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VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:NBI Power Loss Mechanisms at ASDEX Upgrade under Different Plasma 
 Configurations
DTSTART:20121002T103000
DTEND:20121002T113000
DTSTAMP:20260929T161050Z
UID:c9a3c6213ddfea1dcdceee29f2c65428ad281f18baab8a0b585e6007
CATEGORIES:Conferences - Seminars
DESCRIPTION:M. Cavedon\, Universitá degli studi di Padova\, Italy\nThe b
 ehaviour of the NBI power loss mechanisms and of the supra-thermal energy 
 fraction changes adopting different magnetic configurations\, i.e. in the 
 case of opposite signs of the toroidal magnetic field and plasma current. 
 To estimate the energy confinement with sufficient accuracy\, this has to 
 be taken into account properly. New results on the NBI losses and suprathe
 rmal energy reconstruction in ASDEX Upgrade will be presented.\nThe power 
 losses arising through different mechanisms have been evaluated on a large
  database of pseudo-discharges simulations made with TRANSP. Multiple regr
 essions analysis of the beam losses have permitted to extend the old param
 etrisation in the conventional magnetic configuration and to provide a com
 pletely new one in the reversed magnetic configuration. The parametrisatio
 n has been validated against simulations of real ASDEX Upgrade discharges 
 and\, given its robustness\, routinely implemented in the plasma energy co
 nfinement calculation. A first comparison of the confinement times in two 
 similar discharges with opposite field signs will be presented.
LOCATION:PPB 019
STATUS:CONFIRMED
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