Author： Khovanskii A. Skopintsev D. Kuz’mina S.
Publisher： MAIK Nauka/Interperiodica
ISSN： 0020-4412
Source： Instruments and Experimental Techniques, Vol.49, Iss.2, 2006-03, pp. : 203-206
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Abstract
A method for solving the inverse 2D Radon problem for a single temporal cross section as applied to the two-aspect-angle ITER neutron tomographic detection system is described. This method allows reduction of the calculation time owing to the formation of the reconstructed image described by models that are as simple as possible in the case of a single plasma filament (a spatial density distribution of the plateau, hill, crater, and banana type). These models are reduced to the approximation of the solution in the form of a superposition of two elliptic Gaussian curves (or the sum of an arbitrary number of circular Gaussian curves).
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