ICRF results in D-T plasmas in JET and TFTR and implications for ITER

JM Adams*, P Ageladarakis, B Alper, H Altmann, [Unknown] Amasov, S Arshad, P Andrew, Y Andrew, D Bailey, N Bainbridge, B Balet, Y Baranov, P Barker, R Barnsley, M Baronian, DV Bartlett, AC Bell, L Bertalot, E Bertolini, Amit BhatnagarAJ Bickley, H Bindslev, K Blackler, D Bond, T Bonicelli, D Borba, M Brandon, P Breger, H Brelen, P Brennan, WJ Brewerton, ML Browne, T Budd, R Budny, A Burt, T Businaro, M Buzio, C Caldwell-Nicholls, D Campling, P Card, CD Challis, AV Chankin, D Chiron, J Christiansen, P Chuilon, D Ciric, R Claesen, HE Clarke, S Clement, JP Coad, I. Coffey, S Conroy, G Conway, S Cooper, JG Cordey, G Corrigan, G Cottrell, M Cox, SJ Cox, R Cusack, N Davies, SJ Davies, JJ Davis, M de Benedetti, H de Esch, J de Haas, E Deksnis, N Deliyanakis, A Dines, SL Dmitrenko, J Dobbing, N Dolgetta, SE Dorling, PG Doyle, H Duquenoy, AM Edwards, AW Edwards, J Egedal, J Ehrenberg, A Ekedahl, T Elevant, J Ellis, M Endler, SK Erents, G Ericsson, B Esposito, LG Eriksson, H Falter, JW Farthing, M Fichtmuller, G Fishpool, K Fullard, M Gadeberg, L Galbiati, A Gibson, RD Gill, D Godden, A Gondhalekar, D Goodall, C Gormezano, C Gowers, M Groth, K Guenther, H Guo, A Haigh, B Haist, CJ Hancock, PJ Harbour, NC Hawkes, NP Hawkes, JL Hemmerich, T Hender, J Hoekzema, L Horton, A Howman, M Huart, TP Hughes, F Hurd, G Huysmans, C Ingesson, B Ingram, M Irving, J Jacquinot, H Jaeckel, JF Jaeger, ON Jarvis, M Johnson, EM Jones, TTC Jones, JF Junger, F Junique, C Jupen, J Kallne, A Kaye, BE Keen, M Keilhacker, W Kerner, NG Kidd, S Knipe, R Konig, A Korotkov, A Krasilnikov, JG Krom, P Kupschus, R Lasser, M. Last, L Lauro-Taroni, K Lawson, M Lennholm, J Lingertat, X. Litaudon, T Loarer, PJ Lomas, M Loughlin, C Lowry, AC Maas, B Macklin, CF Maggi, M Mantsinen, [Unknown] Marchese, F Marcus, J Mart, D Martin, G Matthews, H McBryan, G McCracken, PA McCullen, A Meigs, R Middleton, P Miele, F Milani, J Mills, R Mohanti, R Monk, P Morgan, G Murphy, F Nave, G Newbert, P Nielsen, P Noll, W Obert, D O'Brien, M O'Mullane, E Oord, R Ostrom, S Papastergiou, VV Parail, R Parkinson, W Parsons, B Patel, A Paynter, A Perevezentsev, A Peacock, RJH Pearce, MA Pick, J Plancoulaine, O Pogutse, R Prentice, S Puppin, G Radford, R Reichle, V. Riccardo, F Rimini, F Rochard, A Rolfe, AL Roquemore, RT Ross, A Rossi, G Sadler, G Saibene, A Santaguistina, R Sartori, R Saunders, P Schild, M Schmid, Ute Schmidt, B Schokker, B Schunke, SM Scott, S Sharapov, A Sibley, M Simon, R Simonini, ACC Sips, P Smeulders, P Smith, R Smith, F Soldner, J Spence, E Springman, R Stagg, M Stamp, P Stangeby, DF Start, D Stork, PE Stott, JD Strachan, P Stubberfield, D Summers, L Svensson, P Svensson, A Tabasso, M Tabellini, J Tait, A Tanga, A Taroni, C Terella, PR Thomas, K Thomsen, E Traneus, B Tubbing, P Twyman, A Vadgama, P van Belle, GC Vlases, M von Hellermann, T Wade, R Walton, D Ward, ML Watkins, N Watkins, MJ Watson, M Wheatley, D Wilson, T Winkel, D Young, ID Young, Q Yu, KD Zastrow, W Zwingmann, KM McGuire, CW Barnes, SH Batha, MA Beer, MG Bell, RE Bell, A Belov, HL Berk, S Bernabei, M Bitter, BN Breizman, NL Bretz, RV Budny, CE Bush, JD Callen, S Cauffman, CS Chang, Z Chang, CZ Cheng, GA Cottell, DS Darrow, RO Dendy, W Dorland, H Duong, PC Efthimion, D Ernst, H Evenson, NJ Fisch, R Fisher, RJ Fonck, CB Forest, ED Fredrickson, GY Fu, HP Furth, VY Goloborod'ko, NN Gorelenkov, B Grek, LR Grisham, GW Hammett, GR Hanson, RJ Hawryluk, WW Heidbrink, HW Herrmann, M Herrmann, KW Hill, J Hogan, B Hooper, JC Hosea, WA Houlberg, M Hughes, RA Hulse, DL Jassby, FC Jobes, DW Johnson, R Kaita, SM Kaye, J Kesner, JS Kim, M Kissick, AV Krasilnikov, HW Kugel, A Kumar, NT Lam, P LaMarche, B LeBlanc, FM Levinton, C Ludescher, J Machuzak, R Majeski, J Manickam, DK Mansfield, ME Mauel, E Mazzucato, J McChesney, DC McCune, G McKee, DM Meade, SS Medley, R Mika, DR Mikkelsen, SV Mirnov, D Mueller, Y Nagayama, GA Navratil, R Nazikian, M Okabayashi, DK Owens, HK Park, W Park, P Parks, SF Paul, MP Petrov, CK Phillips, M Phillips, P Phillips, AT Ramsey, MH Redi, G Rewoldt, S Reznik, JH Rogers, AL Roquemore, E Ruskov, SA Sabbagh, M Sasao, G Schilling, J Schivell, GL Schmidt, SD Scott, IB Senenov, T Senko, S Sesnic, CH Skinner, T Stevenson, W Stodiek, JD Strachan, EJ Strait, BC Stratton, EJ Synakowski, H Takahashi, WM Tang, G Taylor, JL Terry, ME Thompson, S Von Goeler, A Von Halle, RT Walters, S Wang, RB White, RM Wieland, M Williams, Ben Wilson, KL Wong, GA Wurden, M Yamada, [Unknown] Yavorski, KM Young, LE Zakharov, MC Zarnstorff, SJ Zweben

