학술논문
Higher fusion power gain with profile control in DIII-D tokamak plasmas
Document Type
article
Author
Lazarus, EA; Navratil, GA; Greenfield, CM; Strait, EJ; Austin, ME; Burrell, KH; Casper, TA; Baker, DR; DeBoo, JC; Doyle, EJ; Durst, RD; Ferron, JR; Forest, CB; Gohil, P; Groebner, RJ; Heidbrink, WW; Hong, R; Howald, AW; Hsieh, C-L; Hyatt, AW; Jackson, GL; Kim, J; Lao, LL; Lanier, CJ; Leonard, AW; Lohr, JM; La Haye, RJ; Maingi, R; Miller, RL; Murakami, M; Osborne, TH; Perkins, LJ; Petty, CC; Rettig, CL; Rhodes, TL; Rice, BW; Sabbagh, SA; Schissel, DP; Scoville, JT; Snider, RT; Stallard, BW; Stambaugh, RD; St. John, HE; Stockdale, RE; Taylor, PL; Taylor, TS; Thomas, DM; Turnbull, AD; Wade, MR; Wood, RD; Whye, DG
Source
Nuclear Fusion. 37(1)
Subject
Language
Abstract
Strong shaping, favourable for stability and improved energy confinement, together with a significant expansion of the central region of improved confinement in negative central magnetic shear target plasmas, increased the maximum fusion power produced in DIII-D by a factor of 3. Using deuterium plasmas, the highest fusion power gain, the ratio of fusion power to input power, Q, was 0.0015, corresponding to an equivalent Q of 0.32 in a deuterium-tritium plasma, which is similar to values achieved in tokamaks of larger size and magnetic field. A simple transformation relating Q to the stability parameters is presented.