scholarly journals Report on "The 53th Workshop on X-ray Studies on Mechanical Behavior of Materials - Application of Non Destructive Inspection, the Measurement Technique in Materials Used for Transportation Equipment and the Structure -"

2017 ◽  
Vol 66 (3) ◽  
pp. 250
Author(s):  
Koji YATSUSHIRO ◽  
Takayuki KURIMURA
Keyword(s):  
Mechanical Behavior ◽  
Measurement Technique ◽  
X Ray ◽  
Transportation Equipment ◽  
Materials Used ◽  
Non Destructive

Pushing the limits: an instrument for hard X-ray imaging below 20 nm

2015 ◽  
Vol 22 (2) ◽  
pp. 336-341 ◽  
Author(s):  
E. Nazaretski ◽  
K. Lauer ◽  
H. Yan ◽  
N. Bouet ◽  
J. Zhou ◽  
...  
Keyword(s):  
3D Imaging ◽  
X Ray ◽  
Ongoing Effort ◽  
X Ray Imaging ◽  
Synchrotron Facility ◽  
Imaging Resolution ◽  
Materials Used ◽  
The Stability ◽  
20 Nm ◽  
Non Destructive

Hard X-ray microscopy is a prominent tool suitable for nanoscale-resolution non-destructive imaging of various materials used in different areas of science and technology. With an ongoing effort to push the 2D/3D imaging resolution down to 10 nm in the hard X-ray regime, both the fabrication of nano-focusing optics and the stability of the microscope using those optics become extremely challenging. In this work a microscopy system designed and constructed to accommodate multilayer Laue lenses as nanofocusing optics is presented. The developed apparatus has been thoroughly characterized in terms of resolution and stability followed by imaging experiments at a synchrotron facility. Drift rates of ∼2 nm h−1accompanied by 13 nm × 33 nm imaging resolution at 11.8 keV are reported.

Cladding Thickness of Fuel Elements by X-Rays

1958 ◽  
Vol 2 ◽  
pp. 275-281
Author(s):  
Beverley James Lowe ◽  
Payson D. Sierer ◽  
Robert B. Ogilvie
Keyword(s):  
304 Stainless Steel ◽  
X Rays ◽  
X Ray ◽  
Uranium Fuel ◽  
Wide Range ◽  
Materials Used ◽  
Fuel Elements ◽  
Destructive Measurement ◽  
Non Destructive ◽  
Cladding Material

AbstractThe paper is based on a feasibility study to determine the suitability of various techniques for the non-destructive measurement of cladding thickness on uranium fuel elements. The techniques studied were: 1—the attentuation of the characteristic X-ray fluorescence from the uranium base metal by the cladding material, and 2—Compton scattering of X-rays from the cladding surface. The cladding materials used in the investigation were aluminum, 304 stainless steel and zirconium, providing a wide range of both atomic number and density.

scholarly journals An imaging and spectroscopic methodology for in situ analysis of ceiling and wall decorations in Colonial missions in Northern Mexico from XVII to XVIII centuries

2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Edgar Casanova-González ◽  
Miguel Ángel Maynez-Rojas ◽  
Alejandro Mitrani ◽  
Isaac Rangel-Chávez ◽  
María Angélica García-Bucio ◽  
...  
Keyword(s):  
Fiber Optics ◽  
Infrared Imaging ◽  
Spanish Colonial ◽  
X Ray ◽  
Northern Mexico ◽  
Non Invasive ◽  
Materials Used ◽  
Non Destructive

