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X-ray fluorescence tomography

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Published: 01 December 2004
Fig. 41 Key elements of an x-ray fluorescence tomography arrangement. I 0 monitor measures the incident-beam intensity. The x-ray fluorescence is monitored while the sample is rotated and translated by a precision stage. Both the step size of the stage motions and the focal spot size More
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003760
EISBN: 978-1-62708-177-1
... tomography phase contrast imaging serial sectioning three-dimensional microscopy transmission tomography X-ray fluorescence tomography X-ray microtomography THREE-DIMENSIONAL MICROSCOPY can be used to reveal the shape, distribution, and connectivity of three-dimensional (3D) features that lie...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003238
EISBN: 978-1-62708-199-3
... inspection method adapted from the medical computerized axial tomography CAT scanner, provides a cross-sectional view of an inspection object. All the previous terms are used mainly in connection with inspection that involves penetrating electromagnetic radiation in the form of x-rays or gamma rays. “Neutron...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006448
EISBN: 978-1-62708-190-0
... screens. radiography radiation dosage monitoring personnel protection X-ray tube recording media lead screens lead oxide screens fluorescent intensifying screens radiation safety image conversion scattered radiation control radiographic sensitivity RADIOGRAPHY is the process...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006456
EISBN: 978-1-62708-190-0
... of performance characteristics for film radiography, real-time radiography, and X-ray computed tomography is presented in a table. A functional block diagram of a typical computed tomography system is provided. The article discusses CT scanning geometry that is used to acquire the necessary transmission data...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
... stress applied to magnetic material Online monitoring of magnetic material Not suitable for nonmagnetic material Online monitoring; can sense stress without cracking Magnetic metals, steel, nickel, iron, chrome Radiography, computed tomography, digital x-ray, neutron radiographic testing, x-ray...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0006515
EISBN: 978-1-62708-200-6
... tetraglycidyl methylenedianiline XPS x-ray photoelectron spectroscopy SAE Society of Automotive Engineers TIR total indicator reading; total indicator SAM scanning Auger microscopy XRD x-ray diffraction SAN styrene-acrylonitrile runout XRFS x-ray fluorescence spectroscopy SANS small-angle neutron scattering TLC...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006671
EISBN: 978-1-62708-213-6
... by using x-ray fluorescent analysis or x-ray spectroscopy (XRS), coupled with a scanning electron microscope (SEM) to perform electron probe microanalysis (EPMA). However, this analysis can also be done at submicrometer levels when coupled with a transmission electron microscope (TEM) or analytical...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006336
EISBN: 978-1-62708-179-5
... software. While conventional (two-dimensional visible light) imaging is most commonly used, alternatives include imaging various infrared bands, line scan imaging, 3-D imaging of surfaces, and x-ray imaging. The 3-D scanners use lasers or structured light to capture 3-D information of a part. The scanner...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006763
EISBN: 978-1-62708-295-2
... is digital photography. The digital camera is incorporated in the scanning electron microscope. X-ray spectroscopy image photography may also be used for the recording of x-ray images and maps. Fig. 30 Setup for scanning electron microscopic examination of exemplar fractured crankshaft Fig. 31...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003057
EISBN: 978-1-62708-200-6
.... Chemical analysis is carried out by X-ray fluorescence spectrometry, atomic absorption spectrophotometry, and plasma-emission spectrophotometry. Phase analysis is done by X-ray diffraction, spectroscopic methods, thermal analysis, and quantitative analysis. Techniques used for microstructural analysis...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006465
EISBN: 978-1-62708-190-0
... particles). Digital x-ray and computed tomography studies on feedstock powders have observed cases where as much as 60% of the internal volume of individual powder particles appears to be void (likely entrapped gas, shown in Fig. 4a ) and can contribute to final part gas porosity ( Ref 21 ). Various...
Series: ASM Handbook
Volume: 23A
Publisher: ASM International
Published: 12 September 2022
DOI: 10.31399/asm.hb.v23A.a0006893
EISBN: 978-1-62708-392-8
... by incorporating a secondary biopolymer with a payload of fluorescently labeled microspheres. Insets represent the x , y plane (center location of sheet). (e) Confocal fluorescence image ( x , z plane) of cardiomyocytes incorporated within a planar biomaterial. (f) Confocal fluorescence image of a patterned...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.9781627082136
EISBN: 978-1-62708-213-6
Series: ASM Handbook
Volume: 23A
Publisher: ASM International
Published: 12 September 2022
DOI: 10.31399/asm.hb.v23A.a0006861
EISBN: 978-1-62708-392-8
... porosities. The total porosity governs the mechanical properties of the as-printed and postprocessed scaffolds. Microcomputed Tomography to Probe 3D Microstructure Microcomputed tomography (micro-CT) is an x-ray-based 3D imaging tool that creates cross sections of a 3D object slice by slice...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006782
EISBN: 978-1-62708-295-2
... for sectioning, depending on sample type and size. Nondestructive Testing Nondestructive testing, if required, can be performed on the entire sample or on segments of the sample as needed. Nondestructive test methods include radiography (x-ray), fluorescent penetrant inspection (FPI), magnetic-particle...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006822
EISBN: 978-1-62708-329-4
... for further examination. This cutout was scanned with computed tomography (CT) to find the through-wall leak path. Computed tomography uses multiple digital x-ray images to create a three-dimensional model that allows the scanned material to be examined from a variety of cross-sectional planes. Computed...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005655
EISBN: 978-1-62708-198-6
..., environmental scanning electron microscopy, proton nuclear magnetic resonance, size-exclusion chromatography, x-ray diffraction, differential scanning calorimetry, electron spray injection mass spectrometry, capillary zone electrophoresis, and weight loss ( Ref 75 ). In vitro biological test methods...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006677
EISBN: 978-1-62708-213-6
... consists of a stack of axes such as X , Y , and Z for translation and T and R for tilt and rotation. The stacking order will vary from one model of instrument to another, as will the range of motions available. An example of a particular stage concept is show in Fig. 2 . Often the stage...
Series: ASM Handbook
Volume: 23A
Publisher: ASM International
Published: 12 September 2022
DOI: 10.31399/asm.hb.v23A.a0006908
EISBN: 978-1-62708-392-8
..., additively manufactured Chemical compositions of Ti-6Al-4V powders from six different vendors are shown in Table 5 ( Ref 17 ). Test methods commonly used, following the ASTM International standards, are x-ray fluorescence spectrometry (ASTM E539-19), inert gas fusion thermal conductivity/infrared...