Transport studies using laser blow-off injection of low-Z trace impurities injected into the TJ-II stellarator

B. Zurro; E. Hollmann; A. Baciero; M.A. Ochando; F. Medina; K.J. McCarthy; E. Blanco; E. de la Cal; D. Carralero; M.A. Pedrosa

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Transport studies using laser blow-off injection of low-Z trace impurities injected into the TJ-II stellarator

机译：使用激光吹入注入到TJ-II恒星仪中的低Z痕量杂质进行运输研究

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Trace (<5%) impurity seeding of boron and carbon by laser blow-off is used to study low-Z parallel and radial impurity transport in the TJ-II stellarator. Toroidal transport is observed to be quite rapid τφ～ 0.1 ms, roughly consistent with expectations of collisionless (kinetic) parallel ion transport. Radial impurity de-confinement of injected impurities to the plasma wall is measured to be much slower, τφ ～ 10 ms. The data suggest a slightly higher τ_r for carbon than for boron, but no clear charge state dependence is observed in contrast with expectations for neoclassical transport in the low collisionality regime.

机译：通过激光吹扫将痕量（<5％）的硼和碳杂质晶种用于研究TJ-II恒星分离器中的低Z平行和径向杂质传输。观察到环形传输非常快τφ〜0.1 ms，大致与无碰撞（动力学）平行离子传输的预期一致。经测量，向径向杂质壁注入的径向杂质的约束要慢得多，τφ〜10 ms。数据表明碳的τ_r比硼略高，但与低碰撞性体系中新古典运输的预期相反，没有观察到明显的电荷状态依赖性。

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来源
《Nuclear fusion》 |2011年第6期|p.17.1-17.9|共9页
作者
B. Zurro; E. Hollmann; A. Baciero; M.A. Ochando; F. Medina; K.J. McCarthy; E. Blanco; E. de la Cal; D. Carralero; M.A. Pedrosa;
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作者单位

Laboratorio Nacional de Fusion, Asociacion EURATOM-CIEMAT, Madrid, Spain;

University of California, San Diego, La Jolla, CA, USA;

Laboratorio Nacional de Fusion, Asociacion EURATOM-CIEMAT, Madrid, Spain;

Laboratorio Nacional de Fusion, Asociacion EURATOM-CIEMAT, Madrid, Spain;

Laboratorio Nacional de Fusion, Asociacion EURATOM-CIEMAT, Madrid, Spain;

Laboratorio Nacional de Fusion, Asociacion EURATOM-CIEMAT, Madrid, Spain;

Laboratorio Nacional de Fusion, Asociacion EURATOM-CIEMAT, Madrid, Spain;

Laboratorio Nacional de Fusion, Asociacion EURATOM-CIEMAT, Madrid, Spain;

Laboratorio Nacional de Fusion, Asociacion EURATOM-CIEMAT, Madrid, Spain;

Laboratorio Nacional de Fusion, Asociacion EURATOM-CIEMAT, Madrid, Spain;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
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Transport studies using laser blow-off injection of low-Z trace impurities injected into the TJ-II stellarator

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