Plasma heating and generation of energetic D ions with the 3-ion ICRF + NBI scenario in mixed H-D plasmas at JET-ILW

被引：40

作者：

Kazakov, Ye. O. ^{[1
]}

Nocente, M. ^{[2
,3
]}

Mantsinen, M. J. ^{[4
,5
]}

Ongena, J. ^{[1
]}

Baranov, Y. ^{[6
]}

Craciunescu, T. ^{[7
]}

Dreval, M. ^{[8
]}

Dumont, R. ^{[9
]}

Eriksson, J. ^{[10
]}

Garcia, J. ^{[9
]}

Giacomelli, L. ^{[3
]}

Kiptily, V. G. ^{[6
]}

Kirov, K. K. ^{[6
]}

Meneses, L. ^{[11
]}

Nabais, F. ^{[11
]}

Nave, M. F. F. ^{[11
]}

Salewski, M. ^{[12
]}

Sharapov, S. E. ^{[6
]}

Stancar, Z. ^{[13
]}

Varje, J. ^{[14
]}

Weisen, H. ^{[15
]}

机构：

[1] LPP ERM KMS, Lab Plasma Phys, TEC Partner, Brussels, Belgium

[2] Univ Milano Bicocca, Dipartimento Fis, Milan, Italy

[3] CNR, Inst Plasma Sci & Technol, Milan, Italy

[4] Barcelona Supercomp Ctr BSC, Barcelona, Spain

[5] ICREA, Barcelona, Spain

[6] Culham Sci Ctr, CCFE, Abingdon, Oxon, England

[7] Natl Inst Laser Plasma & Radiat Phys, Bucharest, Romania

[8] Natl Sci Ctr Kharkiv Inst Phys & Technol, Inst Plasma Phys, Natl Sci Ctr, Kharkiv, Ukraine

[9] CEA, IRFM, St Paul Les Durance, France

[10] Uppsala Univ, Dept Phys & Astron, Uppsala, Sweden

[11] Univ Lisbon, IST, Lisbon, Portugal

[12] Tech Univ Denmark, Dept Phys, Lyngby, Denmark

[13] Jozef Stefan Inst, Ljubljana, Slovenia

[14] Aalto Univ, Espoo, Finland

[15] Swiss Plasma Ctr SPC, EPFL, Lausanne, Switzerland

来源：

NUCLEAR FUSION | 2020年 / 60卷 / 11期

关键词：

ICRF; 3-ion ICRF scenarios; plasma heating; fast-ion generation; ICRF plus NBI synergies; mixed plasmas; MODE CONVERSION; CYCLOTRON RANGE; CHAPTER; 6; DIAGNOSTICS; PHYSICS;

D O I：

10.1088/1741-4326/ab9256

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：

Dedicated experiments were conducted in mixed H-D plasmas in JET to demonstrate the efficiency of the 3-ion ICRF scenario for plasma heating, relying on injected fast NBI ions as the resonant ion component. Strong core localization of the RF power deposition in the close vicinity of the ion-ion hybrid layer was achieved, resulting in an efficient plasma heating, generation of energetic D ions, strong enhancement of the neutron rate and observation of Alfvenic modes. A consistent physical picture that emerged from a range of fast-ion measurements at JET, including neutron and gamma-ray measurements, a high-energy neutral particle analyzer and MHD mode localization analysis, is presented. The possibility to moderate the fast-ion energies with the ratioP(ICRF)/P(NBI)and the choice of the NBI injectors is demonstrated. An outlook of possible applications of the 3-ion scenarios, including a recent example of its use in mixed D-He-3 plasmas in JET and promising scenarios for D-T plasmas, are presented.

引用

页数：14

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