Development of an ultra high-precision x-ray telescope with an adaptive optics system

2003 ◽  
Author(s):  
Shunji Kitamoto ◽  
Haruko Takano ◽  
Harue Saitoh ◽  
Norimasa Yamamoto ◽  
Takayoshi Kohmura ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
High Precision ◽  
X Ray ◽  
Adaptive Optics System

X-ray imaging and adaptive optics system for a 13.5nm telescope

2007 ◽  
Author(s):  
S. Kitamoto ◽  
Y. Ohkubo ◽  
M. Tsujimoto ◽  
T. Ogita ◽  
K. Saitoh ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
X Ray ◽  
X Ray Imaging ◽  
Adaptive Optics System

scholarly journals High-precision open-loop adaptive optics system based on LC-SLM

2009 ◽  
Vol 17 (13) ◽  
pp. 10774 ◽  
Author(s):  
Chao Li ◽  
Mingliang Xia ◽  
Quanqun Mu ◽  
Baoguang Jiang ◽  
Li Xuan ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
High Precision ◽  
Open Loop ◽  
Adaptive Optics System

Automatic measurement of SAED patterns from asbestos minerals

1988 ◽  
Vol 46 ◽  
pp. 846-847
Author(s):  
J. C. Russ ◽  
T. Taguchi ◽  
P. M. Peters ◽  
E. Chatfield ◽  
J. C. Russ ◽  
...  
Keyword(s):  
Diffraction Pattern ◽  
High Precision ◽  
Diffraction Data ◽  
Automatic Measurement ◽  
Automatic Method ◽  
Important Method ◽  
X Ray ◽  
Integrated Intensity ◽  
Asbestiform Minerals ◽  
True Center

Conventional SAD patterns as obtained in the TEM present difficulties for identification of materials such as asbestiform minerals, although diffraction data is considered to be an important method for making this purpose. The preferred orientation of the fibers and the spotty patterns that are obtained do not readily lend themselves to measurement of the integrated intensity values for each d-spacing, and even the d-spacings may be hard to determine precisely because the true center location for the broken rings requires estimation. We have implemented an automatic method for diffraction pattern measurement to overcome these problems. It automatically locates the center of patterns with high precision, measures the radius of each ring of spots in the pattern, and integrates the density of spots in that ring. The resulting spectrum of intensity vs. radius is then used just as a conventional X-ray diffractometer scan would be, to locate peaks and produce a list of d,I values suitable for search/match comparison to known or expected phases.

scholarly journals Temporal statistics of residual wavefront variance of an adaptive optics system

2019 ◽  
Vol 21 (12) ◽  
pp. 125606
Author(s):  
Jian Huang ◽  
Hong Zhou ◽  
Jinsheng Yang ◽  
Chao Liu ◽  
Hao Xian
Keyword(s):  
Adaptive Optics ◽  
Temporal Statistics ◽  
Adaptive Optics System

scholarly journals Improved Wavefront Reconstruction and Correction Strategy for Adaptive Optics System with a Plenoptic Sensor

2021 ◽  
pp. 1-1
Author(s):  
Jintian Hu ◽  
Chen Tao ◽  
Xudong Lin ◽  
Liang Wang ◽  
Qichang An ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Wavefront Reconstruction ◽  
Adaptive Optics System

Optimal control techniques for the adaptive optics system of the LBT

2008 ◽  
Author(s):  
G. Agapito ◽  
F. Quiros-Pacheco ◽  
P. Tesi ◽  
S. Esposito ◽  
M. Xompero
Keyword(s):  
Optimal Control ◽  
Adaptive Optics ◽  
Control Techniques ◽  
Adaptive Optics System
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