3D ray-tracing simulation of X-ray laser amplification

2001 ◽  
Vol 11 (PR2) ◽  
pp. Pr2-305-Pr2-308
Author(s):  
M. Temporal ◽  
S. Jacquemot ◽  
L. Bonnet ◽  
A. Decoster
Keyword(s):  
Ray Tracing ◽  
X Ray ◽  
Laser Amplification ◽  
3D Ray Tracing ◽  
Ray Tracing Simulation

Influence of surface relaxation on the contrast of threading edge dislocations in synchrotron X-ray topographs under the condition of g · b = 0 and g · b × l = 0

2021 ◽  
Vol 54 (2) ◽  
Author(s):  
Hongyu Peng ◽  
Tuerxun Ailihumaer ◽  
Fumihiro Fujie ◽  
Zeyu Chen ◽  
Balaji Raghothamachar ◽  
...  
Keyword(s):  
Ray Tracing ◽  
Depth Profiling ◽  
Simulation Method ◽  
Surface Relaxation ◽  
X Ray ◽  
Relaxation Effects ◽  
Orientation Contrast ◽  
Relaxation Depth ◽  
Edge Dislocations ◽  
Ray Tracing Simulation

Residual contrast of threading edge dislocations is observed in synchrotron back-reflection X-ray topographs of 4H-SiC epitaxial wafers recorded using basal plane reflections where both g · b = 0 and g · b × l = 0. The ray-tracing simulation method based on the orientation contrast formation mechanism is applied to simulate images of such dislocations by applying surface relaxation effects. The simulated contrast features match the observed features on X-ray topographs, clearly demonstrating that the contrast is dominated by surface relaxation. Depth profiling indicates that the surface relaxation primarily takes place within a depth of 5 µm below the surface.

Studies of c-Axis Threading Screw Dislocations in Hexagonal SiC

2008 ◽  
Vol 1069 ◽  
Author(s):  
Yi Chen ◽  
Xianrong Huang ◽  
Ning Zhang ◽  
Govindhan Dhanaraj ◽  
Edward Sanchez ◽  
...  
Keyword(s):  
Ray Tracing ◽  
Grazing Incidence ◽  
Screw Dislocations ◽  
Burgers Vector ◽  
X Ray ◽  
Back Reflection ◽  
Partial Dislocations ◽  
Ray Tracing Simulation ◽  
Vector Magnitude

ABSTRACTIn our study, closed-core threading screw dislocations and micropipes were studied using synchrotron x-ray topography of various geometries. The Burgers vector magnitude of TSDs can be quantitatively determined from their dimensions in back-reflection x-ray topography, based on ray-tracing simulation and this has been verified by the images of elementary TSDs. Dislocation senses of closed-core threading screw dislocations and micropipes can be revealed by grazing-incidence x-ray topography. The threading screw dislocations can be converted into Frank partial dislocations on the basal planes and this has been confirmed by transmission synchrotron x-ray topography.

scholarly journals 0501 3D-Ray-Tracing Simulation of Optical Fiber Probing in Bubble/droplet Measurement

2012 ◽  
Vol 2012 (0) ◽  
pp. 207-208
Author(s):  
Hajime FURUICHI ◽  
Yuki MIZUSHIMA ◽  
Akihiro SAKAMOTO ◽  
Takayuki SAITO
Keyword(s):  
Optical Fiber ◽  
Ray Tracing ◽  
3D Ray Tracing ◽  
Ray Tracing Simulation

Raytracing simulation and Augrids experimental test on spatial resolution of KBA Xray microscope

2011 ◽  
Vol 23 (9) ◽  
pp. 2415-2417
Author(s):  
董建军 Dong Jianjun ◽  
杨正华 Yang Zhenghua ◽  
曹柱荣 Cao Zhurong ◽  
韦敏习 Wei Minxi ◽  
詹夏宇 Zhan Xiayu ◽  
...  
Keyword(s):  
Ray Tracing ◽  
Spatial Resolution ◽  
Experimental Test ◽  
X Ray ◽  
Ray Tracing Simulation

Characterization of Threading Dislocations in PVT-Grown AlN Substrates via x-Ray Topography and Ray Tracing Simulation

2014 ◽  
Vol 43 (4) ◽  
pp. 838-842 ◽  
Author(s):  
Tianyi Zhou ◽  
Balaji Raghothamachar ◽  
Fangzhen Wu ◽  
Rafael Dalmau ◽  
Baxter Moody ◽  
...  
Keyword(s):  
Ray Tracing ◽  
Threading Dislocations ◽  
X Ray ◽  
Ray Tracing Simulation

A three-dimensional ray-tracing code dedicated to x-ray laser amplification simulation

2001 ◽  
Vol 8 (4) ◽  
pp. 1363 ◽  
Author(s):  
M. Temporal ◽  
S. Jacquemot ◽  
L. Bonnet ◽  
A. Decoster
Keyword(s):  
Ray Tracing ◽  
Three Dimensional ◽  
X Ray ◽  
Laser Amplification

Investigation of Dislocations in 6H-SiC Axial Samples Using Synchrotron X-Ray Topography and Ray Tracing Simulation

2021 ◽  
Vol MA2021-02 (34) ◽  
pp. 1006-1006
Author(s):  
Hongyu Peng ◽  
Yafei Liu ◽  
Tuerxun Ailihumaer ◽  
Balaji Raghothamachar ◽  
Michael Dudley ◽  
...  
Keyword(s):  
Ray Tracing ◽  
X Ray ◽  
Ray Tracing Simulation
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