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Fusion"],"published-print":{"date-parts":[[2011,10,1]]},"abstract":"<jats:p>Experiments at DIII-D investigated the effects of magnetic error fields similar to those expected from proposed ITER test blanket modules (TBMs) containing ferromagnetic material. Studied were effects on: plasma rotation and locking, confinement, L\u2013H transition, the H-mode pedestal, edge localized modes (ELMs) and ELM suppression by resonant magnetic perturbations, energetic particle losses, and more. The experiments used a purpose-built three-coil mock-up of two magnetized ITER TBMs in one ITER equatorial port. The largest effect was a reduction in plasma toroidal rotation velocity <jats:italic>v<\/jats:italic> across the entire radial profile by as much as \u0394<jats:italic>v<\/jats:italic>\/<jats:italic>v<\/jats:italic> \u223c 60% via non-resonant braking. Changes to global \u0394<jats:italic>n<\/jats:italic>\/<jats:italic>n<\/jats:italic>, \u0394\u03b2\/\u03b2 and \u0394H<jats:sub>98<\/jats:sub>\/H<jats:sub>98<\/jats:sub> were \u223c3 times smaller. These effects are stronger at higher \u03b2. Other effects were smaller. The TBM field increased sensitivity to locking by an applied known <jats:italic>n<\/jats:italic> = 1 test field in both L- and H-mode plasmas. Locked mode tolerance was completely restored in L-mode by re-adjusting the DIII-D <jats:italic>n<\/jats:italic> = 1 error field compensation system. Numerical modelling by IPEC reproduces the rotation braking and locking semi-quantitatively, and identifies plasma amplification of a few <jats:italic>n<\/jats:italic> = 1 Fourier harmonics as the main cause of braking. IPEC predicts that TBM braking in H-mode may be reduced by <jats:italic>n<\/jats:italic> = 1 control. Although extrapolation from DIII-D to ITER is still an open issue, these experiments suggest that a TBM-like error field will produce only a few potentially troublesome problems, and that they might be made acceptably small.<\/jats:p>","DOI":"10.1088\/0029-5515\/51\/10\/103028","type":"journal-article","created":{"date-parts":[[2011,9,3]],"date-time":"2011-09-03T03:13:59Z","timestamp":1315019639000},"page":"103028","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":48,"title":["ITER test blanket module error field simulation experiments at DIII-D"],"prefix":"10.1088","volume":"51","author":[{"given":"M.J.","family":"Schaffer","sequence":"first","affiliation":[]},{"given":"J.A.","family":"Snipes","sequence":"additional","affiliation":[]},{"given":"P.","family":"Gohil","sequence":"additional","affiliation":[]},{"given":"P.","family":"de Vries","sequence":"additional","affiliation":[]},{"given":"T.E.","family":"Evans","sequence":"additional","affiliation":[]},{"given":"M.E.","family":"Fenstermacher","sequence":"additional","affiliation":[]},{"given":"X.","family":"Gao","sequence":"additional","affiliation":[]},{"given":"A.M.","family":"Garofalo","sequence":"additional","affiliation":[]},{"given":"D.A.","family":"Gates","sequence":"additional","affiliation":[]},{"given":"C.M.","family":"Greenfield","sequence":"additional","affiliation":[]},{"given":"W.W.","family":"Heidbrink","sequence":"additional","affiliation":[]},{"given":"G.J.","family":"Kramer","sequence":"additional","affiliation":[]},{"given":"R.J.","family":"La Haye","sequence":"additional","affiliation":[]},{"given":"S.","family":"Liu","sequence":"additional","affiliation":[]},{"given":"A.","family":"Loarte","sequence":"additional","affiliation":[]},{"given":"M.F.F.","family":"Nave","sequence":"additional","affiliation":[]},{"given":"T.H.","family":"Osborne","sequence":"additional","affiliation":[]},{"given":"N.","family":"Oyama","sequence":"additional","affiliation":[]},{"given":"J.-K.","family":"Park","sequence":"additional","affiliation":[]},{"given":"N.","family":"Ramasubramanian","sequence":"additional","affiliation":[]},{"given":"H.","family":"Reimerdes","sequence":"additional","affiliation":[]},{"given":"G.","family":"Saibene","sequence":"additional","affiliation":[]},{"given":"A.","family":"Salmi","sequence":"additional","affiliation":[]},{"given":"K.","family":"Shinohara","sequence":"additional","affiliation":[]},{"given":"D.A.","family":"Spong","sequence":"additional","affiliation":[]},{"given":"W.M.","family":"Solomon","sequence":"additional","affiliation":[]},{"given":"T.","family":"Tala","sequence":"additional","affiliation":[]},{"given":"Y.B.","family":"Zhu","sequence":"additional","affiliation":[]},{"given":"J.A.","family":"Boedo","sequence":"additional","affiliation":[]},{"given":"V.","family":"Chuyanov","sequence":"additional","affiliation":[]},{"given":"E.J.","family":"Doyle","sequence":"additional","affiliation":[]},{"given":"M.","family":"Jakubowski","sequence":"additional","affiliation":[]},{"given":"H.","family":"Jhang","sequence":"additional","affiliation":[]},{"given":"R.M.","family":"Nazikian","sequence":"additional","affiliation":[]},{"given":"V.D.","family":"Pustovitov","sequence":"additional","affiliation":[]},{"given":"O.","family":"Schmitz","sequence":"additional","affiliation":[]},{"given":"R.","family":"Srinivasan","sequence":"additional","affiliation":[]},{"given":"T.S.","family":"Taylor","sequence":"additional","affiliation":[]},{"given":"M.R.","family":"Wade","sequence":"additional","affiliation":[]},{"given":"K.-I.","family":"You","sequence":"additional","affiliation":[]},{"given":"L.","family":"Zeng","sequence":"additional","affiliation":[]}],"member":"266","published-online":{"date-parts":[[2011,9,2]]},"reference":[{"key":"nf384122bib01","doi-asserted-by":"publisher","first-page":"1829","DOI":"10.1016\/j.fusengdes.2010.06.005","volume":"85","year":"2010","journal-title":"Fusion Eng. 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