JET-C(98)36

Particle Transport in Steady-state ELMy H-modes studied by Trace Tritium Injection during JET DTE-1

Trace amounts of tritium (1-5 % of the deuterium content) have been puffed into steady-state ELMy H-Mode discharges (puff duration 50 msec, tE in the series ranges from 0.2-0.5 sec). The transport properties of the edge and core plasma, and the dynamic response of the tritium fraction in the wall, determine the evolution of the 14 MeV neutron emission in space and time following these puffs. These experiments represent the first measurement of fuel ion transport in an ITER relevant regime. In this paper, we outline the method used to analyse the data, and identify which transport parameters can be measured.
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JETC98036 77.42 Kb