Abstract Almost three hundred Spanish colonial missions—or their remains—are scattered over the vast state of Chihuahua in northern Mexico. A few of them still display painted decorations on the wood ceilings and walls. The decorated areas vary greatly, from the whole ceiling of the main aisle to just a few square meters in a lateral chapel, and so does the conservation state of the paintings. In this context, the information regarding the paintings’ composition plays a key role in the restoration and conservation processes. For the gathering of such information, we propose a combined methodology for a fast, non-destructive and non-invasive characterization of such paintings with a minimum of techniques. This methodology includes false color infrared imaging as a first approach to determine the composition of large areas of the paintings and the homogeneity of the materials used in the painted areas, followed by small area analysis by X-ray fluorescence and fiber-optics reflectance spectroscopy. This methodology was applied to characterize the elemental and molecular composition of the decorations for four missions in Chihuahua in a fast and specific manner, revealing the use of a mix of mineral and organic materials including indigo and cochineal, and detecting differences between the missions. The methodology presented here can be easily applied for the study of a wider number of missions in Chihuahua and other regions to provide outstanding information of materials, pictorial techniques and deterioration conditions.

scholarly journals Application of X-Ray Fluorescence Analysis in Investigations of Historical Monuments

10.14311/772 ◽  
2005 ◽  
Vol 45 (5) ◽  
Author(s):  
T. Čechák ◽  
L. Musílek ◽  
T. Trojek ◽  
I. Kopecká
Keyword(s):  
Elemental Composition ◽  
Fluorescence Analysis ◽  
Ionising Radiation ◽  
X Ray ◽  
Nuclear Techniques ◽  
Historical Monuments ◽  
Materials Used ◽  
Non Destructive

Nuclear techniques and other techniques using ionising radiation represent a valuable tool in non-destructive diagnostics applied to archaeological finds and objects of arts, namely for determining the composition of materials used in the production of artefacts. X-ray fluorescence analysis, both in its energy form and in its wave dispersive form, is one of the most widespread methods using ionising radiation to study the elemental composition of materials. It is frequently used for studies of various cultural and historic relicts and objects of art. This work summarizes the authors’ experience with X-ray fluorescence analysis in investigating historical frescos namely by means of portable provide spectroscopic devices. The results of these measurements information on the composition of the pigments, enable the comparison of processes used in the fabrication of pigments by individual artists, and in many cases offer information on how to repair the damaged parts. 

scholarly journals Investigation of Ancient Wall Painting Fragments Discovered in the Roman Baths from Alburnus Maior by Complementary Non-Destructive Techniques

2021 ◽  
Vol 11 (21) ◽  
pp. 10049
Author(s):  
Ioana Maria Cortea ◽  
Lucian Ratoiu ◽  
Luminița Ghervase ◽  
Ovidiu Țentea ◽  
Mihaela Dinu
Keyword(s):  
Wall Painting ◽  
Published Data ◽  
X Ray ◽  
Color Palette ◽  
Layer Sequence ◽  
Roman Baths ◽  
Complementary Techniques ◽  
Materials Used ◽  
Roman Province ◽  
Non Destructive

In this study, several wall painting fragments discovered in the Roman baths from the archeological site Alburnus Maior (Roşia Montană, Romania) were analyzed with the aim to investigate the material composition of both plasters and pictorial layers. Dated from the beginning of the second century AD, these rare findings stand among the oldest examples of preserved decorative polychrome paintings on plaster excavated thus far in the former territory of the Roman province of Dacia. A non-destructive multi-analytical approach based on complementary techniques was considered: Fourier transform infrared (FTIR) spectroscopy, X-ray fluorescence (XRF), X-ray diffraction (XRD), UV fluorescence, and hyperspectral imaging (HSI). The obtained results highlight a common Roman color palette mainly based on naturally occurring earth pigments. Red ochre, yellow ochre, manganese-rich ochres/wads, carbon black, and calcite were identified. A traditional two-layer sequence of plasters was found—arriccio (based on lime and siliceous sands), and intonaco (pure lime). The presence of an organic protein binder, identified via FTIR analysis, and sustained by combined imaging documentation, indicates that the pigments were applied a secco. The obtained results are discussed in relation to previous published data, and they can be considered as valuable archeological indicators that contribute to the understanding of the painting techniques and the materials used in the Roman provinces.

