scholarly journals Automated computer analysis of x‐ray radiographs greatly facilitates measurement of coating thickness variations in laser fusion targets

1982 ◽  
Vol 20 (4) ◽  
pp. 1071-1074 ◽  
Author(s):  
D. M. Stupin ◽  
K. R. Moore ◽  
G. D. Thomas ◽  
R. L. Whitman
Keyword(s):  
Computer Analysis ◽  
Coating Thickness ◽  
Laser Fusion ◽  
X Ray ◽  
Thickness Variations

X-RAY STUDIES RELATED TO COATING THICKNESS MEASUREMENTS

1984 ◽  
Vol 45 (C2) ◽  
pp. C2-33-C2-36 ◽  
Author(s):  
D. A. Sewell ◽  
I. D. Hall ◽  
G. Love ◽  
J. P. Partridge ◽  
V. D. Scott
Keyword(s):  
Coating Thickness ◽  
X Ray ◽  
Thickness Measurements

X-ray emission from laser fusion targets

1981 ◽  
Author(s):  
V. W. Slivinsky
Keyword(s):  
Laser Fusion ◽  
X Ray

Embracing Uncertainty: Modeling the Standard Uncertainty in Electron Probe Microanalysis—Part I

2020 ◽  
Vol 26 (3) ◽  
pp. 469-483
Author(s):  
Nicholas W. M. Ritchie
Keyword(s):  
Surface Roughness ◽  
Expert System ◽  
Coating Thickness ◽  
Electron Probe ◽  
Uncertainty Modeling ◽  
Measurement Model ◽  
Standard Uncertainty ◽  
X Ray ◽  
Error Bars ◽  
New Framework

AbstractThis is the first in a series of articles which present a new framework for computing the standard uncertainty in electron excited X-ray microanalysis measurements. This article will discuss the framework and apply it to a handful of simple, but useful, subcomponents of the larger problem. Subsequent articles will handle more complex aspects of the measurement model. The result will be a framework in which sophisticated and practical models of the uncertainty for real-world measurements. It will include many long overlooked contributions like surface roughness and coating thickness. The result provides more than just error bars for our measurements. It also provides a framework for measurement optimization and, ultimately, the development of an expert system to guide both the novice and expert to design more effective measurement protocols.

scholarly journals Ultrafast Gated Intensifier Design for Laser Fusion X-Ray Framing Applications

1984 ◽  
Vol 31 (1) ◽  
pp. 504-508 ◽  
Author(s):  
Robert H. Price ◽  
Jay D. Wiedwald ◽  
Ralph Kalibjian ◽  
Stanley W. Thomas ◽  
William M. Cook
Keyword(s):  
Laser Fusion ◽  
X Ray

Spatially Resolved Suprathermal X-Ray Emission from Laser-Fusion Targets

1980 ◽  
Vol 44 (9) ◽  
pp. 579-582 ◽  
Author(s):  
N. M. Ceglio ◽  
J. T. Larsen
Keyword(s):  
Laser Fusion ◽  
X Ray ◽  
Spatially Resolved

Coating thickness determination in highly absorbent core–shell systems

2012 ◽  
Vol 45 (5) ◽  
pp. 906-913 ◽  
Author(s):  
Herve Palancher ◽  
Anne Bonnin ◽  
Veijo Honkimäki ◽  
Heikki Suhonen ◽  
Peter Cloetens ◽  
...  
Keyword(s):  
Coating Thickness ◽  
Protective Layer ◽  
Test Sample ◽  
High Energy ◽  
Core Shell ◽  
Single Shot ◽  
X Ray Diffraction ◽  
X Ray ◽  
Alloy Particles ◽  
Potential Applications

This article describes a single-shot methodology to derive an average coating thickness in multi-particle core–shell systems exhibiting high X-ray absorption. Powder composed of U–Mo alloy particles surrounded by a micrometre-thick UO2protective layer has been used as a test sample. Combining high-energy X-ray diffraction and laser granulometry, the average shell thickness could be accurately characterized. These results have been validated by additional measurements on single particles by two techniques: X-ray nanotomography and high-energy X-ray diffraction. The presented single-shot approach gives rise to many potential applications on core–shell systems and in particular on as-fabricated heterogeneous nuclear fuels.

scholarly journals CLEO/QELS '92 REPORT III. Gas Lasers, X-ray Lasers, Laser Fusion, Laser Spectroscopy.

1992 ◽  
Vol 20 (7) ◽  
pp. 572-587
Author(s):  
Masayuki KAKEHATA ◽  
Hideo HIROSE ◽  
Masanobu YAMANAKA ◽  
Takahisa JITSUNO ◽  
Tadashi KANABE ◽  
...  
Keyword(s):  
Laser Spectroscopy ◽  
Laser Fusion ◽  
X Ray ◽  
Gas Lasers

scholarly journals Formability of laser welded steel/magnesium dissimilar metal with Sn powder-adhesive interlayer

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Tao Tao ◽  
Jinshui Liu ◽  
Dianwu Zhou ◽  
Youruiling Yan ◽  
He Zhou
Keyword(s):  
Magnesium Alloy ◽  
Molten Pool ◽  
Adhesive Layer ◽  
Metal Vapor ◽  
Fusion Welding ◽  
Columnar Dendrite ◽  
Laser Fusion ◽  
Welded Steel ◽  
X Ray ◽  
Finite Element Software

Abstract The exploratory experiments of laser fusion welding with Sn powder and the automotive adhesive addition were conducted for DP590 dual-phase steel and AZ31B magnesium alloy in an overlap steel-on-magnesium configuration. The characteristics of metal vapor/plasma were analyzed by collecting and analyzing plasma shape and welding spectra. The microstructure of the welded was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive X-ray spectrometer (EDS). The temperature field distribution of the joint was simulated by COMSOL finite-element software. The results showed that the transfer of heat from steel to the magnesium alloy is hindered by the adhesive layer, which is conducive to the simultaneous melting of steel and magnesium with large differences in melting and boiling points. In addition, the width of the molten pool increases, but the depth is shallow on the magnesium side. Meanwhile, the recoil pressure induced by the splashing of the molten pool reduces, and the surface quality of the weld is improved. Some intermetallic compounds (IMCs), such as FeSn, Fe1.3Sn, and Fe3Sn, are formed inside the molten pool, while columnar dendrite Mg2Sn phase is also produced. The presence of these phases helps realize the bidirectional metallurgical bonding of steel/magnesium dissimilar metals.

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