Geometric dependence of the energy confinement time scaling for H-mode discharges

Miura Y. Miura, Takizuka T. Takizuka, Tamai H. Tamai, Matsuda T. Matsuda, Suzuki N. Suzuki, Mori M. Mori, Maeda H. Maeda, Itoh K. Itoh, Sanae Itoh, Kardaun O.j.w.f. Kardaun

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Abstract

The dependence of the H-mode energy confinement time τE on the plasma elongation and the divertor configuration is studied. A regression analysis of the H-mode database is presented in which the dependence on the closed/open divertor configuration, estimated from the ASDEX experiments, is included. The dependence of τE on the elongation factor k is found to be positive (approximately k0.6) for ELM-free H-mode discharges, in accordance with experimental results for ELM-free limiter H-mode plasmas in JFT-2M. In addition, the influence of the X-point configuration (single null or double null) on the confinement time is briefly addressed.

Original languageEnglish
Article numberI15
Pages (from-to)1473-1479
Number of pages7
JournalNuclear Fusion
Volume32
Issue number8
DOIs
Publication statusPublished - Dec 1 1992

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scaling
elongation
configurations
energy
regression analysis

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

Y. Miura, M., T. Takizuka, T., H. Tamai, T., T. Matsuda, M., N. Suzuki, S., M. Mori, M., ... O.j.w.f. Kardaun, K. (1992). Geometric dependence of the energy confinement time scaling for H-mode discharges. Nuclear Fusion, 32(8), 1473-1479. [I15]. https://doi.org/10.1088/0029-5515/32/8/I15

Geometric dependence of the energy confinement time scaling for H-mode discharges. / Y. Miura, Miura; T. Takizuka, Takizuka; H. Tamai, Tamai; T. Matsuda, Matsuda; N. Suzuki, Suzuki; M. Mori, Mori; H. Maeda, Maeda; K. Itoh, Itoh; Itoh, Sanae; O.j.w.f. Kardaun, Kardaun.

In: Nuclear Fusion, Vol. 32, No. 8, I15, 01.12.1992, p. 1473-1479.

Research output: Contribution to journalArticle

Y. Miura, M, T. Takizuka, T, H. Tamai, T, T. Matsuda, M, N. Suzuki, S, M. Mori, M, H. Maeda, M, K. Itoh, I, Itoh, S & O.j.w.f. Kardaun, K 1992, 'Geometric dependence of the energy confinement time scaling for H-mode discharges', Nuclear Fusion, vol. 32, no. 8, I15, pp. 1473-1479. https://doi.org/10.1088/0029-5515/32/8/I15
Y. Miura M, T. Takizuka T, H. Tamai T, T. Matsuda M, N. Suzuki S, M. Mori M et al. Geometric dependence of the energy confinement time scaling for H-mode discharges. Nuclear Fusion. 1992 Dec 1;32(8):1473-1479. I15. https://doi.org/10.1088/0029-5515/32/8/I15
Y. Miura, Miura ; T. Takizuka, Takizuka ; H. Tamai, Tamai ; T. Matsuda, Matsuda ; N. Suzuki, Suzuki ; M. Mori, Mori ; H. Maeda, Maeda ; K. Itoh, Itoh ; Itoh, Sanae ; O.j.w.f. Kardaun, Kardaun. / Geometric dependence of the energy confinement time scaling for H-mode discharges. In: Nuclear Fusion. 1992 ; Vol. 32, No. 8. pp. 1473-1479.
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