Search for alpha-driven BAE modes in TFTR | Zendy

W. W. Heidbrink | Zendy; S. H. Batha | Zendy; R. E. Bell | Zendy

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Search for alpha-driven BAE modes in TFTR

Author(s) -

W. W. Heidbrink,

S. H. Batha,

R. E. Bell

Publication year - 1996

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/238600

Subject(s) - deuterium , beta (programming language) , alpha (finance) , alpha particle , physics , nuclear physics , population , atomic physics , tritium , medicine , construct validity , demography , nursing , sociology , computer science , patient satisfaction , programming language

A search for alpha-driven beta-induced Alfven eigenmodes (BAE modes) was conducted in low current (1.0--1.6 MA) TFTR supershots. Stable high-beta deuterium-tritium (DT) discharges were obtained with B{rho} = 2.4 and central alpha beta of 0.1%. Instabilities between 75--200 kHz were observed by magnetic probes in many DT discharges, but the activity was also present in deuterium-deuterium (DD) comparison discharges, indicating that these modes are not destabilized (principally) by the alpha-particle population. Losses of fusion products are also similar in the two sets of discharges

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