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Oct 13 – 18, 2014
Hotel Park Inn Pribaltiyskaya
Europe/Moscow timezone

On the Possibility of Alpha-Particle Confinement Study in ITER by NPA Measurements of Knock-on Ion Tails

Oct 15, 2014, 8:30 AM
4h
Green 8-9 (Hotel Park Inn Pribaltiyskaya)

Green 8-9

Hotel Park Inn Pribaltiyskaya

Saint Petersburg, Russian Federation
Poster Poster 3

Speaker

Mr Vladislav Nesenevich (Ioffe Physical-Technical Institute of the Russian Academy of Sciences)

Description

One of the issues of the neutral particle diagnostics on ITER is to measure the distribution functions of the fast deuterium (D) and tritium (T) ions in MeV energy range. High energy tails in D,T-ion energy distributions (so-called knock-on ions) appear as a result of the close elastic collisions between the thermal fuel ions and the fusion alpha particles. The knock-on ion density depends directly on the density and energy distribution of the alpha particles. Therefore measurements of the neutralized knock-on D,T-ion fluxes escaping the plasma volume can provide information on the alpha particle confinement in DT-plasma. This report presents results of the numerical simulation for the neutralized fast D,T-ion fluxes in case of ITER fusion plasma and considers measurements of these fluxes in respect to neutral particle diagnostics and its capabilities on ITER.
Country or International Organisation Russian Federation
Paper Number TH/P3-37

Primary author

Mr Vladislav Nesenevich (Ioffe Physical-Technical Institute of the Russian Academy of Sciences)

Co-authors

Mr Maxim Mironov (Ioffe Physical-Technical Institute of the Russian Academy of Sciences) Mr Mikhail Petrov (Ioffe Physical-Technical Institute of the Russian Academy of Sciences) Mr Pavel Goncharov (St.Petersburg State Polytechnical University) Mr Sergey Petrov (Ioffe Physical-Technical Institute of the Russian Academy of Sciences) Mr Valery Afanasyev (Ioffe Physical-Technical Institute of the Russian Academy of Sciences)

Presentation materials