Simulations of deuterium-tritium experiments in TFTR

R. V. Budny, M. G. Bell, H. Biglari, M. Bitter, C. E. Bush, C. Z. Cheng, E. D. Fredrickson, B. Grek, K. W. Hill, H. Hsuan, A. C. Janos, D. L. Jassby, D. W. Johnson, L. C. Johnson, B. Leblanc, D. C. McCune, D. R. Mikkelsen, H. K. Park, A. T. Ramsey, S. A. SabbaghS. D. Scott, J. F. Schivell, J. D. Strachan, B. C. Stratton, E. J. Synakowski, G. Taylor, M. C. Zarnstorff, S. J. Zweben

研究成果: Article

147 引文 斯高帕斯(Scopus)

摘要

A transport code (TRANSP) is used to simulate future deuterium-tritium (DT) experiments in TFTR. The simulations are derived from 14 TFTR DD discharges, and the modelling of one supershot is discussed in detail to indicate the degree of accuracy of the TRANSP modelling. Fusion energy yields and alpha particle parameters are calculated, including profiles of the alpha slowing down time, the alpha average energy, and the Alfven speed and frequency. Two types of simulation are discussed. The main emphasis is on the DT equivalent, where an equal mix of D and T is substituted for the D in the initial target plasma, and for the D0 in the neutral beam injection, but the other measured beam and plasma parameters are unchanged. This simulation does not assume that alpha heating will enhance the plasma parameters or that confinement will increase with the addition of tritium. The maximum relative fusion yield calculated for these simulations is QDT ∼ 0.3, and the maximum alpha contribution to the central toroidal β is βα(0) ∼ 0.5%. The stability of toroidicity induced Alfven eigenmodes (TAE) and kinetic ballooning modes (KBM) is discussed. The TAE mode is predicted to become unstable for some of the simulations, particularly after the termination of neutral beam injection. In the second type of simulation, empirical supershot scaling relations are used to project the performance at the maximum expected beam power. The MHD stability of the simulations is discussed.

原文English
文章編號I07
頁(從 - 到)429-447
頁數19
期刊Nuclear Fusion
32
發行號3
DOIs
出版狀態Published - 1992 十二月 1

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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    Budny, R. V., Bell, M. G., Biglari, H., Bitter, M., Bush, C. E., Cheng, C. Z., Fredrickson, E. D., Grek, B., Hill, K. W., Hsuan, H., Janos, A. C., Jassby, D. L., Johnson, D. W., Johnson, L. C., Leblanc, B., McCune, D. C., Mikkelsen, D. R., Park, H. K., Ramsey, A. T., ... Zweben, S. J. (1992). Simulations of deuterium-tritium experiments in TFTR. Nuclear Fusion, 32(3), 429-447. [I07]. https://doi.org/10.1088/0029-5515/32/3/I07