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Charge exchange and fusion reaction measurements during compression experiments with neutral beam heating in the tokamak fusion test reactor
Authors
AA Chan
AC England
+12 more
GW Hammett
WW Heidbrink
HW Hendel
R Kaita
SS Medly
E Nieschmidt
AL Roquemore
SD Scott
JD Strachan
GD Tait
G Taylor
KL Wong
Publication date
1 January 1986
Publisher
eScholarship, University of California
Abstract
Adiabatic toroidal compression experiments were performed in conjunction with high power neutral beam injection in the Tokamak Fusion Test Reactor (TFTR). Acceleration of beam ions to energies nearly twice the injection energy was measured with a charge exchange neutral particle analyser. Measurements were also made of 2.5 MeV neutrons and 15 MeV protons produced in fusion reactions between the deuterium beam ions and the thermal deuterium and3He ions, respectively. When the plasma was compressed, the d(d, n)3He fusion reaction rate increased by a factor of five, and the3He(d, p) α rate by a factor of twenty. These data were simulated with a bounce averaged Fokker-Planck program, which assumed conservation of angular momentum and magnetic moment during compression. The results indicate that the beam ion acceleration was consistent with adiabatic scaling. © 1986 IOP Publishing Ltd
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Last time updated on 25/12/2021