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transmission tomography

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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: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003760
EISBN: 978-1-62708-177-1
... Serial-Sectioning Case Study Examples Focused Ion Beam Tomography Sectioning Case Study Atom Probe Tomography Principles of Atom Probe Tomography Methods of Representation X-Ray Microtomography General Concepts Transmission Tomography Phase Contrast Imaging Edge Contrast...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005218
EISBN: 978-1-62708-187-0
... experiments provide two-dimensional transmission projected images of the sample. In a tomography experiment, a sequence of two-dimensional radiograms are collected while the sample is pivoted by a few hundred increments over a 180° rotation about an axis perpendicular to the propagation direction of the x-ray...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006478
EISBN: 978-1-62708-190-0
... Limitations Immersion systems Excellent signal quality, no moving water, very clean and stable. Good spatial resolution at a prescribed focal zone of the transducer. Large stand-off distances are possible. Can be used in through-transmission (TT) and/or pulse-echo (PE) mode. Best resolution available...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003436
EISBN: 978-1-62708-195-5
...  Penetration X-ray transmission is limited by size, density, and atomic number of the part and by the available x-ray energy.  Size/shape Access to 360° around the part Fig. 37 Computed tomography image of a graphite/epoxy woven “J”-stiffener, showing ply condition and consolidation Fig...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.9781627081900
EISBN: 978-1-62708-190-0
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
... be applied either in through-transmission two sides or reflection mode single side. Good sensitivity in acoustically clear material All metals and alloys, sintered carbides, glass and ceramics, rubber, structural plastics, concrete Electromagnetic testing Measures impedance of coil close to conductive...
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
... component. Nondestructive inspection may be required to document cracks present in a component. Computed tomography radiography may be required to fully characterize a failed component. Component failure simulation testing, if performed, should be photographically documented in a manner similar...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006564
EISBN: 978-1-62708-290-7
... Images , J. Intelligent Manuf. , 2018 10.1007/s10845-018-1412-0 15. Gögelein A. , Ladewig A. , Zenzinger G. , and Bamberg J. , Ed., Process Monitoring of Additive Manufacturing by Using Optical Tomography , 14th Quantitative Infrared Thermography Conference , 2018...
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
...Abstract Abstract This article discusses the failure analysis of several steel transmission pipeline failures, describes the causes and characteristics of specific pipeline failure modes, and introduces pipeline failure prevention and integrity management practices and methodologies...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006268
EISBN: 978-1-62708-169-6
... phases in Al-Cu-Mg alloys situated in the α + S composition range of the phase diagram, as presented by various authors. GPB, Guinier-Preston-Bagaryatski; APT, atom probe tomography; TEM, transmission electron microscopy; NMR, nuclear magnetic resonance; SAXS, small-angle x-ray scattering. For further...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006445
EISBN: 978-1-62708-190-0
... Absorption of x-rays/camera Image analysis/image comparison Volume Mostly not possible If inclusion changes total absorption >0.5% Flaw must cause measurable difference in absorption (>0.5%); no cracks, only volumetric flaws such as inclusions; slow Computer tomography (x-ray) Absorption of x...
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 involves viewing of a real-time image on a fluorescent screen or image-intensifier, the radiographic process is termed “real-time inspection.” When electronic, nonimaging instruments are used to measure the intensity of radiation, the process is termed “radiation gaging.” Tomography, a radiation...
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 involves viewing of a real-time image on a fluorescent screen or image-intensifier, the radiographic process is termed “real-time inspection.” When electronic, nonimaging instruments are used to measure the intensity of radiation, the process is termed “radiation gaging.” Tomography, a radiation...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003057
EISBN: 978-1-62708-200-6
... include reflected light microscopy using polarized light, scanning electron microscopy, transmission electron microscopy, energy dispersive analysis of X-rays, and wavelength dispersive analysis of X-rays. Macroscopic property characterization involves measurement of porosity, density, and surface area...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006574
EISBN: 978-1-62708-290-7
... , 7 ) Investigate the grain structure via channeling contrast Transmission electron microscopy ( Ref 1 , 7 , 42 ) Probe local changes in dislocation density and the formation of subgrain boundaries Energy-dispersive spectroscopy ( Ref 9 , 42 , 48 , 49 ) Understand the role of elemental...
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
... Ref 70 Fig. 43 H-bar geometry for transmission electron microscope (TEM) sample preparation. FIB, focused ion beam. Inset image courtesy of Fibics Incorporated, Ottawa, Canada Fig. 45 Atom probe tomography sample-preparation workflow using the focused ion beam. See text...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005504
EISBN: 978-1-62708-197-9
...-D atom probe tomography, field ion microscopy, and transmission electron microscopy tomography) and methods that examine very large volumes with much coarser resolution (such as mechanical serial sectioning coupled to optical microscopy, and x-ray tomography). The FIB instruments operate...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003431
EISBN: 978-1-62708-195-5
..., nondestructive inspection/test methods such as pulse-echo and through-transmission ultrasonics are the technologies of choice in determining composite quality. Continuous improvement research has developed additional inspection methods, such as leaky Lamb wave, polar backscattering, nonlinear acoustics...
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
... … S S S S … … Scanning electron microscopy ● … … ● ● … … ● … ● ● … S … ● Secondary ion mass spectroscopy ● … ● ● … … … … ● ● ● S … … … Spark source mass spectrometry ● … ● ● ● ● ● … … ● ● ● … … … Transmission electron microscopy...