This title appears in the Scientific Report :
2000
Please use the identifier:
http://hdl.handle.net/2128/1867 in citations.
Quasistationary high confinement discharges with Trans-Greenwald density in TEXTOR-94
Quasistationary high confinement discharges with Trans-Greenwald density in TEXTOR-94
Confinement quality as good as ELM-free H-mode at densities substantially above die Greenwald density limit((n) over bar(e,0)/n(GW) = 1.4) has been obtained in discharges with a radiative boundary under quasistationary conditions for 20 times the energy confinement time. This is achieved by optimizi...
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Personal Name(s): | Mank, G. |
---|---|
Messiaen, A. M. / Ongena, J. / Unterberg, B. / Dumortier, P. / Finken, K. H. / Jaspers, R. / Koslowski, H. R. / Krämer-Flecken, A. / Rapp, J. / Samm, U. / van Wassenhove, G. / Weynants, R. R. / TEXTOR-Team | |
Contributing Institute: |
Institut für Plasmaphysik; IPP |
Published in: | Physical review letters, 85 (2000) S. 2312 - 2315 |
Imprint: |
College Park, Md.
APS
2000
|
Physical Description: |
2312 - 2315 |
Document Type: |
Journal Article |
Research Program: |
TEC-ERM TEC-FOM Instabilitäten und transportvorgänge im Plasma Teilchen- und Energietransport in der Plasmarandschicht Apparative Methoden zum Teilchenkreislauf und zur Leistungsauskopplung |
Series Title: |
Physical Review Letters
85 |
Subject (ZB): | |
Link: |
OpenAccess |
Publikationsportal JuSER |
Confinement quality as good as ELM-free H-mode at densities substantially above die Greenwald density limit((n) over bar(e,0)/n(GW) = 1.4) has been obtained in discharges with a radiative boundary under quasistationary conditions for 20 times the energy confinement time. This is achieved by optimizing the gas-fueling rate of RI-mode discharges which tailors their favorable energy confinement and lends to discharges with beta values just below the operational limit beta(n) = 2 of TEXTOR-94, thereby effectively avoiding confinement back transitions or disruptions. In addition, this high-density regime is favorable for helium removal and results in figures of merit tau(p,He)(*)/tau(E) approximate to 10-15, relevant for a future fusion power reactor. |