Internal transport barriers in optimized shear plasmas in JET
A C C Sips; Y F Baranov; C D Challis; G A Cottrell; L-G Eriksson; C Gormezano; C Gowers; C M Greenfield; J C M de Haas; M von Hellermann; G T A Huysmans; A Howman; R König; E A Lazarus; T Luce; P Nielsen; D O'Brien; B W Rice; G Sadler; F X Söldner; M F Stamp; E J Strait; B J D Tubbing; M Wade; D J Ward; A C C Sips; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; Y F Baranov; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; C D Challis; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; G A Cottrell; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; L-G Eriksson; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; C Gormezano; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; C Gowers; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; C M Greenfield; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; J C M de Haas; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; M von Hellermann; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; G T A Huysmans; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; A Howman; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; R König; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; E A Lazarus; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; T Luce; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; P Nielsen; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; D O'Brien; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; B W Rice; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; G Sadler; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; F X Söldner; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; M F Stamp; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; E J Strait; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; B J D Tubbing; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; M Wade; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK; D J Ward; JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA, UK
Журнал:
Plasma Physics and Controlled Fusion
Дата:
1998-05-01
Аннотация:
Experiments using high-power heating during the current ramp-up phase of the discharge have obtained the highest D-D neutron rates in JET; neutrons , with , keV and keV. The best discharges ( MA and tesla) have peaked pressure profiles with a transport barrier located at = 0.55. The pressure peaking is limited by MHD modes and requires active input power control to achieve the best performance. Deuterium neutral beam injection into a tritium-rich target plasma has established internal transport barriers at power levels close to the lowest threshold for pure deuterium plasmas.
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