Implementation of Vertical Neutron Camera (VNC) for ITER Fusion Plasma Neutron Source Profile Reconstruction

In present work the problem of the ITER fusion
plasma neutron source parameter reconstruction using only the
Vertical Neutron Camera data was solved. The possibility of neutron
source parameter reconstruction was estimated by the numerical
simulations and the analysis of adequateness of mathematic model
was performed. The neutron source was specified in a parametric
form. The numerical analysis of solution stability with respect to data
distortion was done. The influence of the data errors on the
reconstructed parameters is shown:
• is reconstructed with errors less than 4% at all examined values
of δ (until 60%);
• is determined with errors less than 10% when δ do not overcome
5%;
• is reconstructed with relative error more than 10 %;
• integral intensity of the neutron source is determined with error
10% while δ error is less than 15%;
where -error of signal measurements, (R0,Z0), the plasma center
position,- /parameter of neutron source profile.

• V. Amosov
• Yu. Kashchuk
• A. Krasilnikov
• A. Kostin
• A. Khovanskiy
• A. Leonov
• N. Rodionov
• R. Rodionov

• ITER
• neutronsource
• neutron source profile reconstruction
• Vertical Neutron Camera.

<p>[1] A. Tikhonov, V. Arsenin, A. Timonov,&ldquo;Mathematical problems of
computer tomography&rdquo;, Moscow, Nauka, 1987.
[2] F. Natterer,&ldquo;The Mathematics of Computerized Tomography&rdquo;, Moscow,
Mir, 1990.
[3] G. Fedorov, S. Tereschenko,&ldquo;Computed emission tomography&rdquo;,
Moscow, Energoatomizdat, 1990.
[4] V. Pickalov, T. Melnikova,&ldquo;Tomography of the plasma&rdquo;, Moscow,
Nauka, 1995.
[5] A. Kak and Malcolm Slaney, &ldquo;Principles of Computerized Tomographic
Imaging&rdquo;, Society of Industrial and Applied Mathematics, 2001.
[6] F. Natterer and F. W&uuml;bbeling, &ldquo;Mathematical Methods in Image
Reconstruction&rdquo;, Monographs on Mathematical Modeling and
Computation, vol. 5, SIAM, Philadelphia, PA 2001.
[7] S. Tereschenko,&ldquo;Methods of computed tomography&rdquo;, Moscow,
Fizmatlit, 2004.
[8] A. Tikhonov, A. Leonov, A. Yagola,&ldquo;Nonlinear ill-posed problems&rdquo;,
Moscow, Nauka, p. 312, 1995.</p>