<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Crombe, K.</style></author><author><style face="normal" font="default" size="100%">Andrew, Y.</style></author><author><style face="normal" font="default" size="100%">Biewer, T. M.</style></author><author><style face="normal" font="default" size="100%">Blanco, E.</style></author><author><style face="normal" font="default" size="100%">de Vries, P. C.</style></author><author><style face="normal" font="default" size="100%">Giroud, C.</style></author><author><style face="normal" font="default" size="100%">Hawkes, N. C.</style></author><author><style face="normal" font="default" size="100%">Meigs, A.</style></author><author><style face="normal" font="default" size="100%">Tala,  T.</style></author><author><style face="normal" font="default" size="100%">von Hellermann, M.</style></author><author><style face="normal" font="default" size="100%">Zastrow, K. D.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Radial electric field in JET advanced tokamak scenarios with toroidal field ripple</style></title><secondary-title><style face="normal" font="default" size="100%">Plasma Physics and Controlled Fusion</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Plasma Phys. Control. Fusion</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">JOINT EUROPEAN TORUS</style></keyword><keyword><style  face="normal" font="default" size="100%">TRANSPORT BARRIERS</style></keyword><keyword><style  face="normal" font="default" size="100%">TURBULENCE</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">May</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">&lt;Go to ISI&gt;://000265584300005 </style></url></web-urls></urls><number><style face="normal" font="default" size="100%">5</style></number><volume><style face="normal" font="default" size="100%">51</style></volume><pages><style face="normal" font="default" size="100%">11</style></pages><isbn><style face="normal" font="default" size="100%">0741-3335</style></isbn><language><style face="normal" font="default" size="100%">English</style></language><abstract><style face="normal" font="default" size="100%">A dedicated campaign has been run on JET to study the effect of toroidal field (TF) ripple on plasma performance. Radial electric field measurements from experiments on a series of plasmas with internal transport barriers (ITBs) and different levels of ripple amplitude are presented. They have been calculated from charge exchange measurements of impurity ion temperature, density and rotation velocity profiles, using the force balance equation. The ion temperature and the toroidal and poloidal rotation velocities are compared in plasmas with both reversed and optimized magnetic shear profiles. Poloidal rotation velocity (v(theta)) in the ITB region is measured to be of the order of a few tens of km s(-1), significantly larger than the neoclassical predictions. Increasing levels of the TF ripple are found to decrease the ion temperature gradient in the ITB region, a measure for the quality of the ITB, and the maximum value of v(theta) is reduced. The poloidal rotation term dominates in the calculations of the total radial electric field (E-r), with the largest gradient in E-r measured in the radial region coinciding with the ITB.</style></abstract><work-type><style face="normal" font="default" size="100%">Article</style></work-type><accession-num><style face="normal" font="default" size="100%">ISI:000265584300005</style></accession-num><notes><style face="normal" font="default" size="100%">ISI Document Delivery No.: 438VQTimes Cited: 0Cited Reference Count: 15</style></notes><custom1><style face="normal" font="default" size="100%">Fusion Physics</style></custom1><auth-address><style face="normal" font="default" size="100%">JET EFDA, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England. [Andrew, Y.; de Vries, P. C.; Giroud, C.; Hawkes, N. C.; Meigs, A.; Zastrow, K-D] UKAEA Euratom Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England. [Biewer, T. M.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Blanco, E.] Asociac EURATOM CIEMAT, Lab Nacl Fus, Madrid, Spain. [Tala, T.] Assoc EURATOM Tekes, VTT Tech Res Ctr Finland, FIN-02044 Espoo, Finland. [von Hellermann, M.] EURATOM, FOM Inst Plasma Phys Rijnhuizen, NL-3430 BE Nieuwegein, Netherlands.Kristel.Crombe@jet.uk</style></auth-address></record></records></xml>