ELM mitigation by means of supersonic molecular beam and pellet injection on the EAST superconducting tokamak
ELM mitigation by means of supersonic molecular beam and pellet injection on the EAST superconducting tokamak
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DOI：
10.1016/j.jnucmat.2014.09.021
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发表时间：
2015-08-01
影响因子：
3.1
通讯作者：
Vinyar, I.
中科院分区：
文献类型：
--
作者：
Hu, J. S.;Sun, Z.;Vinyar, I.
在本文中，我们将介绍EAST的边缘局域模（ELMS）使用最近开发的氘/锂丸注入以及超音速分子束注入（SMBI）缓解的实验结果。在EAST准稳态实验中，利用拉瓦尔喷管，通过SMBI对ELM进行了抑制。使用D-2弹丸注射器，出现一个巨大的ELM，随后出现一个类似于300 Hz的高频ELM脉冲串，持续时间为几十毫秒。此外，一种使用简单的旋转叶轮以每秒几十米的速度注入亚毫米尺寸锂（Li）颗粒的新技术首次成功地用于对ELM进行起搏。这些实验表明，在EAST上，几种技术可以有助于支持未来聚变装置（如ITER）中ELMs控制的数据库。(C)2014爱思唯尔有限公司版权所有。
In this paper, we will present experimental results from EAST on the mitigation of edge localized modes (ELMS) using recently developed deuterium/lithium pellet injections as well as supersonic molecular beam injections (SMBI). Using a Laval nozzle, ELM mitigation with SMBI has been demonstrated in EAST in quasi-steady state. Using a D-2 pellet injector, a giant ELM appears followed by a burst of high frequency ELMs at similar to 300 Hz with duration of a few tens of milliseconds. Furthermore, for the first time, a novel technology using a simple rotating impeller to inject sub-millimeter size lithium (Li) granules at speeds of a few tens of meters per second was successfully used to pace ELMs. These experiments indicate that, on EAST, several technologies can contribute to the database supporting ELMs control in future fusion devices, such as ITER. (C) 2014 Elsevier B.V. All rights reserved.