scholarly journals Influence of Doppler broadening model accuracy in Compton camera list-mode MLEM reconstruction

2021 ◽  
pp. 1-21
Author(s):  
Yuemeng Feng ◽  
Jean Michel Létang ◽  
David Sarrut ◽  
Voichia Maxim
Keyword(s):  
Doppler Broadening ◽  
List Mode ◽  
Model Accuracy ◽  
Compton Camera

Probabilistic models and numerical calculation of system matrix and sensitivity in list-mode MLEM 3D reconstruction of Compton camera images

2015 ◽  
Vol 61 (1) ◽  
pp. 243-264 ◽  
Author(s):  
Voichita Maxim ◽  
Xavier Lojacono ◽  
Estelle Hilaire ◽  
Jochen Krimmer ◽  
Etienne Testa ◽  
...  
Keyword(s):  
Numerical Calculation ◽  
3D Reconstruction ◽  
Probabilistic Models ◽  
List Mode ◽  
System Matrix ◽  
Compton Camera

Axial Observation of X-Ray Spectra from a Beam-Foil Source

1988 ◽  
Vol 102 ◽  
pp. 339-342
Author(s):  
J.M. Laming ◽  
J.D. Silver ◽  
R. Barnsley ◽  
J. Dunn ◽  
K.D. Evans ◽  
...  
Keyword(s):  
Spectral Resolution ◽  
Heavy Ion ◽  
Ion Beams ◽  
Beam Axis ◽  
Doppler Broadening ◽  
X Ray ◽  
Beam Foil

AbstractNew observations of x-ray spectra from foil-excited heavy ion beams are reported. By observing the target in a direction along the beam axis, an improvement in spectral resolution, δλ/λ, by about a factor of two is achieved, due to the reduced Doppler broadening in this geometry.

Control of processing at multi-tool two-support setup

2020 ◽  
pp. 67-73
Author(s):  
N.D. YUsubov ◽  
G.M. Abbasova
Keyword(s):  
Degrees Of Freedom ◽  
Factor Model ◽  
Angular Displacement ◽  
Factor Models ◽  
Technological System ◽  
Displacement Control ◽  
Model Accuracy ◽  
Six Degrees Of Freedom ◽  
Angular Displacements ◽  
And Control

The accuracy of two-tool machining on automatic lathes is analyzed. Full-factor models of distortions and scattering fields of the performed dimensions, taking into account the flexibility of the technological system on six degrees of freedom, i. e. angular displacements in the technological system, were used in the research. Possibilities of design and control of two-tool adjustment are considered. Keywords turning processing, cutting mode, two-tool setup, full-factor model, accuracy, angular displacement, control, calculation [email protected]

Analysis of Effective Slant Range Model Accuracy Based on Low-Earth-Orbital (LEO) Spaceborne SAR

2014 ◽  
Vol 35 (1) ◽  
pp. 56-62
Author(s):  
Bing-ji Zhao ◽  
Xiang-yang Qi ◽  
Hong-jun Song ◽  
Hui Zhou
Keyword(s):  
Model Accuracy ◽  
Slant Range
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