Neutral beam heating on the TCV tokamak

被引：40

作者：

Karpushov, Alexander N. ^{[1
]}

Chavan, Rene ^{[1
]}

Coda, Stefano ^{[1
]}

Davydenko, Vladimir I. ^{[2
]}

Dolizy, Frederic ^{[1
]}

Dranitchnikov, Aleksandr N. ^{[2
]}

Duval, Basil P. ^{[1
]}

Ivanov, Alexander A. ^{[2
]}

Fasel, Damien ^{[1
]}

Fasoli, Ambrogio ^{[1
]}

Kolmogorov, Vyacheslav V. ^{[2
]}

Lavanchy, Pierre ^{[1
]}

Llobet, Xavier ^{[1
]}

Marletaz, Blaise ^{[1
]}

Marmillod, Philippe ^{[1
]}

Martin, Yves ^{[1
]}

Merle, Antoine ^{[1
]}

Perez, Albert ^{[1
]}

Sauter, Olivier ^{[1
]}

Siravo, Ugo ^{[1
]}

Shikhovtsev, Igor V. ^{[2
]}

Sorokin, Aleksey V. ^{[2
]}

Toussaint, Matthieu ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, SPC, CH-1015 Lausanne, Switzerland

[2] RAS, Budker Inst Nucl Phys, SB, Novosibirsk 630090, Russia

来源：

FUSION ENGINEERING AND DESIGN | 2017年 / 123卷

基金：

瑞士国家科学基金会;

关键词：

TCV tokamak; Neutral beam heating; Upgrades;

D O I：

10.1016/j.fusengdes.2017.02.076

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The TCV tokamak contributes to physics understanding in fusion reactor research by harnessing a wide experimental tool set: in particular flexible shaping and high power electron cyclotron heating. Plasma regimes with high plasma pressure, a wider range of temperature ratios and significant fast-ion population are now attainable with a TCV heating system upgrade. In a first stage, a 1 MW neutral beam was installed (2015) and is reported in this paper. The installation of the NB injector required modifications of the vacuum vessel and considerable work on the machine infrastructure, resulting in a shutdown from late 2013 to mid-2015. TCV is now operating partly as a European Medium-Size Tokamak (MST) facility under the auspices of the EUROfusion consortium. The NBI was intensively operated in the February-July 2016 phase of the MST campaign. Record ion temperatures of 2.0-2.5 keV and toroidal rotation velocities up to 160 km/s were promptly attained in the first few L-mode discharges with NB injection. Ion temperatures up to 3.5 keV were subsequently achieved in ELMy H-mode. The injector produces a focused deuterium neutral beam with 25 keV energy, 1 MW neutral power and 2 s duration. Highlights: Installation of 1 MW, 25 keV neutral beam, direct ion heating, access to Ti/Te >= 1. Specific low divergence neutral beam injector with tunable power and energy. Ion temperature of 2.0 keV, toroidal rotation of 160 km/s attained with NB heating. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：468 / 472

页数：5

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