Modeling of JET Optimised Shear Discharges

摘要

1. OS L- and H-mode plasmas have produced the highest DD fusion reaction rate in JET (R_(NT) = 5.6 × 10~(16) neutrons / sec). The maximum R_(NT) may be in either L- or H-mode. Analysis shows the formation and growth of a region of reduced x_i, and x_f reaching ρ < 0.6 in a time of ～ 1_s. 2. At maximum R_(NT), TRANSP and kinetic EFIT equilibria both indicate shear reversal with q_0 ～ 2.1 and q_(min) ～1.5 -1.9 at r(q_(min))≈0.4-0.5. 3. NBI particles are contained inside the ITB for - 2 sec until the ITB degrades.