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Recent experiments in D-T plasmas on the JET and TFTR tokamaks have evaluated a wide range of ITER relevant ion cyclotron heating scenarios. Absorption of fast waves at the second-harmonic tritium resonance has provided bulk ion heating in TFTR supershots and electron heating in JET H-mode discharges. In JET, deuterium minority heating has generated 1.7 MW of fusion power with 6 MW of radio frequency power giving a record steady-state Q-value of 0.22. Strong bulk ion heating has been achieved with He-3 minority heating with central ion temperatures up to 13 keV being produced in H-modes with a density of 3.6 x 10(19) m(-3) Hydrogen, deuterium and He-3 minority heating methods have produced plasmas with normalized confinement times greater than or equal to that required by ITER for ignition. These H-modes are characterized by small-amplitude, high-frequency ELMs, each of which transports less than 1.5% of the plasma energy content to the limiters. The heavy minority scheme of tritium in a deuterium plasma has been demonstrated both as a heating scheme and a generator of suprathermal neutrons. On TFTR mode conversion to an ion Bernstein wave has achieved central bulk ion heating in supershots with target ion temperatures greater than 20 keV.

Original languageEnglish
Pages (from-to)A87-A103
Number of pages17
JournalPlasma Physics and Controlled Fusion
Volume40
Publication statusPublished - 1998
MoE publication typeA1 Journal article-refereed

Keywords

  • ION-CYCLOTRON RANGE
  • CURRENT DRIVE

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