Isotope scaling of the H mode power threshold on JET

被引：113

作者：

Righi, E ^{[1
]}

Bartlett, DV ^{[1
]}

Christiansen, JP ^{[1
]}

Conway, GD ^{[1
]}

Cordey, JG ^{[1
]}

Eriksson, LG ^{[1
]}

De Esch, HPL ^{[1
]}

Fishpool, GM ^{[1
]}

Gowers, CW ^{[1
]}

de Haas, JCM ^{[1
]}

Harbour, PJ ^{[1
]}

Hawkes, NC ^{[1
]}

Jacquinot, J ^{[1
]}

Jones, TTC ^{[1
]}

Kerner, W ^{[1
]}

King, QA ^{[1
]}

Lowry, CG ^{[1
]}

Monk, RD ^{[1
]}

Nielsen, P ^{[1
]}

Rimini, FG ^{[1
]}

Saibene, G ^{[1
]}

Sartori, R ^{[1
]}

Schunke, B ^{[1
]}

Sips, ACC ^{[1
]}

Smith, RJ ^{[1
]}

Stamp, MF ^{[1
]}

Start, DFH ^{[1
]}

Thomsen, K ^{[1
]}

Tubbing, BJD ^{[1
]}

Zornig, N ^{[1
]}

机构：

[1] Jet Joint Undertaking, Abingdon OX14 3EA, Oxon, England

来源：

NUCLEAR FUSION | 1999年 / 39卷 / 03期

关键词：

D O I：

10.1088/0029-5515/39/3/302

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Results are presented from a series of dedicated experiments carried out on JET in tritium, DT, deuterium and hydrogen plasmas to determine the dependence of the H mode power threshold on the plasma isotopic mass. The P-thr proportional to A(eff)(-1) scaling is established over the whole isotopic range. This result makes it possible for a fusion reactor with a 50:50 DT mixture to access the H mode regime with about 20% less power than that needed in a DD mixture. Results on the first systematic measurements of the power necessary for the transition of the plasma to the type I ELM regime, which occurs after the transition to H mode, are also in agreement with the A(eff)(-1) scaling. For a subset of discharges, measurements of T-e and T-i at the top of the profile pedestal have been obtained, indicating a weak influence of the isotopic mass on the critical edge temperature thought to be necessary for the H mode transition.

引用

页码：309 / 319

页数：11

共 16 条

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