Analysis of mordants, driers, and lapis lazuli using x-ray fluorescence: comparative research using reconstructed paint samples and case studies

Secreta Artis ◽  
2021 ◽  
pp. 84-95
Author(s):  
Brian Baade ◽  
Kristin DeGhetaldi ◽  
Alyssa Rina
Keyword(s):  
Analytical Data ◽  
X Ray ◽  
Paint Systems ◽  
History Of ◽  
Materials Used ◽  
Paint Films ◽  
Analytical Tools ◽  
Non Destructive ◽  
Lapis Lazuli

Changes in the formulation of pigments and paint binders and the presence of additives used in the history of painting can complicate the interpretation of analytical data and may influence the characterization of the materials used in artworks. The limitations of the common analytical tools used to identify potential paint components including metallic driers, pigments, and the inorganic substrates of lake colors may also make analysis more difficult. X-Ray Fluorescence (XRF) spectroscopy is a common non-destructive technique used to collect inorganic elemental information from artworks. Advancements in XRF technology now permit the gathering of data from multi-layered paint systems and scanning technology can help characterize pigments across the entire surface of an artwork. These tools require an even greater understanding of the potential materials in an artwork to avoid misinterpretation of the data. The authors tested XRF’s ability to characterize lead, manganese, and cobalt driers. The presence of metallic driers could have an impact on the interpretation of the inorganic components in paint films. Lake pigment substrates often contain aluminum, tin, and calcium salts. The detection of these ions was also studied. Finally, the XRF detection of aluminum in lapis lazuli samples was assessed. These three groups of materials were also mixed with driers and/or other pigments to determine whether the presence of additional metal ions inhibited the detection of the characteristic elements. The authors used a Bruker ArtTax Micro XRF and a handheld Bruker Tracer III-SD XRF unit with and without a vacuum or helium purge for these experiments.

Highlights in the history of X-ray topography1

1995 ◽  
Vol 210 (6) ◽  
Author(s):  
A. R. Lang
Keyword(s):  
Magnetic Domain ◽  
Diffraction Theory ◽  
Dislocation Loops ◽  
X Ray Diffraction ◽  
X Ray ◽  
Domain Structures ◽  
Structure Factors ◽  
History Of ◽  
Dislocation Sources ◽  
Non Destructive

AbstractX-ray topography provides a non-destructive method of mapping point-by-point variations in orientation and reflecting power within crystals. The discovery, made by several workers independently, that in nearly perfect crystals it was possible to detect individual dislocations by X-ray diffraction contrast started an epoch of rapid exploitation of X-ray topography as a new, general method for assessing crystal perfection. Another discovery, that of X-ray Pendellösung, led to important theoretical developments in X-ray diffraction theory and to a new and precise method for measuring structure factors on an absolute scale. Other highlights picked out for mention are studies of Frank-Read dislocation sources, the discovery of long dislocation helices and lines of coaxial dislocation loops in aluminium, of internal magnetic domain structures in Fe-3 wt.% Si, and of stacking faults in silicon and natural diamonds.

Stoichiometric Determination of Graphite Intercalation Compounds Using Rutherford Backscatiering Spectrometry

1983 ◽  
Vol 27 ◽  
Author(s):  
L. Salamanca-Riba ◽  
B.S. Elman ◽  
M.S. Dresselhaus ◽  
T. Venkatesan
Keyword(s):  
Experimental Error ◽  
Rutherford Backscattering Spectrometry ◽  
Rutherford Backscattering ◽  
Intercalation Compounds ◽  
Graphite Intercalation Compounds ◽  
X Ray ◽  
Donor And Acceptor ◽  
Graphite Intercalation ◽  
Non Destructive

ABSTRACTRutherford backscattering spectrometry (RBS) is used to characterize the stoichiometry of graphite intercalation compounds (GIC). Specific application is made to several stages of different donor and acceptor compounds and to commensurate and incommensurate intercalants. A deviation from the theoretical stoichiometry is measured for most of the compounds using this non-destructive method. Within experimental error, the RBS results agree with those obtained from analysis of the (00ℓ) x-ray diffractograms and weight uptake measurements on the same samples.

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