Numerical Analysis Of The Temperature Distribution In A Liquid-Cooled Rotating X-Ray Anode

1984 ◽  
Author(s):  
Frank E. Torres ◽  
Stephen Whitaker
Keyword(s):  
Temperature Distribution ◽  
Numerical Analysis ◽  
X Ray

Numerical analysis of shift error in X-ray phase contrast imaging for large field of view

2017 ◽  
Vol 34 (1) ◽  
pp. 8
Author(s):  
Jianheng Huang ◽  
Yaohu Lei ◽  
Xin Liu ◽  
Jinchuan Guo ◽  
Ji Li ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Phase Contrast ◽  
Field Of View ◽  
Phase Contrast Imaging ◽  
Large Field ◽  
Contrast Imaging ◽  
X Ray

X-ray topo-tomography studies of linear dislocations in silicon single crystals

2018 ◽  
Vol 51 (6) ◽  
pp. 1616-1622 ◽  
Author(s):  
Victor Asadchikov ◽  
Alexey Buzmakov ◽  
Felix Chukhovskii ◽  
Irina Dyachkova ◽  
Denis Zolotov ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
High Resolution ◽  
Single Crystals ◽  
Complete Characterization ◽  
Reconstruction Technique ◽  
Algebraic Reconstruction Technique ◽  
X Ray ◽  
Laboratory Setup ◽  
Simultaneous Algebraic Reconstruction Technique

This article describes complete characterization of the polygonal dislocation half-loops (PDHLs) introduced by scratching and subsequent bending of an Si(111) crystal. The study is based on the X-ray topo-tomography technique using both a conventional laboratory setup and the high-resolution X-ray image-detecting systems at the synchrotron facilities at KIT (Germany) and ESRF (France). Numerical analysis of PDHL images is performed using the Takagi–Taupin equations and the simultaneous algebraic reconstruction technique (SART) tomographic algorithm.

Numerical Analysis of Temperature Distribution in the Long DC Arc Thermal Plasma for Waste Treatment

2013 ◽  
Vol 46 (3) ◽  
pp. 201-208 ◽  
Author(s):  
Sooseok Choi ◽  
TianMing Li ◽  
Takayuki Watanabe ◽  
Takashi Nakayama ◽  
Koji Otsuki
Keyword(s):  
Temperature Distribution ◽  
Numerical Analysis ◽  
Thermal Plasma ◽  
Waste Treatment ◽  
Dc Arc

Experimental and numerical analysis of a plasma collision by x-ray spectroscopy and imaging

1995 ◽  
Vol 54 (1-2) ◽  
pp. 105-112 ◽  
Author(s):  
C. Chenais-Popovics ◽  
O. Rancu ◽  
P. Renaudin ◽  
H. Kawagoshi ◽  
J.C. Gauthier ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
X Ray

Intense X-Ray Measurement of Transient Hydraulic Phenomena in Molten Pool During Laser Welding Process

2012 ◽  
Author(s):  
Tomonori Yamada ◽  
Takahisa Shobu ◽  
Susumu Yamashita ◽  
Takemitsu Ogawa ◽  
Kenta Sugihara ◽  
...  
Keyword(s):  
Temperature Distribution ◽  
Laser Welding ◽  
Phase Change ◽  
Molten Pool ◽  
Welding Process ◽  
In Situ Observation ◽  
Interface Shape ◽  
X Ray ◽  
Laser Welding Process

Spatial temperature distribution during the laser welding process has a huge effect on any residual stress distribution. Therefore, understanding of the transient hydraulic phenomena which affect the temperature distribution in the molten pool is very important. In this work, intense X-ray measurement at the Super Photon ring-8 GeV (SPring-8) facility well carried out to document the transient hydraulic phenomena in the molten pool during the laser welding process. Based on in-situ observation of inside material, the experimental results confirmed that the molten pool shapes, hydraulic condition such as flow velocity, etc.. In the case of laser power is 330W and spot diameter is 1mm, we observed the steady flow which consisted of downward flow and upward flow. The flow velocities were about 19.5 mm/s and 9.0 mm/s, respectively. Moreover, the rate of phase change was obtained from molten pool shape during laser welding. The rate of phase change was not constant during laser welding. Thus the interface shape might change at all time. Therefore, to evaluate the temperature distribution, it is necessary to consider not only convection but also the interface shape. These results indicate that the intense X-ray measurement during laser welding is very effective for the understanding the molten pool phenomena.

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