On the influence of atomic physics mechanisms on edge plasma turbulence in the TJ‐I and Princeton Beta Experiment‐Modified tokamaks

The role of neutrals as a driving force of plasma turbulence was investigated in the TJ‐I tokamak [Phys. Fluids B 5, 4051 (1993)]. No influence of the local neutral source strength on fluctuation levels was found, neither in the plasma bulk side nor in the scrape‐off layer side of the velocity shear...

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Bibliographic Details
Published in:Physics of plasmas 1995-07, Vol.2 (7), p.2618-2620
Main Authors: Pedrosa, M. A., García‐Cortés, I., Brañas, B., Balbín, R., Hidalgo, C., Schmitz, L., Tynan, G., Post‐Zwicker, A.
Format: Article
Language:English
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Summary:The role of neutrals as a driving force of plasma turbulence was investigated in the TJ‐I tokamak [Phys. Fluids B 5, 4051 (1993)]. No influence of the local neutral source strength on fluctuation levels was found, neither in the plasma bulk side nor in the scrape‐off layer side of the velocity shear layer location. Helium puffing was used to study the influence of impurity radiation on turbulence in the Princeton Beta Experiment‐Modified (PBX‐M) [Plasma Physics and Controlled Nuclear Fusion Research 1988 (International Atomic Physics Agency, Nice, 1989), Vol. 1, p. 97]. Evidence of fluctuation levels modified increasing He‐impurity radiation was obtained.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.871225