Details

Autor(en) / Beteiligte

• Shoshin, A.A.
• Arakcheev, A.S.
• Arzhannikov, A.V.
• Burdakov, A.V.
• Ivanov, I.A.
• Kasatov, A.A.
• Kuklin, K.N.
• Polosatkin, S.V.
• Postupaev, V.V.
• Sinitsky, S.L.
• Vasilyev, A.A.
• Vyacheslavov, L.N.

Titel

Study of plasma-surface interaction at the GOL-3 facility

Ist Teil von

• Fusion engineering and design, 2017-01, Vol.114, p.157-179

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2017

Quelle

Elsevier ScienceDirect Journals

Beschreibungen/Notizen

• The review presents experimental studies of plasma-surface interaction and materials behavior under plasma loads done in the multiple-mirror trap of the GOL-3 facility. In the experiments for the PSI, the energy density in the extracted plasma stream varies from 0.5 to 30MJ/m2. Parameters of near-surface plasma measured by a set of diagnostics are reviewed. Surface patterns of targets exposed to the plasma are analyzed. The erosion depth depends on the energy loads—it rises from 0 to 600μm at 0.5 and 30MJ/m2, correspondingly. Cracking and evolution of graphite and tungsten surface morphology are discussed. The enthalpy of brittle destruction of graphite (10kJ/g), which determines the threshold of bulk damage of targets irradiated with a charged-particle flux with large penetration depth, was determined. Comparison of different facilities for PSI studies are presented. Heat flux play a key role to the target surface erosion.