device (CCD) camera to document the measurement spot. We demonstrate the strength of combining p-ED-XRF analyses with this new sample chamber to identify Holocene facies changes (e.g. marine vs. terrestrial sedimentary facies) using a sediment core from an estuarine environment in the context of a geoarchaeological investigation at the Atlantic coast of southern Spain.

scholarly journals Three-dimensional imaging of chemical phase transformations at the nanoscale with full-field transmission X-ray microscopy

2011 ◽  
Vol 18 (5) ◽  
pp. 773-781 ◽  
Author(s):  
Florian Meirer ◽  
Jordi Cabana ◽  
Yijin Liu ◽  
Apurva Mehta ◽  
Joy C. Andrews ◽  
...  
Keyword(s):  
Phase Transformations ◽  
Three Dimensional ◽  
Three Dimensional Imaging ◽  
Full Field ◽  
X Ray ◽  
Chemical Phase

Three-dimensional tomography using a soft X-ray holographic microscope and CCD camera

1998 ◽  
Vol 5 (3) ◽  
pp. 1088-1089 ◽  
Author(s):  
Norio Watanabe ◽  
Sadao Aoki
Keyword(s):  
Tungsten Wire ◽  
Three Dimensional ◽  
Numerical Aperture ◽  
Ccd Camera ◽  
Depth Resolution ◽  
Projection Data ◽  
Back Projection ◽  
X Ray ◽  
Dimensional Reconstruction ◽  
Transverse Resolution

The depth resolution of a soft X-ray hologram is much worse than its transverse resolution because a single soft X-ray hologram has a small numerical aperture. To obtain a three-dimensional image, in-line holograms of a specimen were recorded from various directions and reconstructed to obtain two-dimensional projection data. Then, a three-dimensional reconstruction was performed by back-projection of these reconstructed holograms. Three-dimensional images of a tungsten wire of diameter 10 µm and a fossil of a diatom were obtained.

Full-field X-ray fluorescence imaging with a straight polycapillary X-ray collimator

2020 ◽  
Vol 15 (12) ◽  
pp. P12033-P12033
Author(s):  
S. An ◽  
D. Krapohl ◽  
B. Norlin ◽  
G. Thungström
Keyword(s):  
Fluorescence Imaging ◽  
Full Field ◽  
X Ray

Nanoscale Three-Dimensional Microstructural Characterization of an Sn-Rich Solder Alloy Using High-Resolution Transmission X-Ray Microscopy (TXM)

2016 ◽  
Vol 22 (4) ◽  
pp. 808-813 ◽  
Author(s):  
Chandrashekara S. Kaira ◽  
Carl R. Mayer ◽  
V. De Andrade ◽  
Francesco De Carlo ◽  
Nikhilesh Chawla
Keyword(s):  
Fresnel Zone ◽  
Three Dimensional ◽  
Microstructural Characterization ◽  
Second Phase ◽  
Full Field ◽  
X Ray ◽  
Second Phase Particles ◽  
Rich Alloy ◽  
Nanoscale Features

AbstractThree-dimensional (3D) nondestructive microstructural characterization was performed using full-field transmission X-ray microscopy on an Sn-rich alloy, at a spatial resolution of 60 nm. This study highlights the use of synchrotron radiation along with Fresnel zone plate optics to perform absorption contrast tomography for analyzing nanoscale features of fine second phase particles distributed in the tin matrix, which are representative of the bulk microstructure. The 3D reconstruction was also used to quantify microstructural details of the analyzed volume.

Three-dimensional chemical analysis of tungsten probes by energy dispersive x-ray nanotomography

2007 ◽  
Vol 91 (25) ◽  
pp. 251906 ◽  
Author(s):  
Z. Saghi ◽  
X. Xu ◽  
Y. Peng ◽  
B. Inkson ◽  
G. Möbus
Keyword(s):  
Chemical Analysis ◽  
Three Dimensional ◽  
Energy Dispersive ◽  
X Ray
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